6 Alarms

6.1 Strategy

Warning

Do not reboot eSite x10 before all active alarms are handled.

1. Check the alarm list for the most severe active alarm and follow the instructions for suggested actions.

2. Document your actions.

3. When the issue is resolved, the alarm automatically clears itself and disappears from the alarm list in eSite Web and eSite Tools.

4. If more alarms are active, start from step one with the next alarm.

5. If any alarm is still active and cannot be cleared, contact first line support.

6.2 Alarm management

The Alarm control monitors eSite x10 and its associated systems and trigger alarms. Alarms are indicated in eSite Web and eSite Tools. Some thresholds for alarms are configured via eSite Web and eSite Tools. Alarms are divided into the following types based on severity.

Severity	Description
Fatal	eSite x10 disconnects or has already disconnected customer load due to a severe problem. The equipment can be permanently damaged.
Error	eSite x10 runs at degraded performance but can provide full power to the customer load.
Warning	eSite x10 runs at full functionality but an abnormal event has occurred.
Information	eSite x10 runs at full functionality and a normal event has occurred.

6.3 Connection Compartment LEDs

On the side of the Connection Compartment there are two visual indicators, one green LED and one red LED. The LEDs give an on-site indication of the state of the system. This functionality is optional. See 9.6 Connection compartment LEDs for connection details.

Green	Red	Comment	Suggested action
On	Off	eSite x10 is functional but there can be active alarms. This state is active when none of the two below states are active.	Log in to eSite Web to see if any alarm is active. Solve any active alarms.
Off	Flashing	A serious error has occurred. Genset 1 start alarm and Genset 2 start alarm can trigger this state.	Log in to eSite Web to see what alarm that is active. Solve the active alarms.
Off	On	The customer load is disconnected. LP LVD disconnected and HP LVD disconnected can trigger this state.	Log in to eSite Web to see what alarm that is active. Solve the active alarms.
Off	Off	eSite x10 is off. The LEDs may be broken or do not get power.	For more information see 9.6 Connection compartment LEDs

6.4 Lower Main LEDs

The LEDs on the Lower Main gives information about the system condition

LED	Comment
LED 1	LED 1 Red is flashing if the control system is not running.
LED 2	LED 2 Green ON indicates that the Main controller has booted and is running.
LED 3	Not in use.

6.5 Internal alarm list

This section outlines the defined alarms for eSite x10 and how they are activated/reset, along with a description of possible causes and recommended actions.

6.5.1 Ambient air temperature sensor faulty

Description: The ambient (outside) temperature sensor is not properly connected. See 9.1 Ambient temperature sensor for connection details. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
Temperature sensor or sensor cable is faulty.	Check the ambient air temperature sensor for damages, replace if necessary.	The alarm is triggered on the I/O through the analogue signal cable that connects the temperature cable to the I/O terminal. Outside 3.16 V =–39.94 °C and 0.60 V = 68.24 °C the alarm is triggered.	eSite x10 I/O voltage received is 0 V or 10 V depending on temperature configuration.

6.5.2 Any rectifier failure

Description: Any rectifier reports critical error Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
A rectifier has a critical alarm.	Replace eSite x10 Main Compartment.	Hardware faulty	Main Compartment replaced and communication restored

6.5.3 Battery bank 1 and 2: Current sensor error

Description: Faulty Battery Current sensor placed inside the connection compartment (Optional for dual battery strings). See 9.4 CAN communication and current sensors for connection details. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
- CAN Communication signal cable faulty. - Sensor Hardware failure. - Current sensor option “enabled“ but no sensor installed.	1) Make sure that there are no interruptions on the signal cable. 2) Replace the faulty sensor. 3) Ensure that a sensor is installed.	Sensor Hardware/ Communication failure	Communication with sensor is established, correct current measurement values data.

