# Electrolyser 2.1 Rev A. (EL 2.1 Rev A.)

Enapter’s patented anion exchange membrane (AEM) electrolyser is a standardized, stackable and flexible system to produce on-site hydrogen. The modular design – paired with advanced software integration – allows set up in minutes and remote control and management. Stack this electrolyser to achieve the required hydrogen flowrate.

# πŸ“– Resources

Rev. Availability Datasheets Owner's Manuals Quick Start Guides Battery Limits CAD Drawings Cooling Power Supply Narrow Body
EL 2.1 Rev A. Certified EN EN EN EN 3D STP
3D IGS
Air cooled AC No
EL 2.1 LC Rev A. Certified EN EN EN EN 3D STP
3D IGS
Liquid cooled AC No
EL 2.1 NB DC Rev A. Prototype EN EN EN 3D STP
3D IGS
Air cooled DC Yes

# πŸ“Έ Images

Front Right Side Left Side Isometric
EL 2.1 Rev A. Download Download Download Download
EL 2.1 Rev A.
Narrow Body
Download Download Download
EL 2.1 Rev A.
Direct Current
Download Download

# πŸš€ First Start

  • Make sure all pipes and wires are connected.

    • The Enapter EL 2.1 Owner’s manual must be followed on electrical and piping connections, operation, transportation, storage and disposal steps.
    • Insert the two supplied jumpers into the Dry Con. port on the front panel of the EL. If a safety chain needs to be integrated, please jump to Dry Contact Connection Guide in Owner s manual.
    • Plug in the power cable in the Power Port and switch the power on.
    • The electrolyser must be in Maintenance mode.
  • H2 PURGE and O2 VENT lines.

    • It is the installer s responsibility to regularly check and maintain H2 PURGE and O2 VENT lines, as well as to keep the lines free of ice or obstructions.

Warning

Do not insert any check valves or obstructions into the H2 PURGE lines. This can cause irreparable damage to your hydrogen system. No blockage should be present on O2 VENT on the User side of the interface. Never connect H2 PURGE line with O2 VENT line. Mixing these outputs is extremely dangerous.

# With Internet Connection

  1. Follow the Enapter App instructions to connect the device to Enapter Cloud.
  • Open the Enapter App and create an account.
  • Follow the steps to create a site.
  • Add a new device.
  • Scan QR-code located on the front side of the device.
  1. Follow the steps described in The First Refilling.

  2. Electrolyser is ready for use!

# Without Internet Connection

Note

The electrolyser must be updated to firmware 1.6.0 or above.

  1. Connect electrolyser and access the Web GUI. For more information please check Web GUI Documentation.

  2. Follow the steps described in The First Refilling.

  3. Electrolyser is ready for use!

# 🚦 Status LEDs Indications

Action Description LED
Power on Power on The device will turn on as soon as the required input voltage is supplied to the EL2.1 and perform a startup self-check. Red, yellow & green blink thrice
Stand-by IDLE Stand-by (Idle state) The device is idle, waiting for the start of production. Red, yellow & green are off
Stand-by Max Pressure Stand-by (Max pressure state) The device reached maximum pressure (normally 35 bar) and will resume hydrogen production automatically when the restart output pressure setpoint is reached. Green blinking
Steady Steady The device in steady state. Green steady
Button press Button press When the start-stop button is pressed. Red, yellow & green blink once
Factory reset Factory Settings Reset Simultaneously pressing the start-stop button and power up the device will activate Factory Settings Reset. Running fire (each LED blinks after another)
Maintenance Maintenance mode The device is in maintenance mode. Yellow steady
Locate Locate device When locate device is enabled via remote control. Red, yellow & green blinking
Warning Warning Heads-up event which should be taken into account to avoid Error or Fatal Error. Yellow Blinks
Error Error System Stopped. Recoverable error. Red Blinks
Fatal Error Fatal Error System stopped. Unrecoverable error. Hardware repair required. Please contact Enapter support. Red and Yellow Blinks
Panic Hardware
Panic Software
Panic System stopped. Unrecoverable error. Please contact Enapter support. Red steady with green steady (hardware problem) or yellow steady (software problem)

# ⚠️ Events

Note

All events listed below correspond to the latest firmware.

# Severity Levels

Code Severity Level LED Indication Description Comment
F Fatal Error Red and Yellow Blinks System stopped. Unrecoverable error. Hardware repair required. e.g. Pressure sensor is not connected or broken.
E Error Red Blinks System Stopped. Recoverable error. e.g. No input water pressure and internal water tank is empty.
W Warning Yellow Blinks Heads-up event which should be taken into account to avoid Error or Fatal Error. e.g. No input water pressure and internal water tank is full.

# Routines

Code Routine Comment
P Platform
C Electrolyte Pump
D Stack Ramp Down
R Water Refilling
S Steady Hydrogen Production
T Electrolyte Heater
U Stack Ramp Up
X Safety Check
F Anti-freezing
L Leakage Test
O Blowdown
H Heartbeat
Z Polarization Curve

# Warning, Error and Fatal Error Codes

Note

The Code and Name marked in bold are introduced in current release of firmware.

