Polysoude PS 406-2 - Troubleshooting Guide; Diagnosing Operating Defects

60-92 PN-0908073 Rev. 11
PS 164-2
THE ART OF WELDING
6. 5. 1. Trouble shooting
6. 5. 1. 1. Noted defect when operating
Observed defect Possible causes What to do
The power source cannot
be turned on
• F2 or F3 fuse defect
• Mains connection cable or plug defect
• Remote control pendant BP 1436 defect
(emergency stop clamped)
• K1 relay defect or disconnected from its
place
• On/off switch defect
• Wrong mains voltage selections
• + 5 V power card defect
• Synoptic card 21700634 defect
• Change (chap. 6.2.1)
• Change
• Check and correct or change
• Check and correct or change
• Check and replace
• Correct and check fuses
• Replace
• Replace
The circuit breaker (out-
side the power source) re-
leases when switching on
• Unsuitable circuit breaker • Use a 20 A circuit breaker
with D graph
The welding cycle or an
axis (rotation, wire, gas or
cooling) is self starting
• Power source is not grounded
• Remote control pendant defect
• Screening of remote pendant cable deterio-
red
• Synoptic card 21700634 defect
• Correct
• Check and repair or change
• Change the cable
• Replace
Some push buttons of the
remote pendant are ino-
perative
• Remote control pendant defect
• Synoptic card 21700634 defect
• Check and repair or change
• Replace
The screened programme
number is not similar to
the selected one on the
remote pendant
• Remote control pendant defect
• Synoptic card 21700634 defect
• Check and repair or change
• Replace
Some programmes are
deleted from the power
source memory
• Wrong operating (deleting of the program-
mes with SY 24 button)
• The 21700633 card has been changed
• RAM memory of 21700633 card defect
• Reintroduce the programmes
• Load again the programmes
• Replace the memory
Value of some parameters
of the card is changed
• Memory card defect • Record a new memory card
Value of parameters can-
not be changed ("+" and
"-" push buttons are ino-
perative )
• SY26 switch key is in position "Modifi cation
non authorised"
• Change the position
Some push buttons of the
programming panel are
inoperative
• Programming synoptic defect
• Synoptic card 21700634 defect
• Call After Sales Service
• Replace
No display • +5 V power defect
• Ram memory of 21700633 card defect
• FU1 and FU2 defect
• Check its fuse and change
• Replace the memory of the
card.
It is impossible to start
a weld cycle (the indica-
tor of the control panel is
fl ashing)
• There is no program with the number you
have chosen on the power source
• Check the program number
(§ 5.4.2)