SQF-4-7
Trouble-
shooting
12 February 2007 FAULT CODE DESCRIPTION
SQF-013
Fault code SQF-013, indicates that the Roller motor (SQF-M4) do not receive any displacement
pulses.
Initial Actions
Check Fuse F2 on the Squarefolder Transformer.
Enter the Service mode and select Roller motor (SQF-M4) in check motors.
Make sure that the Roller motor sensor (SQF-Q8) is installed correctly.
Procedure
Disconnect the sensor plug Q8 to motor SQF-M4. Measure between the yellow wire Q8 and the grey wire Q8 (5V and
ground). The voltage
is approximately 5 VDC?
Y N
Disconnect plug D.P14 from PCB ”D”. Measure between the J14-15 and J14-13 (5V and ground). The voltage
is
approximately 5 VDC?
Y N
Replace PCB ”D”.
Replace wire Harness.
Disconnect plug D.P14 from PCB ”D”. Check wires for Continuity / Short circuit from the white wire Q8 to D.P14-14, the grey
wire Q8 to D.P14-13, and the yellow wire Q8 to D.P14-15. Is there
Continuity and no Short circuit?
Y N
Replace wire Harness.
1. Replace motor SQF-M4.
2. Replace PCB ”D”.
SQF-014
Fault code SQF-014, indicates that the Infeed sensor (SQF-Q5) is faulty.
Initial Actions
Make sure that the sensor is clean.
Make sure that the Infeed photo transistor sensor, and the Infeed LED sensor (SQF-Q5) is
installed correctly.
Check fuse F3 on the Squarefolder Transformer.
Procedure
Disconnect plug D.P13 from PCB ”D”. Measure between J13-23 and J13-16 (5V and ground). The voltage is approxima-
tely 5 VDC?
Y N
Replace PCB ”D”.
Disconnect plug from Infeed LED sensor SQF- Q5. Check wire for Continuity / Short circuit from black wire Q5 to D.P13-16,
the red wire Q5 to D.P13-23. Is there continuity and no Short circuit?
Y N
Replace wire Harness.
1. Replace Infeed LED sensor Q5.
2. Connect plug D.P13 to PCB ”D”. Disconnect plug from Infeed photo transistor sensor SQF-Q5. Measure between black
wire Q5 and white wire Q5 (5V and ground). The voltage is approximately 5 VDC?
Y N
Disconnect plug J20. Measure between P20-2 and P20-3 (5V and ground) in the plug J20. The voltage is
approximately 5 VDC?
Y N
Disconnect plug D.P13 from PCB ”D”. Measure between J13-24 and J13-25 (5V and ground). The
voltage is approximately 5 VDC?
Y N
Replace PCB ”D”.
Replace wire Harness.
Replace wire Harness to Infeed photo transistor sensor Q5.
Replace Infeed photo transistor sensor Q5.
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