Code Name Severity Code Routine Code Component Condition Description
0x0000 none -- -- -- No error
0x0FFF int -- -- -- Unexcepted error, hardware failure, read logs for details
0x1F81 FP_01 F P -- Voltage < 2.9V Brownout detected, restore power and reset system
0x1F82 FP_02 F P -- Updated firmware has new mandatory settings New parameters has been added to configuration, please re-check and write new one, contact Enapter support or certified partner
0x1F83 FP_03 F P -- Peripheral
0x3F84 WP_04 W P -- Button
0x3F85 WP_05 W P -- Too low battery
0x108A FC_10 F C P107 Pump broken
0x1114 FD_20 F D PT101A Pressure drop > 2% Hydrogen leaks
0x318A WR_10 W R PT105 Pressure > 5barg Water inlet pressure too high
0x3194 WR_20 W R PT105 Pressure < 1.0barg Water inlet pressure too low
0x118A FR_10 F R LSHH102A Water level over level switch Electrolyte level too much high
0x1194 FR_20 F R LSL102D Water level below level switch Electrolyte level too much low
0x11B2 FR_50 F R LSL102D
LSM102C
Conflict between water sensors (low and medium level)
0x11B3 FR_51 F R LSM102C
LSH102B
Conflict between water sensors (medium and high level)
0x11B4 FR_52 F R LSH102B
LSHH102A
Conflict between water sensors (high and very high level)
0x11A8 FR_40 F R -- Check water leaks
0x3195 WR_21 W R -- Refilling timeout (won't be shown if WR_10 or WR_20 is present)
0x31B3 WR_51 W R LSL102D Drain completely (available only in Maintenance Mode)
0x31B4 WR_52 W R LSL102D Refill to high level (available only in Maintenance Mode)
0x31B5 WR_53 W R LSH102B Electrolyte level is very high, drain to high level Drain to high level (available only in Maintenance Mode)
0x1201 FS_01 F S PSU 48V PSU bad current
0x120A FS_10 F S PT101A
PSU 48V
Broken Membrane. Contact Enapter Customer Support
0x3215 WS_21 W S PT101A Pressure spike > 2% Drifting PT101A
0x3216 WS_22 W S LSM102C System works with electrolyte level less than medium one and can not refill (during pressure limit and etc) Refilling not happening
0x321E WS_30 W S TT106 Replace electrolyte
0x128A FT_10 F T TT106 Temperature > 58Β°C Electrolyte temperature too high
0x3294 WT_20 W T F103A Rotation < 600rpm Electrolyte cooling fan broken
0x228A ET_10 E T TT102A Temperature < 6Β°C Electrolyte temperature too low
0x330A WU_10 W U PT101A Pressure is > atmospheric pressure + 10% Gas side pressure is not atmospheric. Ramp-Up is not possible (pressure too high for start)
0x230A EU_10 E U LSM102C Cannot start the heater because the water level in the internal electrolyser tank is too low. Not enough warmup water
0x1401 FX_01 F X PT101A Pressure > 37bar Hydrogen inner pressure too high
0x1402 FX_02 F X WPS104 Water sensor is wet Water presence
0x1403 FX_03 F X PSU 48V No voltage from PSU PSU broken
0x1404 FX_04 F X HASS Current > 58A Stack current too high
0x1405 FX_05 F X TSH106 Backflow temperature too high
0x1406 FX_06 F X PT101A Hydrogen leaks
0x1407 FX_07 F X TS108 Temperature > 75Β°C Electronic board temperature too high
0x1408 FX_08 F X PSH102 Electrolyte tank pressure too high
0x1409 FX_09 F X TSLL102B Electrolyte temperature too low
0x140A FX_10 F X PSHH101B Hydrogen pressure too high
0x140B FX_11 F X MCU Temperature Sensor Temperature > 75Β°C Control Board MCU Temperature too high
0x141E FX_30 F X PT105 Water inlet pressure transmitter broken
0x141F FX_31 F X TT102A Electrolyte tank temperature transmitter broken
0x1420 FX_32 F X FM106 Electrolyte flow meter broken
0x1421 FX_33 F X TT106 Electrolyte backflow temperature transmitter broken
0x1422 FX_34 F X PT101A Hydrogen inner pressure transmitter broken
0x1423 FX_35 F X PT101C Outer hydrogen pressure transmitter broken
0x1424 FX_36 F X F1084B Rotation < 3000rpm Chassis circulation fan broken
0x1425 FX_37 F X F108C Rotation < 3000rpm Electronic compartment cooling fan broken
0x1426 FX_38 F X TS108 Electronic board temperature transmitter broken
0x1427 FX_39 F X HASS Current sensor broken
0x1428 FX_40 F X External switch Dry contact error
0x3432 WX_50 W X PT101A Hydrogen inner pressure check disabled. Contact Enapter Customer Support.
0x3433 WX_51 W X WPS104 Water presence check disabled. Contact Enapter Customer Support.
0x3434 WX_52 W X PSU 48V PSU check disabled. Contact Enapter Customer Support.
0x3435 WX_53 W X HASS Stack current check disabled. Contact Enapter Customer Support.
0x3436 WX_54 W X TSH106 Backflow temperature check disabled. Contact Enapter Customer Support.
0x3437 WX_55 W X TS108 Electronic board temperature check disabled. Contact Enapter Customer Support.
0x3438 WX_56 W X PSH102 Electrolyte tank pressure check disabled. Contact Enapter Customer Support.
0x3439 WX_57 W X TSLL102B Low electrolyte temperature check disabled. Contact Enapter Customer Support.
0x343B WX_59 W X PT105 Inlet pressure check disabled. Contact Enapter Customer Support.
0x343C WX_60 W X TT102A Electrolyte tank temperature check disabled. Contact Enapter Customer Support.
0x343D WX_61 W X FM106 Electrolyte flow meter check disabled. Contact Enapter Customer Support.
0x343E WX_62 W X F103A/V106 Electrolyte cooling check disabled. Contact Enapter Customer Support.
0x343F WX_63 W X TT106 Electrolyte backflow temperature check disabled. Contact Enapter Customer Support.
0x3440 WX_64 W X PT101C Hydrogen outer pressure check disabled. Contact Enapter Customer Support.
0x3441 WX_65 W X F104B Chassis circulation fan check disabled. Contact Enapter Customer Support.
0x3442 WX_66 W X F108C Electronic compartment cooling fan check disabled. Contact Enapter Customer Support.
0x3443 WX_67 W X External switch Dry contact check disabled. Contact Enapter Customer Support.
0x3445 WX_69 W X MCU Temperature Sensor Control Board MCU temperature check disabled. Contact Enapter Customer Support.
0x148A FF_10 F F -- Frozen pipes
0x1501 FL_01 F L -- Possible hydrogen leak detected
0x358A WO_10 W O PT101C Pressure > 25 barg Outer pressure is too high to run blowdown routine
0x3594 WO_20 W O -- The Blowdown procedure will be started at H2-production start
0x159E FO_30 F O PT101C The purge line is obstructed or the adjustable check valve (CV101B) cracking pressure is set incorrectly. Check purge line, reset system.
0x360A WH_10 W H ModBus Heartbeat Packet was not received in time Lost ModBus safety heartbeat communication
0x360B WH_11 W H Gateway Heartbeat Packet was not received in time Lost Gateway safety heartbeat communication
0x360C WH_12 W H UCM Heartbeat Packet was not received in time Lost UCM safety heartbeat communication
0x368A WZ_10 W Z -- Polarization curve cannot be started

# πŸ“ˆ Remote Monitoring and Control

# Introduction

EL2.1 Control The electrolyser EL 2.1 comes with pre-installed UCM (Universal Communication Module) that allows users to monitor the device. Over-the-air updates ensure that the latest protocols and security fixes are supported.

EL2.1 Dashboard Pre-installed UCM connects to the Enapter Gateway and send performance and error data to the Enapter Cloud. The data is stored in a time series database which displays it real-time on customizable dashboards.

EL2.1 Mobile Enapter’s mobile application ensures quick and easy installation of any energy system. Users can manage the EL 2.1 via the mobile app and will receive push notifications to warn of energy system issues.

# Network Requirements

# WI-Fi Requirements

  • 802.11a/b/g/n (2.4 GHz only)

  • 802.12 WEP, WPA, WPA2 Personal (Pre-shared key)

  • Wi-Fi client isolation must be disabled

Note

No captive portal or WPA2 Enterprise supported.

General Wi-Fi Note

The Enapter Cloud connection based on wireless communication and therefore the functionality can be affected with distance in between devices, obstructions between the devices and interference. Communication module inside the electrolyser works in station mode and utilizes Wi-Fi channel set in your infrastructure Wi-Fi router for used SSID. You are responsible to select the correct channel according to the local radio regulations.

