BUG-O Systems SE-2PTD - Manual (Page 41)

41
OPERATION CHECKLIST AND TROUBLESHOOTING
1. Plug in the machine to the required voltage source and turn “ON / OFF” switch to the “ON”
position. Operate the “MANUAL JOG” switch in all four directions. This overrides any speed
command from the computer control. If the drive runs in the corresponding direction, and the
speed can be varied with the “SPEED CONTROL” this indicates:
• The speed control board is operating properly.
• The controller circuit is supplying the required voltages.
If only one motor does not run correctly and the other one does, then it is likely that the motors
speed control is faulty.
If both do not operate properly, then there may be a component on the control module that
prevents proper voltages from being supplied to the “MANUAL JOG” switch.
A bad connection in the speed signal line to the speed board may also run the motor in one
direction at full speed.
Manual controls must function properly before checking the computer controls.
2. Attach the Handheld Pendant and push the “RESET” button on the control panel. The display
should read “Reset OK”. Push the “D” Key on the Pendant keypad and push “Return” until
the display shows the Cut No. and the data for that programmed cut. If the Pendant display
functions, this indicates:
• The communication line is functioning.
• The computer is operating its program.
If the message “Reset OK” comes up but Pushing “D” on the pendant keypad or any other key
has no effect, there could be a false signal coming in from the
“STOP / PAUSE” button, due to a wire short or damage switch.
3. Disconnect the Handheld Pendant and turn the “ON / OFF” switch to the “OFF” position.
Toggle the “MANUAL JOG” switch in all four directions after pushing the “RESET” button. When
the “MANUAL JOG” switch is let go, the machine should go back to its original position.
This confirms that the computer control is running its program, and also interfacing correctly
with the encoders and the speed signal outputs to the speed boards.
If one motor return home and not the other, then the computer may not be receiving the encoder
signals properly from that axis encoder pick up gear or coupling may be loose or the pins in the
encoder plug may not be making a good connection.
If the motor return home from one direction but not from the other, the speed control may be
faulty and drive only in one direction.