Measuring The External Resistance Value - YASKAWA YWE-EH500-6N0 Instruction Manual

HW0480311
14.2.2

Measuring the External Resistance Value

The external resistance is measured by panel operations. The following describe how to
measure the resistance value.
1. Start-up of the resistance measurement mode
With the "Weld.Type" button pressed, turn ON the welding source main power supply.
The welding source starts up in the resistance measurement mode.
In the resistance measurement mode, the external resistance can be obtained by out-
putting the constant current of approx. 300 A and measuring the voltage required at
that time.
Common PRM Select
PRM Select
Common PRM Select
Record
Fig. 24 Start-up of the Resistance Measurement Mode
V A
PRM Select
In the resistance measurement
V/Set A.W/S
mode, the current command value
is set to "300 A".
Gas
Record
V Wire m/min
A
PRM Set
L
Gas
ON
turn ON the welding source
main power.
OFF
14-4
14.2 Procedure of External Resistance Calibration
Type
Wire m/min
PRM Set Weld,Type
Displays "r" which indicates
the resistance measurement mode.
File No.1
File No.2
L R
File No.3
User File Select
Type
Power
Warning
Search
Weld, Type
File No.1
File No.2
R
While pressing "Weld, Type"
File No.3
button,
User File Select
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Power
Warning
Search
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