# TCP/IP Network Requirements

Port Protocol Destination Host
(IP-Address / Range or Name)
80 TCP 193.9.249.0/24,
95.168.174.108,
95.168.174.212,
95.168.174.213
(api.enapter.com)
443 TCP 193.9.249.0/24,
95.168.174.108,
95.168.174.212,
95.168.174.213
(api.enapter.com)
123 UDP 193.9.249.0/24,
95.168.174.108,
95.168.174.212,
95.168.174.213
(ntp.enapter.com)
8883 TCP 193.9.249.0/24,
95.168.174.108,
95.168.174.212,
95.168.174.213
(mqtt.enapter.com)
1883 TCP 193.9.249.0/24,
95.168.174.108,
95.168.174.212,
95.168.174.213
(mqtt.enapter.com)

Note

Firewall must be stateful.

# Connecting your Electrolyser to Wi-Fi

To connect the EL 2.1 electrolyser to wireless networks, follow the steps in the iOS or Android Mobile Application guides below. Please note, the QR-code or preinstalled UCM's ID and PIN are required when connecting to Wi-Fi as well as credentials for the 2,4 GHz Wi-Fi network.

πŸ“— Enapter iOS Mobile Application Guide

πŸ“— Enapter Android Mobile Application Guide

During connection to Wi-Fi network the QR-code or preinstalled UCM's ID and PIN needed. The location for both of them is shown on pictures below.

Front view:

EL 2.1 Rev A. QR-code LocationEL 2.1 Rev A. Narrow Body QR-code Location

Rear view:

EL 2.1 Rev A. UCM ID LocationEL 2.1 Rev A. Narrow Body UCM ID Location

# How to connect the electrolyser to SCADA?

SCADA is a control system architecture comprising computers, networked data communications and graphical user interfaces (GUI) for high-level process supervisory management.

The EL 2.1 electrolyser can be integrated into SCADA system with Modbus TCP protocol. Alternatively MQTT interface can be used when Enapter Gateway is used.

# Modbus TCP SCADA / PLC Connection

# With Dryer Control Network (DCN)
SCADA or PLC connect with DCN

In this case the dryer and the electrolyser or electrolysers are connected over Dryer Control Network. The dryer can be monitored and controlled using the Modbus TCP of any Electrolyser in the Dryer Control Network.

# Standalone (Without Dryer Control Network)
SCADA or PLC connect without DCN

In this case the dryer will be fully automatic with no monitoring and control.

# MQTT Interface SCADA / PLC Connection

SCADA or PLC connect

In this case the dryer and the electrolyser or electrolysers are connected over MQTT protocol using Enapter Gateway. The dryer can be monitored and controlled. Also, Enapter Rule Engine can be used to implement various rules to control and monitor the dryer.

# Connection Testing

Schneider Electric Modbus Tester (opens new window) can be handy to test Modbus TCP connection on Windows PC.

Modbus Tester Connection

Note

The DHCP server or static IP address must be configured and enabled on the PC connected to the electrolyser.

If you are yousing router connected to the electrolyser The DHCP mode must be enabled on it.

# Example: Reading Heartbeat Register

Modbus Tester

  1. TCP/IP Address or URL - enter the IP address of the electrolyser.

  2. Sample mode:

    • Manual - manual reading.
    • Scheduled - rereading.
  3. Sample Rate in ms - Rereading period.

2000 ms = 2 s

  1. Data type - Holding or Input registers.

    The list of all Holding and Input registers can be found at Latest Modbus TCP Interface.

    Register number must be plus 1.

    Heartbeat ModBus Timeout - 4600 + 1 = 4601

  2. Read:

    • for Manual - single read.
    • for Scheduled - start of rereading.
  3. Readed value.

Readed value = 2 = 2000 ms.

# Syslog

Note

The electrolyser must be updated to firmware 1.8.0 or above.

Syslog is a Message Logging Standard by which almost any device or application can send data about status, events, diagnostics, and more.

Syslogging can be enabled in two ways:

  • Using Modbus register.
  • Using Web GUI of the electrolyser.

# Using Modbus Register

The following registers need to be configured to enable Syslog using Modbus:

  1. Holding Register 4042
  • Data type - Uint32
  • Name - System logs
  • Severity:
    • 0 = disable logging (default)
    • 1 = only fatal errors
    • 2 = fatal errors and errors
    • 3 = warnings and more important
    • 4 = everything before and important messages
    • 5 = all messages, except internal debug ones
    • 6 = all messages
  1. Holding Register 4044
  • Data type - Uint32
  • Name - Syslog IP Address
  • Default value 255.255.255.255 (Broadcast)
  1. Holding Register 4046
  • Data type - Uint16
  • Name - Syslog Port
  • Default port 514

# Using Web GUI

System logs can be configured using the Web GUI of the electrolyser. Please check the Syslog Configuration paragraph of the Web GUI documentation.

# Receiving Syslogs

Tftpd64 (opens new window) can be handy to receive system logs on Windows PC.

Tftpd64
  • Enable system logging using Modbus Registers or Web GUI.
  • Tap on the Syslog server
  • You will receive system logs depending on chosen severity.

# πŸ”Œ Modbus TCP Interface

In case you want to monitor and manage your device with Modbus TCP interface check out the latest registers map guide and use cases:

Warning

In order to support multiple Modbus TCP masters connections firmware version must be updated to 1.5.1 or above

Warning

Modbus TCP works over an insecure connection and was designed for usage in isolated Local Area Networks for Operation, Administration and Management. Please take into account that connection to public networks such as the Internet is not recommended for security reasons.

# Examples

The sample Modbus TCP Python scripts are available at our Github Page (opens new window) under Apache 2.0 License.

# πŸ–₯️ Web GUI

# Getting Started

Enapter EL21 Web GUI (Graphical User Interface) is made for local control and monitoring using a web browser.

Note

The electrolyser must be updated to firmware 1.6.0 or above.

Warning

Electrolyser Web GUI works over an insecure HTTP connection and was designed for usage in isolated Local Area Networks for Operation, Administration and Management. Please take into account that connection to public networks such as the Internet is not recommended for security reasons.

Chek out video describing main functionality of the Web GUI.

# Connections

Connect the electrolyser using one of the methods listed below.

# Single Electrolyser Connection
Web GUI - Connection 1 EL

Note

The DHCP server must be configured and enabled on the PC connected to the electrolyser.

# Single Electrolyser Connection With Router
Web GUI - Connecting 1 EL + Router

Note

The DHCP mode must be configured and enabled on the router connected to the electrolyser.

# Multiple Electrolysers Connection
Web GUI - Multiple Electrolysers Connection

Note

The DHCP mode must be configured and enabled on the router connected to electrolysers.

# Physical Connection Specification
Parameter Description
Cable CAT5 or CAT6 Ethernet cable with RJ45 connectors. Max Distance: 100 meters / 328 ft.
Speed 10/100BASE-T. An Ethernet network transmitting at 10 and 100 Mbps.

# Access The Web GUI

  1. Find the label with UCM ID and PIN code on the back panel of the electrolyser.
    Web GUI - Label
  2. Open the Web browser.
  3. There are two main ways to access the Web GUI.
  • Way 1. Use the UCM ID to create a link with .local hostname like http://UCM_ID.local.
    For example: http://02CCF660F6.local.
    Web GUI - UCM ID Link

Note

mDNS must be enabled to resolve .local hostname.
Use HTTP protocol.

