Multilink EB1s, Installation And Operation Manual

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Issue 13 (11/14/2017)
7.4 Troubleshooting
The troubleshooting guide has been designed to help you quickly locate and resolve common power supply
problems. If you still cannot solve the problem, replace the power supply with a known good unit.
Condition Check
No output to load
Batteries connected
AC line power present Output connector plugged in
Battery voltage within limits
AC utility voltage present and within limits
Incorrect output voltage
Batteries connected
AC line power present Check output voltage and current displays.
Check output connector and connections to cable plant.
Batteries will not charge
Batteries connected
AC line power present Battery breaker tripped
Battery terminals and connectors
Battery failure
Batteries not properly charged
Batteries connected
AC line power present Verify connection of battery cable
Verify charger mode at front panel
Measure charge voltage (Bulk, Equalize, Float)
Alarm Conditions
Major Alarms:
Cause Corrective action
Configuration Fault System configuration does not match detected operating conditions Contact Multilink
Inverter Fault System has detected that the inverter current is too high Remove cause of overcurrent, restart UPS,
replace inverter if damaged
Sleep Mode Fault In standby, batteries have discharged to the shutdown value Restore line voltage, charge batteries
High Line Voltage System has detected that the Line Voltage exceeds specifications Remove cause of overvoltage
Battery Test Fail In Test Mode, batteries have discharged to the shutdown value Recharge or replace batteries
Inverter Overtemp Inverter temperature exceeds 90°C Place unit in environment that meets factory
specifications, replace UPS if damaged
Out 1 Over Current Output 1 current has exceeded setpoint by more than 1A Reduce load
Out 2 Over Current Output 2 current has exceeded setpoint by more than 1A Reduce load
Missing Batteries System has detected that the battery string is disconnected Reconnect batteries
Low Battery Voltage System has detected that the battery string voltage is too low Recharge or replace batteries
High Battery Voltage System has detected that the battery string voltage is too high Check batteries, replace inverter if damaged
Out 1 Short Circuit A short circuit has been detected on output 1 Reduce load, check for short circuit
Out 2 Short Circuit A short circuit has been detected on output 2 Reduce load, check for short circuit
Out 1 Fault Disable Optional Smart Breaker has shutdown output 1 Reduce load, check for short circuit, clear
fault
Out 2 Fault Disable Optional Smart Breaker has shutdown output 2 Reduce load, check for short circuit, clear
fault
Minor Alarms:
Cause Corrective action
No Temperature Probe Battery temperature probe is disconnected or inoperative Connect or replace temperature probe
Line Voltage Fail Utility line voltage has failed and power supply is in standby Restore utility line voltage
Out 1 Over Current Output 1 current has exceeded setpoint by less than 1A Reduce load
Out 2 Over Current Output 2 current has exceeded setpoint by less than 1A Reduce load
Global Over Current Total output current has exceeded setpoint Reduce load
Inverter Overtemp Inverter temperature exceeds 75°C but is less than 90°C Monitor condition