6.5.4 Battery bank 1 and 2: MCB Tripped

Description: Breaker to battery bank has tripped. Batteries are unable to provide power to eSite x10 and customer load. Only external power sources (genset, grid and solar) can sustain the site. System mode: Enters Safe mode. Genset runs continuously until issue solved. No backup time is available. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
- Battery failures. - MCB faulty. - Communication signal cable faulty. - I/O incorrect configuration.	1) Verify the connection on the I/O terminals. 2) Ensure that the battery fuses are dimensioned for the battery short-circuit and not for the over current. 3) Check / measure the condition of each battery. 4) Ensure that the I/O configuration matches the MCB settings (Normally open / Normally closed). 5) Check the battery breaker for burning marks, short circuit etc. Replace if necessary. 6) Check the battery bank power cable connection. 7) Make sure that there are no interruptions on the signal cable.	The alarm is triggered on the I/O through the Digital signal cable that connects the MCB to the I/O terminal.	eSite x10 I/O voltage received is 24 V or 0 V depending on I/O configuration (Normally open / Normally closed).

6.5.5 Battery charge current sensor error

Description: Battery charge current sensor inside the main compartment has failed. System mode enters Safe mode. Charge request continuous until issue solved. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
Sensor Hardware failure	Replace eSite x10 Main Compartment	Sensor Hardware failure	Main Compartment replaced and communication restored.

6.5.6 Battery Door Open

Description: Battery door open on eSite x10 cabinet. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Cabinet door open. Communication signal cable faulty. I/O incorrect configuration.	1) Check the battery cabinet door on site and close it if it is unintentionally open. 2) Check the battery cabinet door switches for damages. Replace if necessary. 3) Make sure that there are no interruptions on the signal cable. 4) Verify the connection on the I/O terminals. 5) Ensure that the I/O configuration matches the MCB settings (Normally open / Normally closed).	The alarm is triggered on the I/O through the Digital signal cable that connects the battery cabinet door switch to the I/O terminal.	eSite x10 I/O voltage received is 24 V or 0 V depending on I/O configuration (Normally open /Normally closed).

6.5.7 Battery temp: High average

Description: The temperature sensor is placed inside the battery cabinet. The average battery temperature has been high for along duration and the battery bank takes permanent damage if not fixed. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
1) Insufficient cooling of battery cabinet. 2) Fans or AC cooling failure. 3) Filter clogged. 4) Damaged batteries. 5) Damaged battery cabinet 6) Door is open or not closed properly. 7) Insufficient shading of battery cabinet	1) Inspect fans and AC cooling for failure. 2) Inspect filter and replace if dirty. 3) Inspect the batteries for visible injuries/bulges. 4) Inspect cabinet, doors and high power cables for damages. 5) Inspect condition/existence of roof over battery cabinet/ Improve shading over battery cabinet	The alarm is triggered at 37.0°C, the average temperature measured over 1 week.	The alarm trigger temperature conditions are: [x °C – 0.2 °C].

6.5.8 Battery Temp: High

Description: The temperature sensor is placed inside the battery cabinet. Battery temperature is high and the battery bank takes permanent damage if not fixed. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
1) Insufficient cooling of battery cabinet. 2) Fans or AC cooling failure. 3) Filter clogged. 4) Damaged batteries. 5) Damaged battery cabinet 6) Door is open or not closed properly. 7) Insufficient shading of battery cabinet	1) Inspect fans and AC cooling for failure. 2) Inspect filter and replace if dirty. 3) Inspect the batteries for visible injuries/bulges. 4) Inspect cabinet, doors and high power cables for damages. 5) Inspect condition/existence of roof over battery cabinet/ Improve shading over battery cabinet	The alarm is triggered at 42.0°C real-time/ instantaneous measured value.	The alarm trigger temperature conditions are:[x °C – 2.0 °C].