Warning

There is known issue (opens new window) of using WiFi under Windows with access (name resolution) to the .local hostnames. In case you can not access the Web GUI this way please use a local ethernet connection to the electrolyser or IP address as a hostname.

  • Way 2. Use the IP address of the electrolyser.
  1. In opened page enter UCM ID and PIN code.
    Web GUI - Log In
  2. Click on the Login button to access the Web GUI.

# Layouts

Enapter EL21 Web GUI has 7 main layouts:

Web GUI - Layouts

  1. The Header Toolbar
  2. Production Bar
  3. Events Bar
  4. Monitoring Sidebar
  5. Status Sidebar
  6. Main Configuration Bar
  7. Control Network

# The Header Toolbar

WEB GUI - The Header Toolbar

Parameter Description
Reboot Command to Reboot the device.
Locate Command to enable or disable the Locate device functionality.
When enabled red, yellow and green LEDs are blinking.
Logout Command to Logout from Web GUI.
Help Useful links:
1. Our customer service at support@enapter.com.
2. EL 2.1 Main Page.
3. This documentation.
4. Relevant Modbus Registry Table.

# Production Bar

WEB GUI - Production Bar

Parameter Description
Current H2 Production Rate Current hydrogen production rate corresponding to the percentage value. In NLh.
Current production rate can be set in Commands tab in Main Configuration Bar.
Outlet Pressure Outlet hydrogen pressure. In bar.

# Events Bar

WEB GUI - Events Bar

Parameter Description
Type Type of event.
Possible types of events:
1. Warning - Heads-up event which should be taken into account to avoid Error or Fatal Error.
2. Error - System Stopped. Recoverable error.
3. Fatal Error - System stopped. Unrecoverable error. Hardware repair required. Please contact Enapter support.
Code The code of all events can be found in Modbus TCP Interface.
Description The description of all events can be found in Modbus TCP Interface.

# Monitoring Sidebar

WEB GUI - Monitoring Sidebar

Parameter Description
State The main system state of the electrolyser.
Possible states:
1. None - The electrolyser is not started.
2. Maintenance - The electrolyser is in Maintenance Mode.
3. Expert - Special mode to config the electrolyser.
4. Error - The electrolyser has Error. Recoverable event.
5. Fatal - The electrolyser has Fatal Error. Unrecoverable event. Please contact Enapter Support.
6. IDLE - IDLE process.
7. Steady - Electrolysis process in progress.
8. Stand by - The electrolyser stops hydrogen production (max pressure reached).
9. Blowdown - Service process to blowdown the valves.
10. Curve - Service process to check the stack.
Stack Substate Possible Stack substates:
1. None - The electrolyser is not started.
2. Maintenance - The electrolyser is in Maintenance Mode.
3. IDLE - IDLE process.
4. Warmingup - Water heating in the water tank.
5. Hydration - Preparation of the stack for work.
6. Rampup1 - Preparation of the stack for work.
7. Rampup2 - Preparation of the stack for work.
8. Steady - Electrolysis process in progress.
9. Purge - Purge from accumulated moisture.
10. Rampdown1 - Preparation of the stack to turn off.
11. Rampdown2 - Preparation of the stack to turn off.
12. Maxpressure - The electrolyser stops hydrogen production (Stand by).
13. Halt - System inactivity.
Service Substate Possible Service substates:
1. None - The electrolyser is not started.
2. Maintenance - The electrolyser is in Maintenance Mode.
3. IDLE - IDLE process.
4. Blowdown - Blowdown process started.
5. Blowdown_stop - Blowdown process stopped.
6. Blowdown_restack - Preparation for hydrogen production after Blowdown.
7. Halt - System inactivity.
8. Calibration - System in Calibration Mode.
9. Curve_starting - Polarization Curve Routine started.
10. Curve_timeout - Polarization Curve Routine process.
11. Curve_data - Polarization Curve Routine process.
12. Curve_ready - Polarization Curve Routine process.
Refilling Substate Possible Refilling substates:
1. None - The electrolyser is not started.
2. IDLE - IDLE process.
3. Filling - Filling the water tank.
4. Draining - Draining the water tank
5. Maintenance - The electrolyser is in Maintenance Mode.
6. Koh_refilling - Electrolyte refilling started.
7. Koh_refilling_finish - Electrolyte refilling finished.
8. Forcefilling - Force filling started.
9. Initialfilling - Force filling on special start.
10. Halt - System inactivity.
Electrolyser Substate Possible Electrolyser substate:
1. Curve - Polarization Curve Routine process.
2. Blowdown - Blowdown process.
3. Halt - System inactivity.
4. Maintenance - The electrolyser is in Maintenance Mode.
5. IDLE - IDLE process.
6. Steady - Electrolysis process in progress.
7. Standby - The electrolyser stops hydrogen production (max pressure reached).
System Substate Possible System substates:
1. None - The electrolyser is not started.
2. Operation - System is operation
3. Maintenance - The electrolyser is in Maintenance Mode.
4. Expert - Special mode to config the electrolyser.
5. Fatal - The electrolyser has Fatal Error. Unrecoverable event. Please contact Enapter Support.
6. Error - The electrolyser has Error. Recoverable event.
Current Production Rate Current hydrogen production rate. In percent.
Current production rate can be set in Commands tab in Main Configuration Bar.
Inner Hydrogen Pressure Inner hydrogen pressure. In bar.
Outlet Hydrogen Pressure Outlet hydrogen pressure. In bar.
Water Inlet Pressure Pressure of the inlet water. In bar.
Water Inlet Pressure must be in the range 0.5 - 4 bar.
Board Temperature Temperature on the main board of the electrolyser. In Celsius.
Electrolyte Tank Temperature Temperature in the water tank of the electrolyser. In Celsius.
Electrolyte Age Number of day(s) passed since last electrolyte replacement procedure.
Water Tank Level Water level in the water tank of the electrolyser.
Possible water levels in the water tank:
1. Low - When the water level falls this level the electrolyser will go to Fatal Error.
2. Medium - Normal operation water level.
3. High - Maximum water level for normal operation.
4. Very High - The tank is overfilled. When the water level reaches this level the electrolyser will go to Fatal Error (FR_10: Electrolyte level too much high).
Hydrogen Purity 99,999% | HIGH PURITY - Hydrogen purity after the dryer. Shown only if the dryer connected to the electrolyser and Dryer Control Network (DCN) is enabled.

# Status Sidebar

WEB GUI - Status Sidebar

Parameter Description
State The main system state of the electrolyser.
The description of all possible states can be found in Monitoring Sidebar.
Status LEDs Indications For more information please check Status LEDs Indications.

# Main Configuration Bar

Main Configuration Bar has 3 sub-layouts:

# Commands

WEB GUI - Commands

# Start / Stop

Remote Start or Stop hydrogen production.

# Locate ON / OFF

Command to enable or disable the Locate device functionality.

When enabled red, yellow and green LEDs are blinking.

# Maintenance Mode

Command to enable or disable Maintenance Mode.

Maintenance Mode is used to safely fill and drain the device, as well as to guide you through inspection and other routine maintenance tasks.

