GRZ100
11
Relay Setting
The user can input or change settings using the operation
keys on the relay fascia or via a local or remote PC with the
RSM system.
Password protection is provided to change settings.
Eight active setting groups are provided. This allows the
user to set one group for normal operating conditions while
other groups may be set to cover alternative operating
conditions.
Configurable Binary Output Contacts
GRZ100 is provided with 13 to 41 user configurable
normally open output contacts used for indication and alarm.
The number of outputs varies according to the relay model.
Configurable Binary Inputs
GRZ100 is provided with 18 to 28 user configurable binary
inputs.
The number of inputs varies according to the relay model.
PLC Function
GRZ100 is provided with a PLC (Programmable Logic
Control) function allowing user-configurable sequence logics
on binary signals. Configurable binary inputs, binary outputs
and LEDs are programmed by the PLC function.
AUTOMATIC SUPERVISION
Automatic Monitoring Function
The automatic monitoring function will detect failures,
should they occur, that might cause unwanted operation.
The items monitored include the following:
- Analog input circuits
- Analog-to-digital converter
- Watchdog Timer
- Binary output circuits
- DC power supply circuits
- CPU
- Telecommunication circuit
- Relay address monitoring
Automatic Test Function for External
Communication
In the BOP scheme, a signal check-back test function is
provided to check the integrity of the signalling channels.
Alarms
In the unlikely event that a relay failure should occur, this
is detected by automatic monitoring and the LED
ALARM on the relay fascia is illuminated. A binary
“RELAY FAILURE” output is simultaneously operated
and the date/time of any such failure would be stored in
the event record.
PC DISPLAY
Metering
Event record
Fault record
Vector record
Data analysis
