Miller OM-246 466B, Руководство пользователя

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OM-246 466 Page 58
7-11. Network And Module Status LEDs
A.
Network Status LEDs
The following are network status LEDs:
LED1 on the UIM circuit board
LED4 on the WFM and PCM circuit boards
LED30 on the AIM circuit board.
Status Diagnosis
Both LEDs Off The circuit board is not on-line with the network or there is no power applied to the circuit board.
Both LEDs Green The circuit board is operating normally and the on-line connection is made with the network.
Flashing Green The circuit board is waiting for an on-line connection to be made with the network.
Red The circuit board has encountered a communication link failure with the network. Check DeviceNet cable connections. Verify
dip switch positions according to Sections 7-7 and 7-9. Replace circuit board if necessary.
B.
Module Status LEDs
The following are module status LEDs:
LED2 on the UIM circuit board
LED3 on the WFM and PCM circuit boards
LED31 on the AIM circuit board.
Status Diagnosis
Off There is no power applied to the circuit board or the board software is not executing its functions.
Green The circuit board is operating normally.
Flashing Red The circuit board has encountered a recoverable fault. Wait or cycle power to clear fault.
Red The circuit board has encountered an unrecoverable fault.
7-12. Troubleshooting
Trouble Remedy
No weld output; completely inoperative Place line disconnect in On position (see Section 3-17).
Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 3-17).
Check for proper input power connections (see Section 3-17).
No weld output; meter display on with no
error displayed.
Check to see if the contactor indicator light is lit when contactor line is asserted on.
Erratic or improper weld output with no
errors displayed.
Use proper size and type of weld cable (see Section 3-9).
Check that proper program for wire size, process, and shielding gas is loaded.
Clean and tighten all weld connections.
No 115 volts AC at the duplex receptacle. Reset supplementary protector CB1.
Wire feeder has no power. Check supplementary protector CB2 and reset if necessary.
Check motor control cable connections.
Wire stubbing on low end using a
constant current power source.
Increase output setting of the power source.
Check voltage sense lead connection, clean and tighten if necessary.
Wire burns back to gun contact tip when
using electrode negative (straight
polarity) process.
Check to be sure that volt sense lead is connected to the work.