38
F238006
Section 4 Troubleshooting
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
7. NO MOTOR OPERATION (WITH NO AC DRIVE FAULT)
Symptom: The motor is not running and there is no apparent AC drive fault present.
Refer to reference point “1” on the following “No Motor Operation (With No AC Drive Fault)” schematics.
Preliminary Checks:
a. Check for any mechanical problems in the drive system (e.g., check the motor, motor bearings, pulleys and
belt).
b. Check all electrical connections between the interface board and the AC drive.
c. Check for proper control signal wiring.
Secondary Checks:
a. Check for incoming AC voltage into the AC drive.
b. Using a parameter unit, check the parameter set for your motor/AC drive combination.
NOTE: Contact the factory with your washer-extractor’s model and serial number to obtain the proper AC
drive illustration.
c. Check the control signals between the interface board and the AC drive with the voltage test shown on the
following charts.
A-B 160 Control Logic
H – Control Voltage High 12 Volts DC
Logic 0
L – Control Voltage Low <1 Volt DC
Logic 1
Voltage Reading Pos (+) Volts DC
4
2
1
6
8
5
Input Status
Voltage Reading Neg (-) Volts DC
3
3
3
3
3
3
Parameter 15
Parameter 12
V Computer & EDC
Action
A-B 160
Frequency
Preset
Parameter
Preset
#
Preset
Input/
SW3
Preset
Input/
SW2
Preset
Input/
SW1
Forward
Motion/
STF
Stop
Reverse
Motion/
STR
N/A
SW3
SW2
SW1
N/A
ST
F
St
op
ST
R
Half Wash Fwd
62
1
H
H
L
L
L
H
0
0
0
1
0
1
1
0
Half Wash Rev
62
1
H
H
L
H
L
L
0
0
0
1
0
0
1
1
Wash Fwd
63
2
H
L
H
L
L
H
0
0
1
0
0
1
1
0
Wash Rev
63
2
H
L
H
H
L
L
0
0
1
0
0
0
1
1
Distribution
65
4
L
H
H
L
L
H
0
1
0
0
0
1
1
0
Spin 1
64
3
H
L
L
L
L
H
0
0
1
1
0
1
1
0
Spin 2
67
6
L
L
H
L
L
H
0
1
1
0
0
1
1
0
Spin 3
66
5
L
H
L
L
L
H
0
1
0
1
0
1
1
0
WE-6 Computer
Half Wash Fwd
65
4
L
H
H
L
L
H
0
1
0
0
0
1
1
0
Half Wash Rev
65
4
L
H
H
H
L
L
0
1
0
0
0
0
1
1
Wash Fwd
63
2
H
L
H
L
L
H
0
0
1
0
0
1
1
0
Wash Rev
63
2
H
L
H
H
L
L
0
0
1
0
0
0
1
1
Distribution
62
1
H
H
L
L
L
H
0
0
0
0
0
1
1
0
Med. Spin
67
6
L
L
H
L
L
H
0
1
1
0
0
1
1
0
High Spin 1
66
5
L
H
L
L
L
H
0
1
0
1
0
1
1
0
High Spin 2
64
3
H
L
L
L
L
H
0
0
1
1
0
1
1
0
High Spin 3
68
7
L
L
L
L
L
H
0
1
1
1
0
1
1
0