Siemens SIMEAS R-PMU, Manual, Page: 179 / 296

13
13.2 Operator and Error Messages
179
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
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 13-4 Preset error and operator messages via relay 2 to 4
Table 13-3 Relay 1 (live contact)
Relay
no.
Message Remark
1 System OK Contact open
System malfunction/system OFF Contact closed
Relay
no.
Message Remark
2 Device ready for operation Contact closed
3 Recording active Contact closed
4 Group alarm Contact closed
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.