6.5.9 Battery Temp: Very High

Description: The temperature sensor is placed inside the battery cabinet. Battery temperature is very high and the battery bank takes permanent damage if not fixed. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
1) Insufficient cooling of battery cabinet. 2) Fans or AC cooling failure. 3) Filter clogged. 4) Damaged batteries. 5) Damaged battery cabinet 6) Door is open or not closed properly. 7) Insufficient shading of battery cabinet	1) Inspect fans and AC cooling for failure. 2) Inspect filter and replace if dirty. 3) Inspect the batteries for visible injuries/bulges. 4) Inspect cabinet, doors and high power cables for damages. 5) Inspect condition/existence of roof over battery cabinet/ Improve shading over battery cabinet	45 °C (SS) sensor valid	The alarm trigger temperature conditions are:[x – 2.0 °C].

6.5.10 Battery temp: poor cooling performance

Description: Temperature in battery cabinet is significantly larger than outside temp. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
1) Cooling equipment might have stopped working. 2) Insufficient shading of battery cabinet.	1) Inspect cooling equipment and ensure correct functionality. 2) Check if there is a way to increase shading.	12 °C (SS), sensors valid	x - 2 °C

6.5.11 Battery temp sensor faulty

Description: The sensor is not properly connected. The polarity is wrong. See 9.2 Battery temperature sensor for connection details. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
1) Sensor or sensor cable is faulty 2) The battery cabinet temperature is severely high.	1) Make sure that the sensor and sensor cables are not damaged. 2) Check the battery cabinet for possible causes to high temperature.	The alarm is triggered on the I/O through the analogue signal cable that connects the temperature cable to the I/O terminal.	eSite x10 I/O voltage received is 0 V or 10 V depending on temperature configuration.

6.5.12 Battery voltage: limp home

Description: All Voltage sensors has failed. Limp home value of 40V is used. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
System hardware failure	Replace eSite x10 Main Compartment	All Voltage sensors has failed	Main Compartment replaced and voltage measurement restored

6.5.13 Battery voltage: High

Description: Battery voltage is high and the batteries will take permanent damage if issue is not resolved Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
There is another power source connected to the system, which is not controlled by eSite x10.	Check on the site if there is any other power source connected. Disconnect the power source.	Default 60 V. This threshold is temperature compensated according to the battery calibration.	The alarm trigger temperature condition is: x –0.5 V.

6.5.14 Battery voltage: Low

Description: Battery voltage is low and the customer load disconnects if not resolved. eSite x10 is not able to receive sufficient power from the input power sources. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
- Genset failed to start. - Genset failed to produce sufficient power to customer load and battery bank. - Grid not available.	1) See alarm "Genset start: Alarm". 2) Verify genset rating configuration 3) Verify grid max current configuration	Default = 46.5 V(configurable).	Default = 48.5 V(configurable).

6.5.15 Battery voltage sensor faulty

Description: The sensor measuring the battery voltage is faulty. System voltage will be used as a fall back. Connection problem. See 9.3 Battery voltage sensor for connection details. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
- Battery voltage sensor faulty connected. - Reverse polarity. - eSite x10 Main Compartment is not properly docked to the Connection Compartment.	1) Check the sensor installation. 2) Verify the polarity of the sensor cables. 3) Check the Main Compartment connection. 4) Check the fuse on the negative side of the battery voltage sensor cable.	Sensor voltage >70V or <10V	N/A

6.5.16 Connection Compartment Lid Open

Description: Connection Compartment Lid is open. See 9.8 Door switch for connection details. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
- Connection Compartment Lid is open. - Communication signal cable faulty.	1) Check the Connection Compartment Lid on site. Close the Connection Compartment Lid if it is unintentionally open. 2) Check the Connection Compartment Lid switches for damages. Replace if necessary. 3) Check if the signal cable is faulty by checking if there are interruptions on it. 4) Ensure that the I/O configuration matches the MCB settings (Normally open / Normally closed).	The alarm is triggered on the I/O, through the Digital signal cable that connects the Connection Compartment Lid switch to I/O terminal.	The I/O voltage received is 24 V or 0 V depending on the I/O configuration (Normally open / Normally closed).