# Refilling

Refiling the electrolyser can be done by turning on the Maintenance Mode. The water tank must be empty or the electrolyte level must be less than Low.

When Maintenance Mode enabled and water level < Low you will switch to Electrolyte Refilling Wizard.

Follow steps in the Electrolyte Refilling Wizard to refill the electrolyser.

  • Step 1.
    Web GUI Refilling 1

  • Step 2.
    Web GUI Refilling 2

  • Step 3.
    Web GUI Refilling 3.1Web GUI Refilling 3.2Web GUI Refilling 3.3Web GUI Refilling 3.4
    Web GUI Refilling 3.5

  • Step 4.
    Web GUI Refilling 4

# Overfilling

During the Refilling, the electrolyte can exceed the Very High level - Overfilling.

In this case, you will switch to Overfilling Wizard.

Follow steps in the Overfilling Wizard to solve this issue.

Web GUI Overfilling
# Draining

Draining the electrolyser can be done by turning on the Maintenance Mode. The electrolyte level must be more than Low.

When Maintenance Mode enabled and water level > Low you will switch to Electrolyte Draining Wizard.

Follow steps in the Electrolyte Draining Wizard to drain the electrolyser.

  • Step 1.
    Web GUI Draining 1

  • Step 2.
    Web GUI Draining 2

  • Step 3.
    Web GUI Draining 3.1Web GUI Draining 3.2Web GUI Draining 3.3
    Web GUI Draining 3.4

  • Step 4. After the Electrolyte Draining Wizard you will automatically switch to the Electrolyte Refilling Wizard.

# Reboot

Command to Reboot the device.

# Force Water Refill

Command to enable Force Water Refilling.

This command is used to refill the water tank to the High level.

# Current Production Rate

Current hydrogen production rate. In percent.

To set Current Production Rate:

  • Tap on the Change button.
  • In the opened tab you can set the current production rate using range input or enter it using a keyboard.
  • Tap on the Apply button to set Current Production Rate.
  • Tap on the Cancel button to discard the changes.
  • Minimum production rate is limited to 60%. More information can be found here (opens new window).

# Configuration

WEB GUI - Configuration

# Default Production Rate

Default hydrogen production rate. In percent.

Default Production Rate unlike Current Production Rate will be saved after Reboot.

To set Default Production Rate:

  • Tap on the Change button.
  • In the opened tab you can set the current production rate using range input or enter it using a keyboard.
  • Tap on the Apply button to set Default Production Rate.
  • Tap on the Cancel button to discard the changes.
  • Minimum production rate is limited to 60%. More information can be found here (opens new window).
# Outer Pressure Limits

Pressure limits to stop and continue hydrogen production.

To set Outer Pressure Limits:

  • Tap on the Change button.
  • In the opened tab you can change Restart Outer Pressure and Max Outer Pressure.
  • Restart Outer Pressure - switches the electrolyser back to steady when pressure falls less this value. Must be < Max Outer Pressure.
  • Max Outer Pressure - reaching this pressure switches the electrolyser to stand by and stops hydrogen production. Must be < 37.5 bar and > Restart Outer Pressure.
  • Tap on the Apply button to set Outer Pressure Limits.
  • Tap on the Cancel button to discard the changes.
# Ethernet Settings

By default the DHCP is enabled.

If you want to change Ethernet settings please follow these steps:

  • Tap on the Change button.
  • In the opened tab you can change the following ethernet settings:
    • IP Address
    • Netmask
    • Gateway IP
  • Tap on the Apply button to change Ethernet settings.
  • Tap on the Cancel button to discard the changes.
# Safety Heartbeat

Safety Heartbeat is a periodic signal generated by Enapter Gateway or any Modbus master device (i.e PLC) to indicate a continuous connection with the electrolyser.

To set Safety Heartbeat for Enapter Gateway or any Modbus master device:

  • Tap on the Change button.
  • In the opened tab you can set Safety Heartbeat timeouts. The value must be in seconds.
  • Tap on the Apply button to set Safety Heartbeat timeouts.
  • Tap on the Cancel button to discard the changes.
  • To disable Safety Heartbeat for Enapter Gateway or any Modbus master device timeouts must be set to 0.
# Syslog Configuration

Note

The electrolyser must be updated to firmware 1.8.0 or above.

Syslog Configuration can be enabled to receive system logs.

If you want to change Syslog Configuration please follow these steps:

  • Tap on the Change button.
  • In the opened tab you can change the following Syslog parameters:
    • IPv4 Address - default 255.255.255.255
    • UDP Port - default 514
    • Severity - default 0
      • 0 - Disable
      • 1 - Fatal Errors
      • 2 - Fatal Errors and Errors
      • 3 - Fatal Errors, Errors and Warnings
      • 4 - Fatal Errors, Errors, Warnings and Notices
      • 5 - Fatal Errors, Errors, Warnings, Notices and Debug Messages
  • Tap on the Apply button to change Syslog Configuration.
  • Tap on the Cancel button to discard the changes.
# System Time Configuration

Note

The electrolyser must be updated to firmware 1.8.0 or above.

Set system's UTC date & time.

If you want to change System Time Configuration please follow these steps:

  • Tap on the Change button.
  • In the opened tab you can change the following parameters:
    • System Date
    • System Time
  • Tap on the Apply button to change System Time Configuration.
  • Tap on the Cancel button to discard the changes.
  • Or you can synchronize System Date and System Time with your browser by clicking on the Sync with your browser time button.

# System Parameters

WEB GUI - System Parameters

Parameter Description
Model Model of the electrolyser. Must be EL21.
Firmware Version Current firmware version of the electrolyser (Ex: 1.6.0-r2.release).
Firmware Build Unique ID Firmware build unique ID (Ex: 219560661).
Device ID Device ID - unique, non zero integer value (Ex: 2418578571).
Device UUID Device UUID - unique UUID (Ex: 00078000-2912-123B-B04E-999123543231).
Chassis Serial Number Chassis serial number, configured on the factory (Ex: AA2101019SPI).
Stack Serial Number Stack's serial number, configured on the factory (Ex: 23E21011PI).
Product Code Product code, defined efuses and configuration (Ex: ELE210535A2AXV01-03).
eFuse Board's configuration stored in one time programming memory (Ex: 2.0 R1.0).
UCM Version Current firmware version of the UCM (Ex: 1.8.0-rc.12.88300).
Ethernet MAC address Ethernet MAC address unique ID (Ex: 00:80:E1:4F:92:76).
UCM ID UCM ID - UCM's unique ID (Ex: 02CCF660F6042FB1447E5B020E6744FCC325A5F9).
Wi-Fi MAC address Wi-Fi MAC address unique ID (Ex: C8:2B:96:A8:F5:2C).

# Control Network

Web GUI - Control Network

Note

The electrolyser must be updated to firmware 1.8.0 or above.

