inoMIG 350/400
Operating manual
Page 49
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32. Wire feed unit
100W Motor
Exchange of feed-roller (4)
Depending on the wire used, the respective
feed roller with matching groove must be set
in. To turn or exchange the feed-
rollers, remove the knurled
screw (5).
Ensure that the groove of the feed-roller is in
true alignment with the wire guide tube (6).
The contact pressure exerted by the feed-
rollers is regulated via a star grip (7) in such a
way that steady conveyance of the wire is
ensured and, if the wire is held at the contact
tip nozzle, it slides without buckling.
Wire spool brake
The wire-holding arbour (2) includes a spool
brake to prevent the wire spool (3) from
running on when the wire-feed motor is stopped. The braking effect is increased by turning the hex socket screw
(1) in a clockwise direction.
33. Remote control socket (Option)
Pin
Name
Description
A / 1
Actual voltage
(U-actual)
Output signal between 0V and +10 V.
The ratio between welding voltage and signal voltage is 10:1.
Example: 40V welding voltage = 4.0V signal voltage
Input impedance should be
≥
10k. The reference potential is pin 3
B / 2
Actual current
(I-actual)
Output signal between 0V and +10 V.
The ratio between welding current and signal voltage is 100:1.
Example: 100A welding current = 1V signal voltage
Input impedance should be
≥
10k. The reference potential is Pin 3
C / 3
GND
Ground potential for Pin 1, 2, 4, 5
D / 4
Master (U)-
voltage 2
Input signal for the function of EC 2
1) To contact a potentiometer (between pin 3 (0V) and pin 6 (+10 V)).
The output of the potentiometer changes this value.
2) Similarly, a control voltage between 0 V and a maximum of +10 V can be applied
(reference point Pin 3).
E / 5
Master (U)-
voltage 1
Input signal for the function of EC 1
1) To contact a potentiometer (between pin 3 (0V) and pin 6 (+10 V)).
The output of the potentiometer changes this value.
2) Similarly, a control voltage between 0 V and a maximum of +10 V can be applied
(reference point Pin 3).
F / 6
+10V
+10V reference voltage output for potentiometer control Pin 4, 5
The maximum output current is 10mA.
G / 7
+24V
+24V reference output voltage for the switch signals Pin 8, 9, 10
The maximum output current is 10mA
H / 8
T – BT
MIG / TIG torch trigger input signal, supply to pin 7
Start signal for automation.
J / 9
T – up
Input signal for an up / down torch, here the increasing (up) signal, supply to pin 7
K / 10
T – down
Input signal for an up / down torch, here the decreasing (down) signal, supply to pin 7
L / 11
Current flow
Potential-free contact. If a current flow is detected, the contact is closed.
The contact opens when the current flow is interrupted.
Maximum voltage 48V, maximum current 1A
M / 12
Current flow
13-17
free
Not used!
For more information on the circuit diagram.
