Troubleshooting 109
Diagnostic LED's
The Field Termination Board (PN C01299) has thirty-four LED's to assist in
troubleshooting the Servo Tyer. Twenty-three of these are on the left side of the FTB and
indicate that the AUX board has received the signal. In addition, each relay and optional
I/O connections on the FTB has a status LED mounted next to it. The Auxiliary Board has
two status LED's that may also be helpful in troubleshooting. These are located next to
CR1 and CR9 just below the middle of the AUX board.
FTB - D1, D2:
NEEDLE Phase A
and NEEDLE
Indicates input signals from the needle motor encoder. Each LED
should blink on and off as the needle is moved back and forth.
FTB - D3, D4:
TWISTER Phase
A and TWISTER
Indicates input signals from the twister hook motor encoder. Each
LED should blink on and off as the twister hook is rotated back
and forth.
FTB - D5, D6: H/S
Phase A and H/S
Indicates input signals from the holder shear motor encoder. Each
LED should blink on and off as the holder shear motor is rotated
FTB - D7, D8:
BELT Phase A
and BELT Phase
Indicates input signals from the belt motor encoder. Each LED
should blink on and off as the belt motor is rotated back and forth.
FTB - D9:
Indicates when the “THREAD” switch is pushed.
FTB - D10:
Indicates when one of the steel dowels in the ribbon dispenser
spool triggers the ribbon dispense proximity sensor.
FTB - D11: BAG
Indicates when the bag switch is depressed.
FTB - D12: H/S
Indicates when the holder shear home proximity sensor is
triggered by the tabs on the holder shear shuttle cam.
FTB - D13:
Indicates when the tip of the twister hook triggers the twister hook
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