Parameter Description
Dryer Control Network Status of the network.
ONLINE - the network is online.
OFFLINE - the network is offline.
Mesh ID Mesh network unique ID.
Electrolyser The list of electrolysers (up to 5) connected to the Dryer Control Network.
You can also check online/offline status of electrolysers.
Electrolyser Device ID UCM ID of the electrolyser.
Dryer State of the dryer.
Possible states:
WAITING FOR POWER - The dryer is waiting to be powered on.
WAITING FOR PRESSURE - The dryer is waiting for a sufficient amount of inlet pressure and will automatically resume drying hydrogen when the input pressure threshold is reached.
STOPPED BY USER - The dryer is not drying hydrogen because it has been stopped by the user. It is waiting for the next command desired by the user.
STARTING - The dryer is starting up and checking which state to be in next.
STAND-BY - The dryer is waiting for the output pressure to decrease below the allowable threshold value.
DRYING 0 - Block 0 is drying the hydrogen, while block 1 is being heated and regenerated.
COOLING 0 - Block 0 is drying the hydrogen, while block 1 is being cooled down after its regeneration.
SWITCHING 0 - Block 0 is drying the hydrogen while slowly pressurizing block 1, to prepare block 1 for the next drying cycle.
PRESSURIZING 0 - Both blocks dry the hydrogen to smoothly transition into the drying cycle of block 1.
FINALIZING 0 - Block 1 dries the hydrogen and block 0 prepares to be regenerated.
DRYING 1 - Block 1 is drying the hydrogen, while block 0 is being heated and regenerated.
COOLING 1 - Block 1 is drying the hydrogen, while block 0 is being cooled down after its regeneration.
SWITCHING 1 - Block 1 is drying the hydrogen while slowly pressurizing block 0, to prepare block 0 for the next drying cycle.
PRESSURIZING 1 - Both blocks dry the hydrogen to smoothly transition into the drying cycle of block 0.
FINALIZING 1 - Block 0 dries the hydrogen and block 1 prepares to be regenerated.
ERROR - The dryer has stopped due to an error. Errors will be reported using remote monitoring. Some errors can be solved remotely.
BYPASS - The dryer is manually disabled (usually due to a problem) and hydrogen gas can pass through both blocks.
BYPASS 1 - The dryer is manually disabled (usually due to a problem) and hydrogen gas can pass through block 0.
BYPASS 2 - The dryer is manually disabled (usually due to a problem) and hydrogen gas can pass through block 1.
MAINTENANCE - The device is in maintenance mode (can only be enabled by Enapter technicians).
EXPERT - The dryer is in a special mode used to change dryer configurations (which should only be enabled by Enapter technicians, or in special circumstances).
Dryer Device ID UCM ID of the dryer.
START
STOP
REBOOT
Commands to start, stop or reboot the dryer.
List of events The list of the dryer events. The list will show the last two events only. In case of more events you can check it by clicking Show All. The complete list of Dryer 2.0 events. The complete list of Dryer 2.1 events.
Input pressure The pressure of the hydrogen on the input line of the dryer. In bar.
Output pressure The pressure of the hydrogen on the output line of the dryer. In bar.
Show all The list of all parameters of the dryer.
How To Delete? Instructions how to delete the Dryer Control Network.

# πŸ’§ Refilling and Draining

Note

To fill and drain the electrolyte described in this section, you need an internet connection and Enapter mobile application. Filling and draining the electrolyte can also be done without internet connection using Enapter Web GUI.

# The First Refilling

Before DI water is added automatically, the electrolyser needs to be initially filled with electrolyte.

Materials required:

  • Safety Glasses
  • Nitrile Gloves
  • Electrolyte bag with 3.6L of 1% KOH solution
  • Threaded puncture seal cap
  • Supplied refilling pipe
  • Mobile phone with installed Enapter App

Follow these steps to complete the first refilling of the electrolyte:

  • Step 1. Put on PPE. The minimum required equipment are safety goggles to protect from splashes and nitrile gloves. Ensure your working area is clean to avoid chemical contamination and potential exposure hazards.
  • Step 2. The electrolyser must be in Maintenance mode and the electrolyte tank must be empty. Do not leave the device powered and unattended while in Maintenance mode.
  • Step 3. Switch the original cap from the electrolyte bag to the threaded puncture seal cap. Connect refilling pipe to the electrolyte bag. Pull and hold the movable part of the connector and connect it to the electrolyte bag.
    Refilling Pipe Connection
  • Step 4. Fully insert the refilling pipe into the FILL/DRAIN port.
  • Step 5. Carefully raise the bag with the filling solution above the device. Never lift the electrolyte above your eye level. The solution will start filling the internal electrolyte tank immediately. If this does not occur, ensure the O2 VENT line is not obstructed.
  • Step 6.1. Follow the steps provided by the Enapter App: pour until the App shows a full tank.
  • Step 6.2. If you are using Web GUI follow the steps provided by the Electrolyte Refilling Wizard: pour until the Wizard shows a full tank.
  • Step 7. Disconnect refilling pipe from the FILL/DRAIN port by pressing down the button on the port. Press the button and pull the connector out of the port.
  • Step 8. Confirm finish of refilling by pressing the Exit button in the App.

You are done! The device is ready to be used and no other action is required. The EL 2.1 will automatically refill DI water whenever it needs it.

# Overfilling

During the First Refilling, the electrolyte can exceed the maximum level - overfilling. This will make the electrolyser go into error - if this happens, you need to pour off the electrolyte back to the electrolyte bag completely and follow these steps:

  • Step 1. Put the electrolyte bag down and pour off the electrolyte completely.
  • Step 2. Turn OFF an ON the breaker on the front panel of the electrolyser.
  • Step 3. Return to the First Refilling.

Note

Starting from firmware 1.6.0 the electrolyser will not go into error. You need to put the bag down and pour off the excess electrolyte.

# Electrolyte Draining

The module must be drained for transport, installation, and before the routine changing of the electrolyte in the electrolyser to prolong system life.

Materials required:

  • Safety Glasses
  • Nitrile Gloves
  • Clean 5L container
  • Supplied draining pipe
  • Mobile phone with installed Enapter App

Follow these steps to drain the electrolyser:

  • Step 1. Put on PPE. The minimum required equipment are safety goggles to protect from splashes and nitrile gloves. Ensure your working area is clean to avoid chemical contamination and potential exposure hazards.
  • Step 2. Enable Maintenance mode using the Enapter App or Web GUI.
  • Step 3. Make sure the O2 VENT line is not obstructed.
  • Step 4. Prepare the container to catch the drained liquid and insert the end of the draining pipe into it.
  • Step 5. Fully insert the draining pipe into the FILL/DRAIN port. The solution will start pouring out immediately.
  • Step 6. Once the solution stops pouring, disconnect the draining pipe from the FILL/DRAIN port by pressing down the button on the port. Press the button and pull the connector out of the port.

Warning

Thermal hazard! Avoid contact with the heated electrolyte solution.

# πŸ”§ Maintenance Tasks

The EL 2.1 is designed to provide many hours of service with minimal maintenance. Proper care and maintenance by qualified personnel help to maximize the operating hours of the unit. The Mobile Application, Cloud Connection and Web GUI help to execute the refilling process.

# Inspect Physical Deterioration

  • Period - once per year.

  • Instructions - The unit should be inspected for obvious signs of physical damages.

# Leakage Testing

  • Period - once per year.

