SQF-4-3
Trouble-
shooting
12 February 2007 FAULT CODE DESCRIPTION
SQF-004
Fault code SQF-004, indicates that the Stop gate motor (SQF-M2) has a short circuit.
Initial Actions
Check Fuse F2 on the Squarefolder Transformer.
Procedure
Disconnect the motor plug M2. Run the Diagnostics again. Fault code SQF-005 (Open circuit) is displayed?
Y N
Disconnect plug D.P2 from PCB ”D”. Check wires for Short circuit across leads, the Orange wire M2 to D.P2-9
(violet) and the Violet wire M1 to D.P2-2 (orange). Is there Short circuit?
Y N
Replace PCB ”D”.
Replace wire Harness.
Replace motor SQF-M2.
SQF-005
Fault code SQF-005, indicates that the Stop gate motor (SQF-M2) has an Open circuit.
Initial Actions
Check Fuse F2 on the Squarefolder Transformer.
Makesurethattheallenscrewtothewhitecamistightenagainsttheatonthemotor
shaft.
Procedure
Disconnect the motor plug M2. Disconnect plug D.P2. Is there Continuity and no Short circuit?
Y N
Replace wire Harness.
1. Replace motor SQF-M2.
2. Replace PCB ”D”.
SQF-006
Fault code SQF-006, indicates that the Stop gate motor (SQF-M2) had a Cycle time out.
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 motor Home position sensor (SQF-Q1) is installed correctly.
Procedure
Enter the Service mode and select Stop gate motor Home position sensor (SQF-Q1) in check sensors. The Stop gate mo-
tor Home position sensor indicates :1 when the sensor is blocked, and :0 when the sensor is unblocked?
Y N
1. Replace sensor SQF-Q1.
2. Disconnect plug D.P13 from PCB ”D”. Measure between J13-1 and J13-3 (5V and ground). The
voltage is approximately 5 VDC?
Y N
Replace PCB ”D”.
Disconnect plug from sensor SQF-Q1. Check wire for Continuity / Short circuit from the white wire Q1 to D.P13-3.
Is there Continuity and no Short circuit?
Y N
Replace wire Harness.
Connect plug D.P13 to PCB ”D”. Measure between the red wire Q1 and the black wire Q1 (5V and
ground). The voltage is approximately 5 VDC?
Y N
Replace wire Harness.
Replace PCB ”D”.
Replace the SQF-M2.
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