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<Pressure calibration>
Mains
monitoring unit
Figure 20: Setup for pressure calibration
1070 080 067-101 (2001.03) GB
PSI 6XXX.350 L1
Various pressure setpoints (P
dure. The force F
between the electrode caps is measured with the LC
act
The measured force F
act
the timer for power calibration.
The objective of this procedure is to adjust the pressure to pressure regulator with the
effect that the programmed force F
NOTE
A calibrated load-sensing device is required to provide reference load values.
U1
V1
W1
A
U1 V1 W1
D
R
3/PE~
U2 V2
2/~
V24
2/PE
~
+
-
X3
U2
V2
) are entered in the pressure regulator with this proce-
com
(= value analog to the output voltage of the load cell) is used in
in kN (= F
com
actual force
value F
act
actual force
value F
act
programmed
pressure value
P
com
Electrical connection
) is applied at the weld gun.
act
BOS-5000
Local PC:
optional input of actual
force values F
kN
reference load-
sensing device
proportional control valve
Solenoid
electrodes with
load cell LC
load cell.
mon
act
mon
7-31
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