Instruction manual

P84905-001 G
Sheet 20 of 37
Control PC Board
IN1
IN2
CC1
CC2
SBUS
IN
SBUS
RET
SIL
IN
RET1
RET2
COM
NO
NC
TROUBLE
AUX
OUT
NAC1
OUT
NAC2
OUT
NAC3
OUT
NAC4
OUT
TB1
TB2
TB6
TB3
TB4
SW2
SW1
SW3
SW4
IN2 FOLLOWER OFF/ON
TROUBLE LATCH OFF/ON
SBUS IN1/IN2
GF DETECT OFF/ON
SBUS SYNC/TEMPORAL
SYNC PROTOCOL
SYNC PROTOCOL
NAC1-NAC2 CLASS A/B
NAC3-NAC4 CLASS A/B
AUX POWER CP/MP
SBUS MASTER/REMOTE
NAC4 SYNC/TEMPORAL
NAC4 IN1/IN2
NAC3 IN1/IN2
NAC2 IN1/IN2
NAC1 IN1/IN2
IN1 FOLLOWER OFF/ON
SW6
NAC3 SYNC/TEMPORAL
NAC2 SYNC/TEMPORAL
NAC1 SYNC/TEMPORAL
D9
POWER
D37
ACTIVE
SW5
D40
D3: GROUND FAULT TROUBLE
D4-D8: SEE
TABLE 9
< D8-D4 >
SYNC BUS
GROUND FAULT
LOCATOR
SWITCH
D1
IN1 TROUBLE
D31
D36
INPUT1
INPUT2
D38
SILENCE
D2
GENERAL TROUBLE
D30
IN2 TROUBLE
Figure 13: Control PC Board Trouble LED Locations
Table 5: Control PC Board LED Trouble Indicators
LED
Designator
Identification
LED
Color
Description Action
D9 Power Green
Indicates when power is applied to the Control
board.
No Action Required
D37 Active Red
Indicates when the power supply is activated
and supplying power to the NAC output
circuits.
No Action Required
D2 System Trouble Amber
Indicates that a general trouble condition exists
on the Control board.
Check the Coded Trouble LED
Indicators and the Ground Fault LED.
Repair any problems indicated. If no
indication is observed, replace the
Control PC Board. See Table 7
D8, D7, D6,
D5, D4
Coded Trouble
LED Indicators
Amber
These five LEDs light in a coded pattern
indicating the location and type of trouble
condition. If multiple troubles are present the
LEDs will indicate the highest priority trouble.
When repaired the LEDs will indicate the next
priority trouble.
See Table 7
D3
General Ground
Fault
Amber
Indicates that a ground fault condition exists.
Pressing switch SW5 will cause the code
pattern on the coded Trouble LEDs to locate
the location.
See Table 7
D1, D30
IN1 RET, IN2
RET Trouble
Amber
Indicates that a general trouble condition
exists, and the IN1 RET and IN2 RET relays
are open.
See Table 7
D40
SYNC BUS
Power Active
Green
This LED lights when 24V is present on the
SYNC BUS.
See Table 7
D31 IN1/CC1 Active Red
This LED lights when IN1 or CC1 has been
activated.
See Table 7
D36 IN2/CC2 Active Red
This LED lights when IN2 or CC2 has been
activated.
See Table 7
D38 Silence Active Red
This LED turns on when the “SILENCE” feature
has been activated.
See Table 7
Coded Trouble LEDs
D8, D7, D6, D5, D4