6.5.17 CPU Temperature Derating

Description: The main CPU frequency is throttled due to high temperature, the maximum rectifier output power has been reduced. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
- High outside temperature (>Nominal Temperature). - Direct sunlight placement. - Close to a heat source. - Dirty heat sink. - Hardware malfunction.	1) Improve the shading over the eSite x10 unit if required. 2) Make sure that eSite x10 is not placed close to a heat source. 3) Clean the heat sink according to section "Maintenance eSite x10" 4) Contact first line support.	Too high internal temperature.	Normal internal temperature.

6.5.18 Database initialization error

Description: eSite Web does not show the correct values, or no values at all, and can show database related errors. Signal data may not be logged on site. Site configuration can be incorrect with default values used instead. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
- Error in databases. - Trying to access eSite Web too soon after a reboot.	1) Reboot main controller to restore database. 2) Press the "Factory reset" button, see 4.9.15 Shutdown/Restart	Database Open/read/write error	No errors at init.

6.5.19 Expansion Load total: Max power

Description: Total load is higher than the rated value on the expansion unit, see data sheet. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Customer is drawing more power than configured on expansion unit.	1) Measure the total power of the load connected to eSite x10 on site. 2) Reduce the total system power drawn. 3) Balance load more evenly between master and expansion unit	Default load = 10 kW for 10 sec (configurable).	The alarm trigger temperature conditions are: x– 100 W.

6.5.20 Expansion High priority bypass MCB: Engaged

Description: The Main Compartment is bypassed and HP load receives power directly from the battery bank. The function is used when replacing the Main Compartment. Batteries can take permanent damage as the batteries cannot be disconnected from the load with the LVD contactors. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– Expansion unit's Main Compartment is being replaced. - Misuse of the bypass functionality.	Check why the bypass breaker is tripped, disengage the bypass breaker when the issue is solved.	The alarm is triggered on the I/O through the Digital signal cable that connects the bypass breaker indication to the I/O terminal.	eSite x10 I/O voltage received is 24 V.

6.5.21 Expansion Low priority bypass MCB: Engaged

Description: The expansion unit Main Compartment is bypassed and LP load receives power directly from the battery bank. The function is used when replacing the Main Compartment. Batteries can take permanent damage as the batteries cannot be disconnected from the load with the LVD contactors. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– Expansion unit Main Compartment is being replaced. - Misuse of the bypass functionality.	Check why the bypass breaker is tripped, disengage the bypass breaker when the issue is solved.	The alarm is triggered on the I/O through the Digital signal cable that connects the bypass breaker indication to the I/O terminal.	eSite x10 I/O voltage

6.5.22 Expansion battery charge current sensor error

Description: Battery charge current sensor inside the expansion unit main compartment has failed. System mode enters Safe mode. Charge request continuous until issue solved. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
Sensor Hardware failure	Replace eSite x10 Main Compartment	Sensor Hardware failure	Main Compartment replaced and communication restored.

6.5.23 Expansion IO communication failure

Description: Communication to expansion unit I/O controller has failed, eSite x10 is not able to read I/O signals. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
I/O hardware fail.	Replace eSite x10 expansion unit Main Compartment.	No communication response from I/O.	Main Compartment replaced and communication restored.

6.5.24 External solar current sensor faulty

Description: The sensor used to measure the external solar is faulty Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Current sensor is damaged. Sensor is not connected.	Check connections for current sensor. Replace sensor	N/A	N/A

6.5.25 Fuel monitor 1-2: Fuel filled

Description: Genset tank has been filled. Severity: Information

Possible cause	Suggested action	Trigger condition	Reset condition
Fuel tank has been refilled	N/A	4 % fuel increase is detected between a rolling period of 1800 sec.	The alarm will reset it self within one hour after the filling was detected.

6.5.26 Fuel monitor 1-2: Fuel lost

Description: The fuel sensor is detecting a sudden fuel loss. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Fuel theft or leakages.	Check the fuel tank and the fuel sensor on site.	4 % fuel decrease is detected between a rolling period of 1800 sec.	Resets itself after a refill.

