IMD 100 Integration manual 4189360015 Rev. G
Electrical HW connections and requirements
Page 51 of 243
SCI 1.1
SCI 1.2
SCR 1.1
SCR 1.2
IMD
0V DC
+ 24 V DC
SCI 2.1
SCI 2.2
SCR 2.1
SCR 2.2
0V DC
+ 24 V DC
Figure 31
Safety-chain input connections when safety-chain is not used
5.5.2.2 Additional relay output
The relay output RO has the same characteristics as the safety-chain relays. It is protected with a PTC
multi-fuse (0.5 A). If the current exceeds the fuse value, the fuse will heat up and disconnect the
output. When the fuse is cooled down, it will automatically reconnect the output. This relay output is a
distributed output that can be used for any purpose.
The output RO relay contacts have the following HW specifications:
Maximum voltage
30 V DC
Maximum current
0.25 A DC
5.5.2.3 Digital outputs
There are eight digital outputs that can be used for any purpose. The outputs are supplied from X8
supply (terminals 11 and 20).
Attention
The safety-chain inputs must be connected no matter if safety chain is used or not. See
for detailed information of how to connect the safety-chain inputs
when the safety chain is not used.
Info
IMD version B only:
One of the outputs between DO5 to DO8 must be used
for the fan (DO 8 is recommended to be used). The fan wires (1) are routed
through the heat sink to the left of the R-ballast.
1