Car-O-Liner CTR12000 Instruction Manual page 20

Car-O-Liner Group AB
20
With the oscillograph- plug in, 3 status signals could be displayed after the
process:
a) integrated process resistance during the segment "pre pulse"
(SAutoTX)
b) Averaged process resistsance during the segment welding (SAuto)
b) display status ( Error- code: 1 to 12), ( Success- code: from 10)
The status is displayed in 0,5V steps ( e.g. Error 5=> 2,5V; Code 12=> 6V)
The QS- System was optimised, that after a welding a definite conclusion is
displayed:
Green for a successful action or red for an automatic process abort. A pro-
cess abort is achieved if a given critical time exceeds, that could happen dur-
ing an unusual activity. That could happen if, e.g. the electrodes are posi-
tioned on the edge of the work piece or there is an interruption on the mains.
Such an interruption also could happen if the calibration (CHECK-EL) is
made with dirty electrode caps.
These differences, which could be tolerated and which are lower than with a
usual current/ time control are displayed with a yellow light during the pro-
cess. After the process stops, the yellow light is replaced usually by the
green light, if the CTR12000 control system finish the process successfully.
Intermediate messages, yellow, could appear if, e.g. to breakthrough a part
wise isolation or the resistance characteristic is higher than generally ex-
pected.
Attention! Exceeding of welding time indicates that the calibration was in-
correct. This may occur when copper electrodes are not cleaned. Please clean
the electrode caps at the contact surface. Be careful not to make scratches or
slots! Dirty electrode caps could endanger the calibration and thus the quali-
ty and safety management of the machine.
Attention! The measuring system reach it's correct accuracy normally when
the electronic components are at it's operating temperature. Please perform
the CHECK- EL after some minutes after switching on the machine.
Attention! Please be careful by changing the electrode arms. The welding
tongs contain a sensitive measuring system inside which could be damaged
by intrusion of water. It's important that the solid arm of the X- tong is in the
CTR12000
41644, EN - rev. 2, 2012-09