SM65 Supervisory Module Handbook
50
Copyright © 2004-2009 Eaton Corporation. All Rights Reserved.
IPN 997-00012-35E December 2009
High Load
The bus voltage is higher than the safe range for the load and/or battery.
In Discharge
The batteries are discharging.
Load Fuse Fail
A load fuse has blown or a load MCB has operated.
Low Aux Temp
The auxiliary temperature sensor is at a temperature below the low temperature
set point.
Low Batt Temp
The battery temperature sensor is at a temperature below the low temperature
set point. This alarm indicates a risk to the standby power system battery as
lower temperatures reduce the battery capacity.
Low Float
The float voltage is below its normal range.
Low Load
The bus voltage is lower than the safe range for the load and/or battery.
LVD1 (or LVD2)
Disconnect**
LVD1 (or LVD2) has disconnected the battery or load.
LVD1 (or LVD2) Fail**
LVD1 (or LVD2) is faulty.
LVD1 (or LVD2)
Manual**
The selector switch of LVD1 (or LVD2) is set to MANUAL CONNECT or
MANUAL DISCONNECT.
MOV Fail
One or more MOV cartridges have failed and must be replaced.
Multiple Rect Fail
Multiple rectifiers are faulty or their AC power has been removed without
causing partial or total AC failure.
No Load
The total rectifier current is less than 2% of the maximum system output current
or is less than 2A.
Partial AC Fail
More than 20% of rectifiers are reporting loss of AC power or loss of a phase.
Rect(s) Comms Lost
Normally this alarm indicates that one or more rectifiers have 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, you can reset it from the keypad before it
triggers an external alarm.
Rect Current Limit
Rectifier(s) in current limit.
Rectifier Fail
A rectifier is faulty or its AC power has been removed without causing partial or
total AC failure. Removal of some types of rectifiers (for example R2048) during
routine maintenance will cause a Rectifier Fail alarm. Rectifier Fail alarm can be
reset from the keypad before it triggers an external alarm.
Rect Over-Temp
Rectifier(s) operating in temperature turndown mode, because of high ambient
temperature or low AC supply voltage.
Sensor Fail
The current, temperature or voltage sensing system is faulty.
SiteSure Missing
An external input or output is mapped in the configuration file but the SiteSure
equipment is not operational or not installed. See Interfacing the SM65 with
SiteSure on page
for details.
System Overload
The power system is operating close to its maximum capacity and more rectifiers
are needed. The System Overload threshold is configurable.
* These alarms only occur if the external AC metering option is fitted. See details on page
** Refer to the Control Function Descriptions on page
for further information on these control
functions.
