PCME STACK 990 - 6.10 Relay Settings

- PCME STACK 990 MANUAL: 45 -
6.10 Relay Settings
The Relays Settings function assigns the use of the alarm relay both within the control unit and
from additional Relay Output Modules. The Multi Controller has four relay outputs (The Interface
Module has two relay outputs). Additional relay outputs can be supplied by including one or more
Relay Output Modules (ROM) at any point in the sensor network (8 outputs per module).
Alternatively an optional output board may be added to the DT990 sensor to provide a local relay
output.
Multicontroller and Interface Module Relays
The default use for the relays is detailed below:
Relay 1 Comms Alarm (e.g. caused by faulty wiring to the sensor)
Relay 2 Limit Alarm from any channel/sensor (either instantaneous or average)
Relay 3 Warning Alarm from any channel/sensor (either instantaneous or average)
Relay 4 Self Test Fail Alarm (e.g. caused by contamination of a sensor)
Only Relay 1 and 2 are available on the Interface Module.
Select ‘Setup’ display
Menu route:
Relay Settings
The relay default settings are global to all channels. i.e. relay 2 will trigger if any channel
generates a Limit Alarm.
Relays can be assigned to individual channels/sensors and the alarm types can be user specified.
Relay Settings
Alarm Type
1
2
3
Comms Error
Limit Alarm
Warning Alarm
Back
4
Self Test Fail
All devices
All devices
All devices
All devices
Device