Entron iPAK2

iPAK2 User Guide
36
4.4. CCC calibration
The current must be calibrated (See 4.3) before carrying out the following procedure.
When operating in CCu mode the inverter uses the Heat parameter to determine the output
current. In order to be able to control the output current directly in amps it is necessary to
establish the relationship between Heat and Current as follows:
 Produce a short circuit weld at a low heat in CCu mode and note the heat setting (H1)
from the iPAK2 and the corresponding measured current (I1).
 Repeat the short circuit weld at a higher heat and note Heat (H2) and Current (I2).
 Enter these values as the ‘Points 1&2’ parameters in CCC calibration.
Heat
Current
H
2
H
1
I
1
I
2

The iPAK2 will use these values to determine the relationship between Heat and Current. CCC
mode can now be selected in the welding schedules and required current programmed
directly in amps. The Heat parameter is no longer required.
This calibration also assists the iPAK2 to produce a rapid rise-time to the desired current without
causing any significant transient conditions.
Parameter Units Range Description
Point 1 (heat) % 0 – 99.9 The set value of low heat (H1)
Point 1 (current) kA 0 - 500.0 The measured value of current at a low heat (I1)
Point 2 (heat) % 0 – 99.9 The set value of high heat (H2)
Point 2 (current) kA 0 - 500.0 The measured value of current at a high heat (I2)
In multi-electrode systems there are separate calibration files for each electrode. Each
electrode must be calibrated before being used.