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XYZ Machine Tools Ltd
XYZ Bed Mill Safety, Installation, Maintenance, Service & Parts List Manual
Do the following service code and procedures:
Code 33 Software Identification. This is needed if you call Customer Service.
Code 329 Control Outputs. Enables the outputs to be turned on/off manually (Press Code F first
to access codes 328 through to 330)
Possible Cause
Check This
Blown fuse
Check the fuses feeding the coolant pump and also the coolant
pump control circuit.
Poor cable connections
Check all the cable connections on the cable breakout box and
Coolant Pump. In particular, check umbilical # 2 cable, which
carries the auxiliary function signals.
Bad cable breakout box
Check for continuity between the following pins when the
corresponding aux function is activated:
Coolant connector:
1 and 4
Indexer connector:
3 and 4
Spindle connector:
1 and 4
3.3.11
Emergency Stop Error (E-Stop)
The E-Stop turns the power off to the axis and spindle motors. SMX Bed Mills have an E-stop on the front
of the pendant and a reset button on the side of the pendant. (See figures 9 & 10). When the E-stop is
activated:
Power to the cable break out box (from the pendant AC E-stop Out connector) is isolated via the
E-stop relay inside the pendant. This isolates power to the axes motors.
The spindle AC drive power is turned off by a contactor (K1), located on the power module. The
contactor (K1) is turned off by the dual channel safety relay, which monitors the pendant E-stop.
(for SMX2500, the safety relay removes 24VAC power to the spindle contactors)
The E-stop LED on the spindle control module will be on when the e-stop is in the out position. The LED
will turn off when the E-stop is depressed. (See figure 10).
If the E-Stop button is depressed, and no message is displayed on the screen, then either the pendant,
spindle control module, cables from pendant to spindle control module, or cables from spindle control
module to dual channel relay (safety relay) are at fault.
Possible Cause
Check This
E-Stop reset button
Press the E-Stop reset button on the side of the pendant.
Bad pendant
Does 110 V power come out of the AC E-stop Out connector on the
pendant? If yes and the screen has an E-stop message then
replace the pendant.
Poor cable connection
Check spindle control cable connection and Euro connector
connections.
3.3.12
Limit Switch Error
Limit switches are installed on the table, saddle, and head to prevent serious damage to the machine in
the event of overtravel. In the event a limit switch is triggered, a limit switch error will appear on the
screen.
To return the machine to its normal state of operation, perform the following procedure:
1.
Jog the table, saddle, or head off the switch.
2.
Press the "Mode" or "Return" key to reset the control
3.
Press the "DRO" key to access the Jog function again.