2-27
12H-M12M0-0309-0
(28) Motor index sensor check (Code No.37)
Mode for checking the index sensors in the main motor and index sensors of folding plates 1 and 2.
Checking the main motor index sensor
When the main motor shaft is rotated by rotating the jam correction knob or center press roller, pulse input is
performed, and the number of pulses is counted up and displayed at the 7-segment window on the right side.
When the main motor shaft is rotated once, and the number of pulses should be added with 15.
The number of pulses displayed is reset to 0 when the power is turned OFF.
The number of pulses is counted up even if the main motor shaft is rotated in the normal or reverse
directions.
NoteNote
Checking the folding plate 1, 2 index sensor
Check the changes in the states of each sensor by looking at the changes in the number of pulses displayed at
the 7-segment window on the right side.
Pressing the “+” key of the folding plate 1 folding stopper adjusting key counts up the number of pulses displayed,
and pressing the “–” key counts down the display.
Pressing the “+” key of the folding plate 2 folding stopper adjusting key counts up the number of pulses displayed,
and pressing the “–” key counts down the display.
If the direction which changes the number of pulses is opposite to the above, check if the connectors of
index sensors A and B of the corresponding folding plate are connected reverse.
NoteNote
3-4. Precautions for Setting Folding Stopper Fixed Mode (DF-920 only)
When the operation mode is set to the folding stopper fixed mode, if moving the position of the folding stopper for
folding plate motor tests or folding plate index sensor check, be sure to turn OFF the power once, and then turn it ON
again to perform initialization before starting folding operations, and re-check the positions of the folding stoppers.
Starting without performing initialization will result in folding operations at the incorrect stopper position.
Perform initialization by pressing the clear key while pressing the stop key after turning ON the power.
Initialization will be performed automatically when the clear key is pressed twice from the maintenance mode to
return to the normal mode.
NoteNote
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