Specifications

Southwestern Industries, Inc.
ProtoTRAK

SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
49
3.3.11 E-Stop Error
The E-Stop turns the power off to the axis and spindle motors. This is done by stopping
110V power from reaching the cable breakout box through the use of a relay in the
pendant.
Once power reaches the cable breakout box it distributes power to the axis motors,
auxiliary functions and 110V power to the spindle contactor for non-spindle control
machines. If power does not reach the cable breakout box then none of these functions
will work.
Spindle Control Electrical Box
A 5-volt logic signal is sent to the spindle control board, which energizes a relay that
enables the AC drive.
Non Spindle Control Electrical Box
110V Power reaches the electrical box through the AC E-stop cable. It is used to
energize the spindle motor contactor. If this contactor is not energized the spindle will
not turn on. See Figure 19.
If the E-Stop button is depressed, and no message is displayed on the screen, then
either the E-Stop button or the Computer Module is at fault.
Possible Cause Check This
Faulty E-Stop switch Check the cable connections from the computer
module to the E-Stop switch. Check the E-Stop switch
for functionality.
Bad Computer Module Does 110 V power come out of the cable breakout box
power cord on the pendant? If yes, and the screen
has an E-stop message, replace the computer module.
3.3.12 Limit Switch Error - Optional
Limit switches are installed on the table, saddle, and ram to prevent serious damage to
the machine in the event of a crash. 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. Use mechanical handwheels on X and Y to move switch off of trigger. For the Z-axis,
manually lift the arm on the trigger to return the limit switch to its normal position.
Then jog the ram up or down as necessary.
2. Press the "Mode" or "Return" key to reset the control
3. Press the "DRO" key to enable the machine to once again jog.
Critical Error 52: Servo Error
X-axis Limit Switch
Correct the fault condition and continue.