Bender RCMS460, Manual, Page: 39 / 104

Operation
39 RCMS460-490_D00067_03_M_XXEN/12.2017
6.3 Working in operating mode
6.3.1 Standard display
In operating mode, you will see a bar graph on the RCMS460…-D display. For
each of the 12 measuring channels, it shows what percentage of the set alarm
value
I
Δ n2
(alarm) and I
Δ n1
(prewarning) has been reached.
For digital inputs 100 % = 1 and 0 % = 0.
The RCMS…-L shows its BMS bus address (e.g. 02). Only the green "Power ON"
LED is lit.
6.3.2 Alarm and its effect
Possible causes of alarm messages:
 
The value falls below or exceeds the set response value or the prewarn-
ing threshold during current or residual current measurement.
 
Digital input closed resp. open
 
Fault measuring current transformer or CT connection fault
 
Device error (see „Display device error“ on page 82)
The RCMS460… signals prewarning and/or alarm:
 
LED "ALARM 1" (prewarning) and/or LED "ALARM 2" (alarm) light
depending on the type of alarm.
 
Associated common alarm relays (C…) switch.
RCMS490… only: Alarm relays of the individual channel switch.
 
An alarm message is being sent on the BMS bus.
100%
50%
k 1 2 3 4 5 6 7 8 9 10 11 12
0%
Channel disabled
Channel enabled
Channel enabled,
current is flowing
(height
≥
2 graduation m
(height = 1 graduation m