Infrastructure and Mobility, Traffic Solutions
Sopers Lane, Poole, Dorset
BH17 7ER
Version
7
Page 69 of 76
Status
ISSUED
Last Editor
Ore Oluwatudimu
TS008468
Date
31/01/2017
Document
Name
UPS Solution General Handbook
Doc. No.
667/HB/47750/000
Copyright
Siemens plc 2017 All Rights Reserved
APPENDIX B – FXM UPS Faults and Alarms
Table B-1 below lists all the faults and alarms associated with the Alpha FXM UPS unit.
The relay UPS unit’s ‘Alarm’ contact C5, by default, will trigger when any of the faults or
alarms listed in Table B-1 occur.
Any one of the Faults listed will cause the FXM UPS unit to cease operation
.
Alarms do not affect UPS operation but give warnings that a fault may be imminent.
Name
Description
Faults:
Short_Circuit
The load (controller) has a short
Vout_Hi
The output voltage is above unit specifications
Batt_Hi
Battery packs cannot be charged
Batt_Lo
Battery over-discharge threshold reached
Vout_Lo
The output voltage is below specification
Overload
The UPS unit is overloaded. Switch off excess loads
Backfeed
A relay inside the UPS unit has failed causing a backfeed risk
Bad_Battery
Battery pack voltage is extremely low
Temp_Hi
The UPS Unit is operating above its internal temperature range
Alarms:
Overload
The UPS unit is overloaded. Switch off excess loads
Temp_Hi
The ambient battery temperature is too high
Temp_Lo
The ambient battery temperature is too low
User_Input
The user input contact “User Input: S2” is shorted
Line_Freq
The line frequency is outside the UPS unit’s input specification
No_Temp_Probe
The Battery Temperature Sensor is disconnected or has failed
Weak_Battery
Battery pack has failed the background scan in Line mode
Batt_Low
Battery pack voltage is low
Batt_Brkr_Open
The UPS unit’s Battery Breaker is open
Self_Test
The UPS Unit is performing a self test
Fan_Fail
The UPS unit’s internal fan has failed
Wrong_Softwre
The Alpha UPS Monitor software package is invalid
AC_Brkr_Open
The UPS unit’s Input Circuit Breaker is open
Table B-1: FXM UPS Unit Fault and Alarms
9
Refer to 667/HB/47760/000
10
See sections 8.1 and 9.12 for details on the Battery Temperature Sensor
11
Default value of 47V relating to 40% SOC. Triggers C1. See section 12.2.1
12
See section 10.3
13
See section 12.3.3