6.5.27 Fuel monitor 1-2: Low level

Description: Fuel is below the setup low volume threshold Severity: Information

Possible cause	Suggested action	Trigger condition	Reset condition
Not enough fuel in the tank.	Refill diesel	Default value: below 300 litres(configurable).	Default value: 300 + 20 litres(configurable).

6.5.28 Fuel monitor 1-2: Sensor out of range

Description: Sensor measurements are outside its specified voltage range. See 9.5 Fuel sensors for connection details. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
- The Fuel Sensor is disconnected. - The Fuel Sensor is not installed correct. - The Fuel Sensor is faulty.	1) Check sensor installation. 2) Check the sensor polarity. 3) Verify the sensor configuration. 4) Check if the sensor is faulty.	The alarm is triggered on the I/O, through the analogue signal cable that connects the fuel sensor to the I/O terminal.	eSite x10 I/O voltage received is 0 V or 10 V depending on fuel sensor configuration.

6.5.29 Fuel monitor 1-2: Very Low level

Description: Fuel Sensor measurements are below the very low volume threshold. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Not enough fuel in the tank.	Refill fuel	Default value: below 200 litres(configurable).	Default value: 200 + 20 litres(configurable).

6.5.30 Genset 1-2 communication error

Description: Modbus Communication to genset panel has failed and eSite x10 is unable to read data from the genset. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
- Communication cables between eSite x10 and genset are damaged. - Genset start battery is empty. - Incorrect Genset Modbus settings.	1) Check the communication cables from eSite x10 to genset for damage. 2) Check the genset and repair if required. 3) Ensure that eSite x10 genset Modbus configuration matches the genset control panel settings.	No communication response from genset.	Restored communication.

6.5.31 Genset 1-3 external alarm 1-3: Tripped

Description: Genset external alarm has tripped Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Alarm depending on Genset type and IO.	1) Check the genset to make sure it is not damaged. 2) Make sure that there are no interruptions on the signal cable. 3) Ensure that the I/O configuration matches the MCB settings (Normally open / Normally closed).	No communication response from genset.	Restored communication.

6.5.32 Genset 1-2 Failed to Start

Description: Genset does not start on command. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
- Genset battery empty or faulty. - No fuel. - Genset alarm. - Communication to genset controller broken. - Power cable between eSite x10 and genset are faulty. - The genset is manually forced to start by someone on site.	1) Check the genset battery and generator system. Charge battery if necessary. 2) Fill up fuel. 3) Check and reset error in genset.	No voltage from genset is detected by eSite x10 for 5 min.	The alarm resets when the input genset voltage is detected.

6.5.33 Genset 1-2 Failed to Stop

Description: Genset does not stop on command. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
Genset is manually forced to run by pressing the start button on the genset panel.	1) Make sure that the genset is in auto mode / remote control mode. 2) Verify the start signal from eSite x10 to genset.	Genset is commanded off but eSite x10 is still detecting voltage for 5 min.	Genset is commanded off and no voltage has been received for 1 min.

6.5.34 Genset 1 or 2 is running

Description: A genset is running. Severity: Information

Possible cause	Suggested action	Trigger condition	Reset condition
eSite x10 started a genset.	N/A	Any genset is running	N/A

6.5.35 Genset 1-2 maintenance timer: Expired

Description: Time limit for genset maintenance has expired. Scheduled Hours to maintenance. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Maintenance has not been performed.	Perform genset maintenance according to genset documentation.	Default 0 hours left to maintenance.	The timer for genset maintenance is reset.

6.5.36 Grid not available

Description: Input Power from grid is not available. Voltage is out of range 85 – 300 V. Frequency is out of range 45 – 65 Hz. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
– Grid power temporarily out. - Grid breaker tripped.	1) Check if the grid provides power. 2) Check grid breaker. Repair if necessary.	AC Voltage and frequency input is out of range for 10 sec.	AC Voltage and frequency input is in range.

