GAS Gasmaster, Installation, Operation And Maintenance Manual

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Supervisor menu
(allows system tests to be performed, and configurations to be changed. cont.
A password is required to enter this mode, see section 3.7 for details.)
Menu system overview
Menu Item Values
(as shown on display)
Description
Relay common Alarm L1 common
Type
Alarm 1 type
Values = Latched
Non-latched
Latch-accept
Drive
Alarm 1 drive
Values =
De-energised
Energised
Alarm L2 common
Type
Alarm 2 type
Values = Latched
Non-latched
Latch-accept
Drive
Alarm 2 drive
Values = De-energised
Energised
Fault common
Type
Fault type
Values = Latched
Non-latched
Drive
Fault drive
Values = De-energised
Energised
Determines the operation of the common alarm and
fault relays.
L1 = Level 1.
L2 = Level 2
Latched means that in an alarm state, the relay will stay
active when the Accept/Reset button is pressed, and will
only reset when the alarm or fault has cleared and the
Accept/Reset button is pressed again.
Non-latched means that the relay will stay active when the
Accept/Reset button is pressed, but will reset automatically
when the alarm has cleared.
Latch-accept means that in an alarm or fault condition the
relay will reset when the Accept/Reset button is pressed.
De-energised means that the relay coil is not energised in
a non-alarm state (normally de-energised).
Energised means that the relay coil is energised in a non-
alarm state (normally energised or ‘fail-safe’)