AGI D1660 - Page 141

7713395 R2 141
5
6
7 8
1 2
BURNER
CONTROL
POWE
R
PILO
T
FLAM
E
ALAR
M
RU
N
LIMI
T
RESE
T
MAI
N
120
V
120
V
120
V
MV1
GND GND
BK7
BUS
MV2
PV
L
V
N
N
N N
MODE
3
1 2
TB
TB
45
E
4
5 6
7 8
1 2
3
1 2
M
KS
45
rail
rail
1
1
12 13
OUT
OUT
3
OUT
4
PW
R
OUT
LC
14
15 16 17 18
1
1
12 13 14
15 16 17 18
E
4
PW
R
HONEYWELL RELAY MODULE
POWER LED
RESET
ALARM
MAIN
FLAME
PILOT
POWER
HONEYWELL MODBUS MODULE MODE LED
RELAY LEDS INDICATE COIL POWER PRESENT
KS45 AND TB47 LEDS
Honeywell Modbus Mode LEDs
LED Behavior Pulse Period Interval
Meaning
Mostly ON
with 1 blink
(good)
50ms (OFF)
1 sec
Normal Operation
Both ControlBus and
ModBus are active
Always OFF
OFF
No power or device failure
Always ON
ON
Modbus card failure
Mostly OFF
with 1 flash
50ms (ON)
3.85 sec
ModBus is not active
Check ModBus wiring
Mostly OFF
with 2 pulses
2 x (200ms ON,
200ms OFF)
1.75 sec Program CRC error
Most OFF
with 3 pulses
3 x (200ms ON,
200ms OFF)
2.15 sec
No ControlBus signal from
the burner controller
CONTINUOUS MIXED-FLOW GRAIN DRYER WITH COMMANDER CONTROL SYSTEM 8. APPENDIX