11
5.8 Signalling of operating conditions on circuit protector REX12D
The different operating modes of the REX12D are indicated as follows:
Operating condition
LED for signalling
Condition of
load output
channel switched off by momentary
switch
dark
OFF
channel switched on by momentary
switch and switched off by
communication
orange
OFF
channel switched on by momentary
switch and by communication
green
ON
selected threshold value exceeded
blinking green/orange
ON
overload detected
orange
ON
tripped by short circuit
or overload
red
OFF
low voltage detected
red
OFF
fig. 8: Signalling of operating conditions of circuit protector REX12D
6 Basic functions of the entire system
6.1 Internal cycle times
The cycle time via the
ELBus
®
is 530ms. During the aforementioned period the status and the load current of
each circuit protector is cyclically transmitted to Controller EM12D-TMB.
fig. 9: Cycle times of the system
6.2 Hot swap of circuit protectors
The electronic circuit protector REX12D can at any time be mounted side by side with a supply module or an
existing system. By closing the connector arm a voltage supply of the device is available. Also, the device is
connected to the internal
ELBus
®
.
Opening the connector arm is only permitted in the OFF condition. Opening under load can damage
the device or cause undefined system conditions.
After plugging in a circuit protector, it will automatically be identified and parameterised if parameters are
available for the slot in question.
During this procedure the cyclical data will intermittently be marked as
unvalid.
Summary of Contents for EM12D-TMB Series
Page 1: ...Instruction manual Controller EM12D TMB ...
Page 37: ...37 ...
