No. P10224
P. 31 / 47
11. APPLIED FUNCTION (continued)
11.8 when troubles occur
WARNING
To avoid electric shock, follow the below instructions.
●
Do not touch the charging parts of the machine.
●
Have a qualified engineer
or a person who is familiar with this welding power source
change wiring inside the welding machine or change over the switches.
●
Be sure to turn off all of the line disconnect switches and that more than 3 min. has passed
after turning off the input power switch when installing and maintain the welding machine.
If errors occurred, warning lamps on the front panel and red LED on P.C.B.P6906P light and the
welding power source automatically stops. In this case, check the errors in the table below and 12.3
Troubles.
○
: Light
●
: Extinction
◎
: Flash
Error
WARNING
indicator on
P.C.B. P6906P
No.
Error contents
the front panel PL202 PL203 PL204 PL205
①
Operation of safety circuit
◎
●
●
●
●
②
Setting of welding conditions
◎
●
●
●
●
③
Operation stop
○
●
●
●
◎
④
Input overvoltage
○
○
●
●
●
⑤
Output overcurrent
○
●
●
○
●
⑥
Thermal overload
○
●
●
●
○
⑦
SCR and IGBT driver
○
○
◎
●
●
⑧
Primary/secondary current detection
○
●
●
○
◎
⑨
Control power (
±
15 V)/input voltage shortage
○
◎
◎
●
●
⑩
Arc voltage detection wire
○
●
●
◎
◎
⑪
Microcomputer
○
●
◎
●
◎
⑫
Communication with robot
○
◎
◎
◎
◎
⑬
Gas check
◎
●
●
◎
●
⑭
Encoder
○
●
◎
●
●
⑮
Secondary transistor
○
◎
○
○
◎
