Specifications
RT9 Powershelf    Rectifier Technologies 
158-1806-01.doc 
28  2-Mar-06 
Alarm Name  Comments  LED 
Cell %dev Low  One or more cells being monitored by BCM is too low % deviation from 
the mean battery cell voltage 
A 
Range SMR  SMR parameter range error. MiniCSU-3 could not overwrite values  A 
Site Monitor  Alarm present from the site monitor module. See site monitor menu for 
details of alarm channel. 
A 
Battery Disch  Batteries are discharging  A 
Disch Tst Fail  Battery discharge test failed to reach a programmed end point  A 
Bat Disch Low  Alarm flags only if the system voltage falls below Discharge Alarm level 
while the battery is discharging 
A 
Lo Electrolyte  Alarm generated for NiCad batteries using special sensor and software  A 
SMR Comms Fail  One or more of SMRs are not responding  A 
Amb Temp High  Ambient temperature higher than preset limit  A 
Batt Temp High  Battery temperature higher than preset limit  A 
Batt Temp Sens  Battery temperature sensor not connected or failure  A 
Batt I-Limit  Battery charging current is being limited to preset value  A 
Bat Sym Alarm  Battery discharge currents from battery strings not sharing load equally  A 
Earth Leak Alarm  Earth leakage current greater than the limit set  A 
Equalise  System is in equalise mode  A * 
R = red LED on  A = amber LED flashing  * not flashing 
5.2.4  User programmable relay functions 
Units are shipped with factory default relay assignments (see below). The relay logic of 
the default settings is contact closure on an active alarm. Relay functions can be re-
assigned only from a PC running monitoring program WinCSU-2 (either through the front 
panel USB or remote communications port). Refer to WinCSU-2 Help for instructions. 
Relay Default Assignments 
1 2  3 4 5 
Not Assigned  Not Assigned  HV Shutdown  General Alarm  SMR Shutdown 
Customer Relay Assignments 
(User to complete) 