6.5.37 High Priority Bypass MCB: Engaged

Description: The Main Compartment is bypassed and HP load receives power directly from the battery bank. The function is used when replacing the Main Compartment. Batteries can take permanent damage as the batteries cannot be disconnected from the load with the LVD contactors. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– Main Compartment is being replaced. - Misuse of the bypass functionality.	Check why the bypass breaker is tripped, disengage the bypass breaker when the issue is solved.	The alarm is triggered on the I/O through the digital signal cable that connects the bypass breaker indication to the I/O terminal.	eSite x10 I/O voltage received is 24 V.

6.5.38 High priority load: Disconnected

Description: High priority customer load is disconnected due to low voltage. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– System voltage has dropped below threshold. - No incoming power to eSite x10 is available.	Make sure that the power sources are working.	Default 43.5 V.	Default 48 V.

6.5.39 High priority load: High power

Description: Total high priority load is higher than the rated value, see data sheet. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
– The customer load is not installed correct. - Incorrect use of High priority load and Low priority load.	1) Verify customers connection at site. 2) Consult the Installation manual for correct use of High priority power and Low priority power.	1.5 kW for 10 sec	x – 100 W

6.5.40 I/O communication failure

Description: Communication to I/O controller has failed, eSite x10 is not able to read I/O signals. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
I/O hardware fail.	Replace eSite x10 Main Compartment.	No communication response from I/O.	Main Compartment replaced and communication restored.

6.5.41 Load tenant 1-3: Max power

Description: Max total power load threshold is reached. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Tenant is drawing more power than configured.	1) Check/measure the total power load connected to eSite x10 on site. 2) Reduce the total power drawn from the system.	Default load = 5kW for 10 sec(configurable).	Alarm trigger temperature conditions are: x– 100 W.

6.5.42 Load total: Max power

Description: Max total power load threshold is reached. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Customer is drawing more power than configured.	1) Check/measure the total power load connected to eSite x10 on site. 2) Reduce the total system power drawn.	Default load = 10 kW for 10 sec (configurable).	The alarm trigger temperature conditions are: x– 100 W.

6.5.43 Low IO voltage expansion LP and HP

Description: System voltage is below 42 V and the HP load has been disconnected using the LVD contactor. Severity:

Possible cause	Suggested action	Trigger condition	Reset condition
No incoming power to eSite x10 expansion unit is available.	Make sure that the power sources are working. Alarms triggered before could be: 'Genset failed to start' or 'Grid not available'.	System voltage has dropped below threshold.	Alarm manually cleared.

6.5.44 Low I/O Voltage HP and LP

Description: System voltage is below 42 V and the HP load has been disconnected using the LVD contactor. Severity:

Possible cause	Suggested action	Trigger condition	Reset condition
No incoming power to eSite x10 is available.	Make sure that the power sources are working. Alarms triggered before could be genset failed to start or grid not available.	System voltage has dropped below threshold.	Alarm manually cleared.

6.5.45 Low Priority Bypass MCB: Engaged

Description: The Main Compartment is bypassed and LP load receives power directly from the battery bank. The function is used when replacing the Main Compartment. Batteries can take permanent damage as the batteries cannot be disconnected from the load with the LVD contactors. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– Main Compartment is being replaced. - Misuse of the bypass functionality.	Check why the bypass breaker is tripped, disengage the bypass breaker when the issue is solved.	The alarm is triggered on the I/O through the Digital signal cable that connects the bypass breaker indication to the I/O terminal.	eSite x10 I/O voltage received is 24 V.

6.5.46 Low priority load: Disconnected

Description: Low priority customer load has been disconnected due to low battery voltage. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– System voltage has dropped below threshold. - No incoming power to eSite x10 is available.	Make sure that the power sources are working.	45 V + 300 sec	The load is reconnected when battery voltage is above 48 V and produced current from the rectifiers is 30 A within 30 sec or battery voltage is above 52 V.

6.5.47 Over Current expansion: High priority

Description: The expansion HP load current has exceeded 180 A. The expansion HP load is disconnected using the LVD contactor. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– Customer draws a higher power than allowed - Short circuit on site.	1) Check/measure on site the total power load connected to the eSite x10. Reduce load if too high. 2) Check the customer equipment and connection.	Current exceeds threshold.	Alarm is manually cleared.

