System 9000TS
39
Power Failure Monitoring:- PF
RL5 can be configured to monitor the 24VDC logic supply and/or signal supply.
The relay will de-energise if the associated supply fails. Links LK9, LK10 and LK11 are
provided on the P925TS-X Interface Card to allow the user to select: -
LINK POSITION
FUNCTION
LK9
ON
Loss of the 24VDC logic supply will de-energise the relay.
OFF Disabled
LK10
ON
Loss of the signal supply will de-energise the relay.
OFF Disabled
LK11
ON
Signal Supply Monitoring level is set to 24V AC/DC
OFF
Signal supply Monitoring level is set to 110V AC/DC
1 2 3 4
SW1
OFF
ON
ON
OFF
ON
OFF
24V
110V
CONTACT
VOLTAGE
POWER
FAIL
1
HORN A
DE-EN
EN
2
HORN B
DE-EN
EN
3
GROUP A
EN
DE-EN
4
GROUP B
EN
DE-EN
OFF
ON
SW1-
24V
125V
OFF
ON
OFF
ON
ENABLE
POWER-FAIL
MONITORING
ENBALE
SIGNAL-FAIL
MONITORING
SIGNAL
MONITOR
LEVEL
LK9
LK9
LK10
LK10
LK11
LK11