SQF-4-2
12 February 2007
FAULT CODE DESCRIPTION
SQF-001
Fault code SQF-001, indicates that the Transport Belt motor (SQF-M1) has a short circuit.
Initial Actions
Check Fuse F2 on the Squarefolder Transformer.
Procedure
Disconnect the motor plug M1. Run the Diagnostics again. Fault code SQF-002 (Open circuit) is displayed?
Y N
Disconnect plug D.P3 from PCB ”D”. Check wires for Short circuit across leads, the Orange wire M1 to D.P3-6
(violet) and the Violet wire M1 to D.P3-7 (orange). Is there Short circuit?
Y N
Replace PCB ”D”.
Replace wire Harness.
Replace motor SQF-M1.
SQF-002
Fault code SQF-002, indicates that the Transport belt motor (SQF-M1) has an Open circuit.
Initial Actions
Check Fuse F2 on the Squarefolder Transformer.
Procedure
Disconnect the motor plug M1. Enter Service mode and start Transport Belt motor (SQF-M1) in check motors. Measure
between the Orange wire M1 and the violet wire M1 (PWM 36V and ground). The voltage is approximately 18 VDC?
Y N
Disconnect plug D.P3 from PCB ”D”. Measure between J3-6 and J3-7 (PWM 36V and ground). The voltage
is
approximately 18 VDC?
Y N
Replace PCB ”D”.
Replace wire Harness.
Replace motor SQF-M1.
SQF-003
Fault code SQF-003, indicates that the Stop gate motor (SQF-M2) does not receive any displace-
ment pulses.
Initial Actions
Check Fuse F2 on the Squarefolder Transformer.
Check Fuse F3 on the Squarefolder Transformer.
Enter the Service mode and select Stop gate motor (SQF-M2) in check motors.
Make sure that the Stop gate sensor (SQF-Q1) is installed correctly.
Procedure
Disconnect the sensor plug Q10 to motor M2. Measure between the red wire Q10 and the black wire Q10 (5V and Signal
ground). The voltage is approximately 5 VDC?
Y N
Disconnect plug B.P14 from PCB “D”. Measure between the J14-9 and J14-3 (5V and Signal ground). The volt
age is approximately 5 VDC.
Y N
Replace PCB “D”.
Replace wire harness.
Disconnect plug B.P14 from PCB “D”. Check wires for Continuity / Short circuit from the grey wire Q10 to B.P14-4, the white wire
Q10 to B.P14-7, the black wire Q10 to B.P14-3, the red wire Q10 to B.P14-9. Is there
Continuity and no Short circuit?
Y N
Replace wire harness.
1. Replace motor SQF-M2.
2. Replace PCB “D”.
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