Burford 2000 - Page 111

Troubleshooting 111
 Diagnostic LED's, cont’d
L.E.D.
Description
FTB - D30:
COUNTER RELAY
Indicates when the counter relay, CR6 on the FTB, is energized.
FTB - D33, D34,
and D35:
OPTIONAL I/O
STATUS
Indicates optional input or output signal status.
FTB - D36, D37,
and D38:
OPTIONAL INPUT
STATUS
Indicates optional input signal status.
AUX - D1: RUN
RELAY
Indicates that the run circuit has been energized. The run circuit
is made up of the “RUN” button, “STOP” button, mag-lock on
the front cover, and the CPU status relay CR9 on the AUX
board. All of these contacts must be closed before the run circuit
to energize.
AUX - D6: CPU
STATUS RELAY
Indicates the CPU is active and ready to control the motors. This
LED must be “ON” before the run circuit will energize.