SC100 Handbook
64
Copyright © 2008-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-63C August 2011
Bus Voltage Sensor Fail
The system bus voltage (as measured by the bus voltage sensor) is more than from
2.0V away from the corrected average rectifier output voltage.
If the bus voltage sensor has failed, the system bus voltage is determined from the
rectifier output voltages.
Characterizing Battery
The Battery Characterization control process is active. See Battery Characterization
on page
Config Error
Configuration file is missing or invalid, installed rectifiers have different nominal
output voltages, or the number of cells in a battery string entered in the
configuration file does not match the nominal rectifier output voltage. See
Troubleshooting on page
Current Sensor Fail
The signal from a mapped current sensor is out of range.
Equalize
The Equalize control process is active. See Equalize on page
Fast Charge
The Fast Charge control process is active. See Fast Charge on page
High Float
The bus voltage is above its normal range (set by the
High Float Threshold
).
High Load
The bus voltage is higher than the safe range for the load and/or battery (set by the
High Load Threshold
).
In Discharge
The batteries are discharging (indicated by negative battery current).
Load Fuse Fail
A load fuse has blown or a load circuit breaker has operated (indicated by an active
digital input with
Function
"Load Fuse Fail").
Low Float
The bus voltage is below its normal range (set by the
Low Float Threshold
).
Low Load
The bus voltage is lower than the safe range for the load and/or battery (set by the
Low Load Threshold
).
LVD Characterization Error
An LVD contactor must be characterized. See Low Voltage Disconnect on page
LVD Disconnected
An LVD contactor has disconnected the battery or load. See Low Voltage Disconnect
on page
LVD Fail
An LVD contactor is faulty or the control cable from the I/O board is disconnected.
See Low Voltage Disconnect on page
LVD Manual
An LVD is set to MANUAL CONNECT or MANUAL DISCONNECT. See Low
Voltage Disconnect on page
Missing Hardware
The SC100 has lost communication with the I/O board.
Monitor Fail
The SC100 has an internal fault.
MOV Fail
One or more MOV cartridges have failed and must be replaced (indicated by an
active digital input with
Function
set to "MOV Fail").
Multiple Rectifier
Comms Lost
More than one rectifier has lost communications. See also Rectifier Comms Lost on
page
Multiple Rectifier Fail
Multiple rectifiers are faulty or their ac supply has failed without causing partial or
total ac supply failure.
Partial AC Fail
A digital input with
Function
set to "Phase Fail" is active, or more than 20% of single-
phase rectifiers are reporting ac supply failure, or all 3-phase rectifiers are reporting
loss of the same phase.
Rectifier Comms Lost
Normally this alarm indicates that a rectifier has been removed during routine
maintenance. However, faulty rectifier communications or losing the rectifier
communications bus can also trigger this alarm. If removing multiple rectifiers
triggers this alarm, reset it from the keypad before it triggers an external alarm.
Summary of Contents for SC100
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