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INM MTL SUM5 Rev 7
DRAFT - 09 June 2021 DRAFT - 09 June 2021
17.9 Group A - GPA
The default setting for this relay is Group A / GPA, the relay is normally de-energised and provides a
congurable contact for use with 3rd party devices. The relay will activate on alarm and will return
to normal after the process has returned to normal and the alarm has been cleared. The relay must
be assigned to a group and the group type needs to be set as “Alarm” for the relay to operate
correctly.
• A latching Relay is used for the Group Relay function allowing the contact state can be set
to Normally Open or Normally Closed by selecting the required feature using
the Drop-down menu shown next to the coil status eld.
17.10 Group B - GPB
The default setting for this relay is Group B / GPB, the relay is normally de-energised and provides
a congurable contact for use with 3rd party devices. The relay will activate on alarm and will
return to normal after the process has returned to normal and the alarm has been cleared. The
relay must be assigned to a group and the group type needs to be set as “Alarm” for the relay to
operate correctly.
• A latching relay is used for the Group Relay function allowing the contact state can be set
to Normally Open or Normally Closed by selecting the required feature using the Drop-
down menu shown next to the coil status eld.
17.11 Optional Settings
The following options apply to any of the common relays.
17.12 Assigning Relays to Groups
Any relay can be set to follow any group within the annunciator using the drop down menu.
17.13 Reash Function
When using the GPA or GPB common alarm relays a reash function can be used to indicate that
multiple alarms are occurring within the group. When an alarm within the group activates the relay
will change state and each time a new alarm occurs within the same group the relay will revert to
normal and reactivate, (Reash). The drop-down menu which allows selection of the group includes
selection of the group and reash as an option.
17.14 Disable in System Test
A relay can be prevented from operating during System Test by selecting the “Disable in System
Test” check box shown on the previous page. For example you may not need the audible to sound
during system test, this feature allows the user to disable the relay during the test cycle.
17.15 Disable in Sleep Mode
Sleep mode is an optional setting which allows the user to disable the visual, audible and common
relays during unmanned periods.
A relay can be prevented from operating whilst the annunciator is in sleep mode by selecting the
“Disable in Sleep Mode” check box shown above. For example you may wish to disable the horn
relays but allow the common alarm relays to continue to operate as normal during unmanned
periods.