TWINFLEX
®
pro² Control Panel Engineering and Commissioning Manual
16
Fault Relay: C, N/C, N/O
The fault relay is derived from a single pole change over ‘volt-free’ relay contact which is not fault
monitored. The fault relay output is rated at 30V DC 1A max. Inductive loads should be diode protected
(eg. using a 1N4004 diode) to prevent back EMF causing damage to the relay contact.
The default setting for the fault relay causes the relay to operate as a Common Fault output where the
relay is de-energised in the fault condition and will remain so until the fault is cleared.
Fire Relay: C, N/C, N/O
The fire relay is derived from a single pole change over ‘volt-free’ relay contact which is not fault
monitored. The fire relay output is rated at 30V DC 1A max. Inductive loads should be diode protected
(eg. using a 1N4004 diode) to prevent back EMF causing damage to the relay contact.
The default setting for the fire relay causes the relay to operate as a Common Fire output where the
relay is energised in the fire condition and will remain so until the system is reset.
Mains Input Wiring
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