Siemens SIMEAS R-PMU Manual page 179

Signal outputs
Four signal outputs are provided for sending messages to an alarm or telecontrol system.
The first signal output (life contact) is firmly connected to the process monitoring circuit
(watchdog) and signals serious faults that prevent the SIMEAS R-PMU from functioning
properly.
The remaining three outputs can be assigned to any error or status messages. Except for the
first one (watchdog alarm), the signal outputs have been designed as NO contacts. That means
that they are open when the device is OFF.
Messages can be combined to form a group alarm by parameterization. The messages
mentioned in Table 13-1 can be allocated to the relays.
One exception is the live contact that is permanently connected to relay 1 and cannot be
changed.
Live contact
Relay 1 (live contact; fixed assignment) provides information about the device status.
Table 13-3
Relay
no.
1 System OK
System malfunction/system OFF
Table 13-4
Relay
no.
2 Device ready for operation
3 Recording active
4 Group alarm
CAUTION
Caution about missing spark suppressor.
Nonobservance of the safety instructions means that moderately
severe or slight injuries can occur.
•
The signal outputs are not equipped with a spark suppressor. Appropriate external
protection measures must therefore be ensured if inductive loads are connected.
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
Relay 1 (live contact)
Message
Preset error and operator messages via relay 2 to 4
Message
13.2 Operator and Error Messages
Remark
Contact open
Contact closed
Remark
Contact closed
Contact closed
Contact closed
13
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