32
S&C Instruction Sheet 659-520
Operation
Table 5. PureWave SMS-250 Information Status Alarms—continued
Alarm
Description
Reset Type
SOC Correction
Active
Indicates the PureWave SMS-250 system is conducting SOC
correction
Troubleshooting Tip: No action is required.
SELF
Synchronized to
Utility
Indicates the PureWave SMS-250 system is synchronized to
the utility side of the island circuit breaker
Troubleshooting Tip: No action is required.
SELF
UDM Over Voltage Indicates the RMS line-to-line voltage of any of the three
phases at the inverter ac connection is above the over
voltage threshold
Troubleshooting Tip: The inverter will respond based on
the voltage settings. To make the system less sensitive,
time delay on can be added or the voltage can be
increased.
SELF
UDM Under
Voltage
Indicates the RMS line-to-line voltage of any of the three
phases at the inverter ac connection is under the under
voltage threshold
Troubleshooting Tip: The inverter will respond based on
the voltage settings. To make the system less sensitive,
time delay on can be added or the voltage can be
reduced.
SELF
Utility Good Volt
and Freq
Indicates the utility voltage and frequency are good
Troubleshooting Tip: No action is required.
SELF
VAC Constant
Voltage
Indicates the PureWave SMS-250 system is following a
constant voltage command
Troubleshooting Tip: No action is required.
SELF
VAC Droop
Control
Indicates the PureWave SMS-250 system is following a
voltage droop curve
Troubleshooting Tip: No action is required.
SELF
Warning Alarms
These alarms indicate a problem that may need attention but will not affect the proper
operation of the system. The system will continue to operate when a
Warning
condition
is being displayed. See Table 6 for the listed
Warning
alarms.
Table 6. PureWave SMS-250 Warning Alarms
Alarm
Description
Reset Type
Battery Under
Voltage
Indicates the battery voltage is below the minimum voltage
defined for the battery
Troubleshooting Tip: Ensure the battery is connected
to the PCS by closing the circuit breaker in the battery
container.
SELF
BMS Req SOC
Recalc By Charge
Indicates the battery is requesting to charge so it can
recalculate its state of charge
Troubleshooting Tip: Command a charge so the battery
can reach the top of charge.
SELF
BMS Req SOC
Recalc By
Discharge
Indicates the battery is requesting to discharge so it can
recalculate its state of charge
Troubleshooting Tip: Command a discharge so the battery
can reach the bottom of charge.
SELF
TABLE CONTINUED
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