  • Instructions - All hydrogen connections must be tested for leakages. Enapter recommends to use one of the techniques listed in Appendix I in Owner's manual.

# Electrolyte Replacement

  • Period - once per year.

  • Instructions - For maintaining the device after commissioning, the internal tank must be emptied and new electrolyte must be filled into the device. For more information, please refer to the Electrolyte Draining section, and then follow the instructions for the The First Refilling of the electrolyte.

  • Depending on the frequency of use it is possible that the internal tank needs to be emptied and refilled more than once a year. By connecting your device to the Enapter Cloud (opens new window), it is possible to receive alerts when the stack's voltage starts to increasing – this typically means an electrolyte change is needed. The electrolyte change will help the electrolytic stack to return to a lower voltage, decreasing the power consumption of the device and increasing its lifetime.

# Cleaning

  • Period - once per year.

  • Instructions - When performing the routine maintenance processes and checks, the machine should be inspected and cleaned. Start by carefully using a vacuum cleaner (not included) to clean out the ventilation openings/grills. Afterward, use a damp cloth (no acids, aggressive or abrasive substances) to clean the outside of the unit.

# πŸ•ΈοΈ Dryer Control Network

# Introduction

The Dryer Control Network (DCN) function is Smart Control for the Dryer using M2M (opens new window) communication between electrolyzers and the dryer via a wireless MESH network. This type of control allows to lower down energy consumption, reduce the possibility of operating errors and increase the safety.

The MESH network operates on the basis of the IEEE 802.11a/b/g/n standard at 2.4 GHz and allows you to connect up to 5 Electrolysers and 1 Dryer without requiring any specific Wi-Fi infrastructure support. MESH network automatically choose the root device (which is actually connected to the WiFi router) in the network based on Wi-Fi signal strength to ensure the reliable communication.

Aside to intelligent control, Dryer Control Network allows to:

  • Monitor and manage the Dryer from any Electrolyser in the MESH network using Modbus TCP interface. To learn more check the Latest Modbus TCP Interface paragraph for Dryer registers.
  • Cover WiFi blind spots in home-deployment scenarios where the WiFi signal cannot be reached.
  • Enlarge maximum number of possible connections to the WiFi router. For 6 devices (5 Electrolysers and 1 Dryer) in the Dryer Control Network only 1 connection will be established to the WiFi router instead of 6, because only root device is connected to the WiFi router.

Dryer Control Network Quick Start Guide

# Dryer Control Network with Enapter Cloud Connection

# How it works?

When Dryer Control Network (DCN) is enabled, the Dryer will start only when at least one of the Electrolysers is reporting the Steady state. In all other cases the dryer will be automatically stopped. When you want to ensure that Dryer won't be started automatically you can stop it manually by pressing the button on the front panel or via the stop button in the cloud.

Electrolysers and Dryer must be connected to the Cloud and available online.

# Requirements

  • Dryer Firmware: 3.1 and later.
  • Electrolyser 2.1 Firmware: 1.5 and later.
  • Mobile Application: 2.11 and later.

# Enabling Dryer Control Network

To enable Dryer Control Network (DCN):

  1. Make sure all devices are installed and turned on.
  2. Connect the Dryer and Electrolysers to the site in the Enapter Cloud.
  3. Open the Dryer Dashboard in the Enapter App.
  4. Press Info button at the top right corner to open the About screen.
  5. Select the Dryer Control Network option. In case you do not see this option in the list, make sure the device firmware is up to date and your access level allows you to control the device.
  6. Click Create Control Network.
  7. With a checkboxes select up to 5 Electrolysers which are physically connected to the Dryer.
  8. Click Create button and confirm it.
  9. Wait while Network enabled on all devices.

# Removing Dryer Control Network

To remove Dryer Control Network (DCN):

  1. Run Enapter App and navigate to your site Dashboard
  2. Select the Dryer from the list and click on Dryer Control Network button in the top right corner near the Info button.
  3. Click Delete Network and confirm removal.
  4. Wait while Network is removed.

# Isolated Dryer Control Network

Warning

In case your devices are connected to the Isolated Dryer Control Network (IDCN) they can not be connected to the Enapter Cloud.

Note

Status of the Isolated Dryer Control Network (IDCN) is available only in the Electrolyser's Web GUI.

# How it works?

When Isolated Dryer Control Network (IDCN) is enabled, the Dryer will start only when at least one of the Electrolysers is reporting the Steady state. In all other cases the dryer will be automatically stopped. When you want to ensure that Dryer won't be started automatically you can stop it manually by pressing the button on the front panel.

# Requirements

  • Dryer Firmware: 3.3.0 and later.
  • Electrolyser 2.1 Firmware: 1.8.0 and later.

# Enabling Isolated Dryer Control Network

  1. Start Dryer's Pairing Mode
  • Turn off the Dryer.
  • To begin pairing, press and hold the Start/Stop button and TURN ON the Dryer.
  • Hold the button. The LEDs will start blinking one after another. Wait until the LEDs stop and start blinking again.
  • Release the button. All LEDs on the Dryer will blink once and continue blinking one by one.
  • The Dryer is in pairing mode. Start pairing Electrolysers as shown below. The pairing mode will stay active for 30 minutes.
  1. Start Electrolyser’s Pairing Mode
  • Turn off the Electrolyser.
  • To begin pairing, press and hold the Start/Stop button and TURN ON the Electrolyser.
  • Hold the button. The LEDs start blinking one after another. Wait until the LEDs stop and start blinking again.
  • Release the button. All LEDs on the Electrolyser will blink once and continue blinking one by one.
  • The Electrolyser is in pairing mode.
  • Repeat step 2 for each Electrolyser you want to connect.
  1. Finish Pairing
  • Press the Start/Stop button on the Dryer to finish pairing. All LEDs will blink once.

# Removing Isolated Dryer Control Network

In case you have any issue with your Isolated Dryer Control Network (IDCN), you can delete it using Factory Settings Reset. You need to reset the Dryer and each connected Electrolyser in any order.

For more information please check the Factory Settings Reset section.

# Limitations

General Wi-Fi Communication Note

The Dryer Control Network based on wireless communication therefore the functionality can be affected with distance in between devices, obstructions between the devices and interference. At the moment when this guide is written the MESH network utilizes the same Wi-Fi channel as the infrastructure Wi-Fi router used for Enapter Cloud connection. You responsible to select the correct channel according to the local radio regulations.

Factory Reset Note

When Dryer Control Network is enabled it is not possible to set up device (Electrolyser or Dryer) using Mobile App by scanning QR code without making Factory Settings Reset or Removing Dryer Control Network.

Wi-Fi SSID Change

In case you plan to move the systems to a new site location where different Wi-Fi SSID is used it is recommended to Remove Dryer Control Network in advance using Mobile Application while devices are still connected using existing Wi-Fi SSID to the Cloud.

In case your device is already Offline and it is not possible to use old Wi-Fi SSID you required to perform Factory Settings Reset. To learn how to make this - refer to the Factory Settings Reset paragraph of this manual.

Dryer Control Network and dryer-management-rule Plugin Compatibility

The Dryer Control Network is incompatible with dryer-management-rule plugin on the Gateway. It is required to disable plugin before activation of the Dryer Control Network.

