ERL F-PRO 5100, User Manual

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Appendix D Event Messages
D02416R04.00 F-PRO 5100 User Manual Appendix D-3
Details of Failure
Modes
Laptop or
Remote Connection
DSP
Digital Signal
Processor
X86
Micro-
processor
Watch-dog
F-PRO Relay
Watch-dog
Inputs
Outputs
User
DSP
Failure
"RELAY FUNCTIONAL"
on front panel goes
from green to off
The Master Relay is de-
energized. Two of its
contacts open, discon-
necting all power to the
other auxiliary relays. A
separate contact labelled
"RELAY INOPERATIVE"
on the rear panel closes
to activate a remote alarm.
The watch-dog repeatedly
attempts to re-start the DSP
for diagnostic purposes. The
green light stays off and the
relays remain de-energized,
even for a successful re-start.
Only a power-down/power-up
will reset the LED to green and
re-energize the relays.
DSP-to-X86
Communication
Failure
"Aux_Failure_Alarm"
to user-selectable
aux. output relay
contacts close.
System
Failure
"SERVICE REQUIRED"
on front panel goes
from off to red
Note: For either of the above cases the DSP controller functions con-
tinue with normal auxiliary relay outputs, provided that DSP failure
has not occurred.