Section 6
Weld control
34
Seam current control (extended feature)
The weld programs contain the following current control parameters.
Parameter
Units
Range
Description
Pre-mode
1
P/W – CCu – CCC
Operating mode of the Pre-heat interval
Pre-heat
1
%
0.0 – 99.9
The % heat used during the Pre-heat interval
Pre-current
1
kA
0 – 500
The current used during the Pre-heat interval
Pre-monitor
1
yes/no
The current can be tested between limits
Main mode
P/W – CCu – CCC
Operating mode of the Main heat interval
Main heat
%
0.0 – 99.9
The % heat used during the Main heat interval
Main current
kA
0 – 500
The current used during the Main heat interval
Main monitor
yes/no
The current can be tested between limits
Post mode
2
P/W – CCu – CCC
Operating mode of the Post-heat interval
Post heat
2
%
0.0 – 99.9
The % heat used during the Post-heat interval
Post current
2
kA
0 – 500
The current used during the Post-heat interval
Post monitor
2
yes/no
The current can be tested between limits
High limit
%
0 - 99
Current high limit
Low limit
%
0 - 99
Current low limit
1
Pre-heat program option must be enabled to use this feature
2
Post-heat program option must be enabled to use this feature
P/W (constant Pulse Width) mode. The current and heat parameters are independently adjustable. The
inverter pulse-width is fixed. The current parameter is used for monitoring only.
CCu (Constant Current uncalibrated) mode.
The current and heat parameters are independently
adjustable. The inverter uses a variable pulse-width to determine and regulate the actual current. The
current parameter is used for monitoring only.
CCC (Constant Current Calibrated) mode.
The current parameter is adjustable but the heat is
automatically determined by the iPAK2 from the calibration data.
The diagram shows how the parameters control the welding current.
Start input
EOS output
WAV output
Force
Main heat/current
Pre-heat/current
Post-heat/current
Current
In
terval
Squ
eez
e
Pre-h
eat
C
ool
1
Up
sl
o
pe
Ma
in
h
ea
t
Do
w
n
sl
o
pe
Post-heat
C
ool
2
Ho
ld
Содержание iPAK2
Страница 9: ...Section 1 Introduction 9 Communications Ethernet RS485 RS232...
Страница 11: ...Section 1 Introduction 11 Multi welder Up to 8 transformers and cylinders cascade or independent firing...
Страница 12: ...Section 1 Introduction 12 Seam welder with one transformer Seam welder with a multi tap transformer...
Страница 16: ...Section 2 Getting started 16 User s connections discrete...