6.5.48 Over Current expansion: Low priority

Description: The expansion LP load current has exceeded 180 A. The expansion LP load is disconnected using the LVD contactor. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– Customer draws a higher power than allowed - Short circuit on site.	1) Check/measure on site the total power load connected to the eSite x10. Reduce load if too high. 2) Check the customer equipment and connection.	Current exceeds threshold.	Alarm is manually cleared.

6.5.49 Over Current: High priority

Description: The HP load current has exceeded 180 A. The HP load is disconnected using the LVD contactor. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– Customer draws a higher power than allowed - Short circuit on site.	1) Check/measure on site the total power load connected to the eSite x10. Reduce load if too high. 2) Check the customer equipment and connection.	Current exceeds threshold.	Alarm is manually cleared.

6.5.50 Over Current: Low priority

Description: The LP load current has exceeded 180 A. The LP load is disconnected using the LVD contactor. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
– Customer draws a higher power than allowed - Short circuit on site.	1) Check/measure on site the total power load connected to the eSite x10. Reduce load if too high. 2) Check the customer equipment and connection.	Current exceeds threshold.	Alarm is manually cleared.

6.5.51 Rectifier 1-6: Communication failed

Description: Communication to rectifier controller has failed. The rectifier may not deliver power. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
Rectifier hardware fail.	Replace eSite x10 Main Compartment.	No communication response from rectifier.	Main Compartment replaced and communication restored.

6.5.52 Rectifier 1-6: High Temp power reduced

Description: Due to high internal temperature, the maximum rectifier output power has been reduced. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
– High outside temperature (>Nominal Temperature). - Direct sunlight placement. - Close to a heat source. - Dirty heat sink. - Hardware malfunction.	1) Improve the shading over eSite x10 if required. 2) Make sure that eSite x10 is not placed close to a heat source. 3) Clean the heat sink according to section "Maintenance eSite x10" 4) Contact first line support.	To high rectifier internal temperature.	Normal rectifier internal temperature.

6.5.53 Rectifier 1-6: Internal critical error

Description: Rectifier does not supply power. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
Rectifier hardware fail.	Replace eSite x10 Main Compartment.	Hardware faulty	Main Compartment replaced and communication restored.

6.5.54 Solar 1-6: Array voltage High

Description: Solar converter measures the input voltage above the threshold in the data sheet. The array has too high voltage. No solar power is produced. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
Incorrect solar panel installation.	Measure the array voltage and ensure that not too many panels are connected in series, thereby exceeding the array voltage range.	Voltage exceeding the threshold.	Automatically cleared when trigger condition is solved. System check every 10 min.

6.5.55 Solar 1-6: Array voltage negative

Description: Reversed polarity. Solar panel minus terminal may be connected to ground. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
Faulty connected solar array.	1) Measure voltage to see the polarity of the array. 2) Check the connection cables.	Reversed polarity detected.	Automatically cleared when trigger condition is solved. System check every 10 min.

6.5.56 Solar 1-6:Communication failed

Description: Communication to solar converter has failed. eSite x10 is not able to read solar signals. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
Solar converter hardware fail.	Replace eSite x10 Main Compartment.	No communication response from solar converter.	Main Compartment replaced and communication restored.

6.5.57 Solar converter 1-6: Internal critical error

Description: Solar converter does not supply power. Severity: Fatal

Possible cause	Suggested action	Trigger condition	Reset condition
Solar converter hardware fail.	Replace eSite x10 Main Compartment.	Hardware faulty.	Main Compartment replaced and communication restored.

