Service and troubleshooting
ORBIMAT CA
| Operating instructions
70
orbitalum tools
GmbH, D-78224 Singen, www.orbitalum.com, Tel. +49 (0) 77 31 792-0
(09.03.15) OW_ORBIMAT_CA_BA_871060202_04_EN
05
Current fault
Used in connection with a deviation of the weld current.
Example:
"Warning: Low current fault", see message 01.
06
Current abort
The weld current has overshot or undershot the limits defined for aborting in the moni-
toring limits and the process was interrupted.
X
Check limit values: Possibly set too close together.
Excessive resistance in weld circuit (ground connection, rotor, current water cable):
The machine can no longer keep the programmed weld current (setpoint value) stable
within the specified limits.
07
Low
The limit value set for the low pulse of the corresponding parameter was reached; see
also message 01.
08
Voltage
The message appears as "Warning: Voltage". The limit values specified in the monitor-
ing limits for the alarm were overshot or undershot.
X
Check limit values and heed information in "Monitoring functions" (see chap. 8.9,
p. 52).
Cause for excessive arc voltage:
High transition resistances in weld circuit (plug, ground contact etc.)
For cassette heads: Worn current water cable.
09
Voltage abort
The limit values for aborting with regard to arc voltage specified in the monitoring
limits are overshot or undershot.
X
Check limit values and heed information in "Monitoring functions" (see chap. 8.9,
p. 52).
Cause for excessive arc voltage:
High transition resistances in weld circuit (plug, ground contact etc.)
For cassette heads: Worn current water cables.
10
Speed
Supplement to "Warning". The limit values specified in the monitoring limits (warning)
of the speed were overshot or undershot.
X
Check limit values.
X
Check weld head speed.
X
Carry out motor calibration if ne.
11
Speed abort
The weld speed has overshot or undershot the limit values specified for abortion in the
monitoring limits and the process was aborted.
Check limit values; they may be too close together.
Possible causes for speed aborting:
Mechanically blocked, jamming or defective weld heads.
X
Check whether the weld head can be moved manually (or with the remote control).
X
Carry out motor calibration if necessary.
12
Time limit for high-volt-
age ignition exceeded
After the ignition device was switched on, an arc was not ignited within approx. 3 seconds.
The process is interrupted.
Causes for failed arc ignition:
Fault in marginal conditions of the process, e.g. forgotten ground connection (see
chap. 9.2.5, p. 68).
13
Inverter
Fault in serial communication (RS232) between PC controller and inverter.
X
Switch machine off and then, after 30 seconds, switch it on again.
Is the fault still occurring?
X
Contact your specialist dealer or Orbitalum.
14
Arc has cut out
Arc ignition was successful, but the arc cut out during the process.
Causes:
• Interruption of welding circuit (contact problems, ground terminal).
• Excessively low currents (low pulse may not be under 5 A for standard applications!).
• Excessively low final current.
• Arc gap too large.
• For open heads: Strong draft causes arc to cut out