# πŸ’š Safety Heartbeat

This functionality increases safety in cases of loss of control by Enapter Gateway or any 3rd party Modbus master device.

Safety Heartbeat presented in EL 2.1 firmware 1.2.0 is a periodic signal generated by Enapter Gateway or any Modbus master device (i.e PLC) to indicate continuous connection with the electrolyser.

If the electrolyser does not receive the heartbeat in a time (heartbeat period) β€” the machine will normally shut down. Lose of the signal may happen when Gateway or PLC is powered off, when there is connection issue.

# EL 2.1 Heartbeat

To activate Heartbeat on the EL 2.1 you need to change Heartbeat parameters. To do it use Modbus Holding Register #4600 (for Modbus master) or #4602 (for Enapter Gateway).

Parameters:

Heartbeat_gatewaytimeout_s - timeout for Gateway Heartbeat in seconds. Default value = 0 (disabled).

Heartbeat_modbustimeout_s - timeout for Modbus Heartbeat in seconds. Default value = 0 (disabled).

This parameters can also be changed using Web GUI. Navigate to Configuration bar and set Heartbeat timeouts.

# Gateway Heartbeat

How to activate Safety Heartbeat on the Gateway:

  1. Connect to the Gateway - please check this page (opens new window).

  2. Configure Safety Heartbeat on the Gateway - please check this page (opens new window).

# Modbus Heartbeat

How to activate Safety Heartbeat using Modbus protocol - please check the example of Writing Heartbeat Modbus Timeout (opens new window).

# πŸ’¨ Blowdown Routine

This automatic routine will appear if the electrolyser has not been in STEADY or RAMP UP mode for a certain period of time; in other words, if the electrolyser has not been in use for some time. The relief valve on the outlet of the electrolyser which is a mechanical spring valve, not being in use it might not work properly when the 29 bar is reached and might need extra pressure to open the first time.

There will be a warning that notifies when the routine starts: WARNING β€œWO_20”.

The Blowdown Routine doesn't interfere with the normal ramp up routine, but only makes some changes to the safety routine checks.

The Blowdown Routine can be enabled using Enapter Cloud.

# πŸ’» Firmware

# Firmware 1.8.0 ✨

# Previous Versions

# Firmware 1.7.0

# Firmware 1.6.1

# Firmware 1.6.0

# Firmware 1.5.2

# Firmware 1.5.1

# Firmware 1.5.0

# Firmware 1.4.0

# Firmware 1.3.0

# Firmware 1.2.3

# Firmware 1.2.1

# Firmware 1.2.0

# Firmware 1.1.2

# Firmware 1.1.1

# Firmware 1.1.0

# Firmware 1.0.2

# Firmware 1.0.1

# Firmware 1.0.0

# How to Update the Firmware?

To update the firmware electrolyser must be connect to the Enapter Cloud (opens new window). How to do it please check here.

# Updating the Firmware Using Enapter Cloud

  1. Login into Enapter Cloud (opens new window).
  2. Open your Site navigate to the electrolyser's page you want to update.
  3. At the left sidebar click on the Update Firmware button at the Firmware Info section.
  4. In opened window click on the Check for updates button.
  5. If you have the latest firmware version you will see You have the latest version.
  6. If update is available you will see Change Log.
  7. Click the Update button to update the firmware.
  8. Wait until the update complete. This can take a while.

# Updating the Firmware Using Enapter Mobile App

  1. Login into Enapter Mobile App.
  2. Open your Site and navigate to the electrolyser's page you want to update.
  3. Navigate to the About tab (ℹ️) and click on the Firmware button.
  4. In opened tab click on the Check for Updates button.
  5. If you have the latest firmware version you will see You have the latest version.
  6. If update is available you will see Change Log.
  7. Click the Update button to update the firmware.
  8. Wait until the update complete. This can take a while.

# Updating the Firmware Using Electrolyser Web GUI

Note

Firmware updates with Electrolyser Web GUI are supported on Firmware versions 1.7.0 and higher.

Important

Never upload firmware files recieved from untrusted source. Enapter is not responsible for any missbehaviour or harm caused by untrusted firmware usage or violating update instructions. Contact Enapter Customer Support with any questions and to ensure that correct firmware files are used.

It is always recommended to update Electrolyser firmware using Enapter Cloud and Mobile Applicion. Hover these types of update require stable internet connection. In cases when it is not possible to have your electrolyser connected to Enapter Cloud it is possible to update Electrolyser firmware using Web GUI.

To perform update:

  1. Save and unzip the recieved firmware package to local hard drive of your computer the way you have two files named fw_ucm_0xXXXX_X.X.X.ena and fw_cbd_0xXXXX_X.X.X.ena next to each other.
  2. Open Web GUI of your electrolyser.
  3. Navigate to System Parameters tab.
  4. Click Update link. The Upload Firmware screen will appear.
    Web GUI - Upload Firmware
  5. Drag and drop or Select file with UCM firmware named fw_ucm_0xXXXX_X.X.X.ena from your local hard drive.
  6. On the screen you will see the confirmation that firmware file is recognized by showing up the UCM Firmware version.
  7. Press Upload button and wait the process to finish with Upload and Installation steps. It will take up to 10 minutes. Don't turn electrolyser off and don't close the browser.
  8. Press Done after recieving the message UCM firmware was updated successfully.
  9. Drag and drop or Select file with UCM firmware named fw_cbd_0xXXXX_X.X.X.ena.
  10. On the screen you will see the confirmation that firmware file recognized by showing up the Control Board Firmware version.
  11. Press Upload button and wait the process to finish with Upload and Installation steps. It will take up to 10 minutes. Don't turn electrolyser off and don't close the browser.
  12. Press Done after you will recieve the message Control Board was updated successfully.

Note

If Site has Enapter Gateway it needs to be updated to version 1.8.9 or higher.

Note

Make sure you have physical access to the device before starting the update process.

Warning

Do not power off the device during the firmware update.

Warning

Remove Dryer Control Network before updating the firmware.

# βš™οΈ Factory Settings Reset

Factory Settings Reset presented in EL 2.1 firmware 1.3.0 allows to reset device to factory settings.

To enable Factory Settings Reset:

  • Turn off the device.
  • Press and hold the Start/Stop button and turn on the device.
  • Hold the button. LEDs start blinking one after another.
  • Release the button. All LEDs will blink once.
  • Factory Settings Reset started. Device will be automatically rebooted. All LEDs blink trice.

There will be a warning if the Start/Stop button have not been released: WARNING WP_04: BUTTON.

After the Factory Settings Reset the electrolyser will move to Maintenance Mode if water level is low than "low level". If water level is more than "low level" the electrolyser will remain in Operation Mode.

# 🐞 Known Hardware Bugs

  • Electrostatic discharge into the Wi-Fi antenna, may cause crash Ethernet and modbus.

    Solution: Reboot the electrolyser using cloud (find the device in Enapter Cloud (opens new window) and execute Reset command (Commands > Electrolyser > Reset) or do system power restart (turn off it and restore power back).