6.5.58 Solar volt offset calibration error

Description: Any of the solar converters measures its voltage ±1V compared to system voltage. severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
Solar hardware fail	If the solar voltage is higher than system voltage, the system will still be safe and run at degraded performance. If the solar voltage is lower than system voltage the batteries might become overcharged witch can be unsafe and shorten the lifetime of the batteries. Ask a Flex admin to check this in diagnostics tab.	Any of the solar converters measures its voltage ±1V compared to system voltage	Voltage diff <± 1V

6.5.59 Surge Protection 100 kA: Tripped

Description: External Surge protection for genset/grid 100 kA has tripped. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
Over voltage from genset or grid has tripped the surge protection (SPD).	1) Check if surge protection has tripped, replace if necessary. 2) Check signal cables between I/O and the surge protection (SPD).	The alarm is triggered on the I/O through the Digital signal cable that connects the surge protection indication to the I/O terminal.	eSite x10 I/O voltage received is 24 V.

6.5.60 System voltage sensor faulty

Description: Sensor measuring the internal voltage in Main Compartment has failed. Voltage measurement from the rectifier or solar converters is used instead. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
Sensor hardware failure.	Contact first line support.	Sensor hardware failure.	Alarm is manually cleared.

6.5.61 Tenant 1-3 Current Sensor Faulty

Description: The sensor measuring the tenant current is invalid. Severity: Warning

Possible cause	Suggested action	Trigger condition	Reset condition
– CAN communication signal cable faulty. - Sensor hardware failure. - Current sensor option enabled but no sensor installed.	1) Make sure that there are no interruptions on the signal cable. Replace if necessary. 2) Verify that there is a sensor installed. 3) Check the ID of the current sensor. 4) Make sure the sensor is not damaged. Replace if necessary. 5) Check the configuration to match installed sensors.	Sensor hardware /Communication failure.	Communication with sensor is established, correct current measurement values data.

6.5.62 Voltage sensors not matching

Description: The values of the battery voltage sensor and the system voltage sensor measurements are not matching. The voltage difference has exceeded a predefined threshold. Severity: Error

Possible cause	Suggested action	Trigger condition	Reset condition
– Fuse on the negative battery probe has tripped. - Battery voltage sensor inside the battery cabinet faulty connected on the batteries. - Battery cables faulty connected either onto the Connection Compartment or onto the battery cabinet. - Battery breaker is tripped.	1) Make sure that the battery breaker is engaged. 2) Check the fuse for damages. Replace if necessary. 3) Check the voltage sensor and battery cables for damages. Measure the voltage on the connection compartment side and the battery bank with a multimeter. Compare the voltage values to make sure they have the same value. 4) Check the battery cables, nuts and bolts for burn marks. Replace if necessary.	Voltage diff >2 V. Depending on the temperature and the current in the battery cables.	Voltage diff <1 V

6.6 External alarm list

External alarms are communicated from external sources like Genset or Lithium-ion batteries and can be forwarded to the user by eSite x10. To receive this type of alarms, a communication are required to the source.

6.6.1 Genset

To receive Genset alarms, a Modbus communication is required to the AMF panel, see Appendix how to install it.

The following alarms can be configured for Genset 1 and 2, in the local eSite Web configuration page:

• HighBatteryVoltage

• LowBatteryVoltage

• ChargerAcFailure

• FailToStart

• FailToStop

• LowCoolantTemperature

• HighCoolantTemperature

• LowOilPressure

• OverSpeed

• LowFuelLevel

• HighAcVoltage

• LowAcVoltage

• UnderFrequency

• Overload

• Overcurrent

• ShortCircuit

• ReverseKW

• ReverseKVAR

• FailToClose

• EmergencyStop

• OilPressureSwitch

• CoolantTemperatureSwitch

• FuelLevelSwitch

• WarningAlarmActive

• ElectricalAlarmActive

• ShutdownAlarmActive

• ControlUnitFailure

• ControlUnitNotConfigured

• Alarm1

• Alarm2

• Alarm3

6.6.2 Lithium-ion batteries

The alarms communicated from Li-ion batteries differ between the various manufacturers. Each supported battery has its own list of alarms which is configured in the eSite x10 when the specific battery is selected in the local web configuration page.

See Appendix how to install and configure a Li-ion battery.

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