SUPREMATouch
194
Installation
MSA
US
Fig. 130 MRO 8 TS Module
Relay monitoring
Starting from the version 2.02.06 of the MGO module all relay outputs are supervised on the pres-
ence of all relays. Therefore all 40 outputs of a respective module in the configuration must be
always announced. If at the MRC module not all relay modules are attached, then must be used
an MRD module for each missing modules, so that the relay monitoring does not announce an
error.
The MRD module can be attached directly to the MRC module. The MRD module has LED dis-
plays for the relay condition. Missing ones or defective relay modules are indicated with a red LED
on the MDO module, registered at the same time in the log an error message with „data acquisition
error“.
NOTE: Thus forbids itself for this version the use of the MRO 8 of modules (without mounting rail
assembly).
System Failure Relay
There are two system failure relays on the MIB module, designed as changeover contacts. They
are operated according to the normally energised principle. Both relays are de-energised when a
failure occurs. The terminal contacts are directly next to the relays on the MIB module.
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