BUG-O Systems AGS-4000 - Manual (Page 40)

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ARC GOUGING MODULAR DRIVE TROUBLESHOOTING GUIDE, (CONT’D.)
PROBLEM POSSIBLE CAUSE TEST BASE SYSTEM TEST PROCEDURE / REMEDY
Defective RFI 1F Disconnect the two RFI filter output wires (see Fig. 1). Turn ON
the main power. Verify the power line exists on the two output
wires. Reconnect the wires. Replace the RFI filter if the power
line voltage is not present
Bad Power 1G Turn ON main power. The Green LED’s LI and L2 (see Fig 1)
Supply will light if the power supply is OK. If the LED’s are OFF, unplug
the power supply output connector (see Fig. 1). The connector
wiring is: White & Red is +15 V DC (+/- 2V). White & Black is
DC ground. White & Orange is -15 V DC (+/- 2V). Measure
voltages at the connector.
a) A bad voltage indicates a defective power supply. Replace
the power supply.
b) Correct voltages indicate the power supply is OK, however,
there is a short in the equipment. Plug in the power supply
output connector. Perform test 1H.
Short Circuit 1H The Green LED’s L1and L2 will light when the short is removed.
Unplug the following and monitor the LED’s to see if the short is
removed:
1) The Control Module,
2) The speed card input power connector (see Fig. 1).
3) all connectors attached to the interconnect card (see Fig. 1),
except the connector for the supply.
If L1 and/or L2 never turn ON, the interconnect card is bad.
Replace the board.
No tractor Operator 2A Set the MODE switch to CONTINUOUS and the CARRIAGE
speed control Error TRAVEL switch to STOP. Turn the SPEED CONTROL
and display clockwise. Proceed to step 2B if the display does not increase. If
is LIT. the display does not increase, then turn the CARRIAGE TRAVEL
switch to FORWARD. Open the master drive case (Fig. 3)
and proceed to step 2C. If the tractor does not move forward.
Bad DC Power 2B Open the masters drive case (fig. 3). Unplug the power supply
output connector (see Fig. 1). The connector wiring White & Red
is +15 V DC (+/- 2V). White & Black is DC ground. White &
Orange is -15 V DC (+/- 2V). Measure the voltages at the
connector. A missing or bad voltage indicates a bad power
supply. Replace the power supply.
Faulty Motor 2C Check the wires from the speed card to the motor for faults.
Wiring Rewire if needed.
Faulty Motor 2D Disconnect the motor leads. Apply 2 to 8 volts DC across the
motor leads. Verify that the motor spins.