Woodward MRM4, Manual, Page: 66 / 460

Input, Output and LED Settings
System Contact
The System OK alarm relay (SC) is the devices
»
LIFE CONTACT
«
.
Its installation location depends on the housing
type. Please refer to the wiring diagram of the device (WDC-contact).
The System-OK relay (SC) cannot be parametrized The system contact is an operating current contact that
picks-up, when the device is free from internal faults. While the device is booting up, the System OK relay (SC)
remains dropped-off. As soon as the system was duly started up, the relay picks up and the assigned LED is
activated accordingly (please refer to chapter Self Supervision).
OR-5 X
Direct Commands of OR-5 X
Parameter Description Setting range Default Menu path
DISARMED This is the second step,
after the "DISARMED
Ctrl" has been activated,
that is required to
DISARM the relay
outputs. This will
DISARM those output
relays that are currently
not latched and that are
not on “hold” by a
pending minimum hold
time. CAUTION!
RELAYS DISARMED in
order to safely perform
maintenance while
eliminating the risk of
taking an entire process
off-line. (Note: Zone
Interlocking and
Supervision Contact
cannot be disarmed).
YOU MUST ENSURE
that the relays are
ARMED AGAIN after
maintenance.
Only available if:
DISARMED Ctrl = active
inactive,
active
inactive [Service
/Test
/DISARMED
/BO-5 X2]
Page 66 EN MRM4 01/11