Design and function
Interfaces for automation
099-005670-EW501
7.03.2022
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5.5 Interfaces for automation
Damage to the machine due to improper connection!
Unsuitable control leads or incorrect connection of input and output signals can cause damage
to the machine.
• Only use shielded control leads!
• If the machine is to be operated with control voltages connection via suitable isolation ampli-
fiers is required!
• To control the main or secondary current via control voltages, the relevant inputs must be
enabled (see specification for activation of control voltage).
5.5.1 Automation interface
These accessory components can be retrofitted as an option
> see 9 chapter
.
WARNING
No function of the external interrupt equipment (emergency stop switch)!
If the emergency stop circuit has been set up using an external interrupt equipment
connected to the interface for automated welding, the machine must be configured for
this setup. If this is not observed, the power source will ignore the external interrupt
equipment and will not shut down!
• Remove jumper 1 on the corresponding control board (to be done only by qualified service
personnel)!
Pin
Signal form Designation
Drawing
A
Output
Connection for the cable screen
B
Input
Digital signal controls a configurable function
[1]
C + J
Output
Switching output in case of device error (relay contact)
[1]
D + G
Output
Current-flows-signal I>0 (relay contact).
Closed
≙
welding current flows.
E + R
Input
Emergency stop for switching off the power source
(activation by competent service personnel)
F
Input
Control voltage specification for the secondary current
(0-10 V)
[1]
H
Output
Actual value of the welding voltage
(0 V - 10 V
≙
0 V - 100 V)
K
Output
Reserved for special applications
L
Input
Start / stop welding current (+15 V
≙
Start,
0 V
≙
Stop)
M
Output
Power 15 V( max 75 mA)
N
Input
Control voltage specification for the main current
(0-10 V)
P
Input
Analogue signal controls a configurable function
[1]
S
Output
Reference potential for signals from pins B, F, H, K, L,
M, N, P and T
T
Output
Actual value of the welding current
(0 V - 10 V
≙
0 A - 1000 A)
U
-
Not assigned
V
-
Not assigned
[1]
Configurable in the machine configuration menu
