Copyright © 2005
– 2021 R. STAHL TRANBERG AS. All rights reserved. Page 30 of 38
Current supervision
Relay modules with current supervision will detect that current is present or missing,
while the output is turned on. This may be due to a brok en fuse or lamp, and a
message will be sent to the Master CPU for further actions.
Current is measured using a in-line resistor for low-voltage applications (<30VDC) and
two diodes in antiparallel for high voltage applications (230VAC)
Analog output modules
Outputs
The analog output module is a combined dimmer and flasher unit. It can operate in both
modes, depending on setting and commands sent to it from the Master CPU.
Manual operation
Outputs can be set manually. Before changing any settings, make a not e of the original
setting of the MSB and LSB rotary switches. Incorrect setting at a later stage may
impair the system.
For dimmer function, set the MSB rotary (address) switch on the module to 6.
For flasher function, set the MSB rotary (address) switch on the module to 7.
Disconnect power to the module for a few seconds, and then reconnect.
Set the LSB rotary (address) switch on the module according to this table:
LSB:
Dimmer level
(%)
Flasher rate
(blink / min.)
0
0 (off)
0 (off)
1
15
30
2
30
60
3
45
90
4
60
120
5
75
260
6
90
180
7
100 (max)
200
Note, LSB=0: Depending on load, dimmer level may not be completely off.
To reset modules back to normal operation, set MSB and LSB switches as they were
initially.
Current supervision
Current supervision is available on all versions. The current supervision may also be
switched off if needed. Prior to such operations, remove the label that is positioned
across the MSB and LSB rotary switches on the module, and make a note of the
original setting. Incorrect setting at a later stage may impair the system.
Do as follows:
If the MSB rotary (address) switch on the module was set at 0, set it to 4.
If the MSB rotary (address) switch on the module was set at 1, set it to 5.
Disconnect power to the module for a f ew seconds, and then reconnect. The
module will work as before but the current supervision will be turned off.
