47
/
52
NOTE
The component indicated with acronym "
F3
", located on the connector side of the control unit, is a
delayed fuse, non-resettable, which supports a max. current of 3.5 A. If the ON LED does not light up,
check the status of the aforesaid component.
D_STROKE
COM1
This input is used for the manual control of the double stroke in welders
fit with this function.
27
29
BIC2_NC
COM1
Not used.
28
29
TERM
FLUX/TERM
COM1
This input can be used for connecting a thermostat (pin 30-32). If a flow
regulator is also present, the input must be connected in series with the
thermostat, i.e. the thermostat with pin 30-31 and the flow regulator
with pin 31-32.
30
31
32
AUX3
COM1
This input allows an external device to stop the welding cycle during
the squeeze phase. It can be used as an interlocking input or for
connecting safety devices such as for instance flow regulators or
pressure switches. The contact connected to it should be the normally
open type and is activated when closed on COM1.
33
34
BIC2_NO
Input for the hand-operated start cycle push buttons. The welding cycle
starts when BIC1_NO and BIC2_NO are closed simultaneously or
closed in sequence within a maximum time of 0.5 secs.
35
VAUX
24 Vdc output. It indicates that the control unit is powered and ready to
receive a start cycle command. This output can be used to connect a
valve for the opening of the cooling circuit. This is a suitable command
for piloting a 24Vdc coil max. 5 W.
37
SV1
COM2
Connect to the solenoid valve that actuates the main cycle. This is a
suitable command for piloting a 24Vdc coil max. 5 W.
38
39
SV2
COM2
Connect to solenoid valve 2 (BACK PRESSURE). This is a suitable
command for piloting a 24Vdc coil max. 5 W.
40
41
SV3
COM2
SV4
Connect to solenoid valve 3 (FORGING) and 4 (DOUBLE STROKE).
This is a suitable command for piloting a 24Vdc coil max. 5 W.
42
43
44
SV PROP-
SV PROP+
This is an output that is connected to the piloting card of the
proportional solenoid valve. Option art. 50193.
45
46
EMERGENCY
EMERGENCY
Emergency input. An emergency button can be connected to these
inputs, the contacts of which should open if faults occur. The
emergency procedure and consequently the opening of these inputs
cut voltage to all the outputs.
47
48
ROG
AGND
The current transducer (Rogowski ring) must be connected to this
analog input.
49
50
SHIELD
Shield for transducer cable.
51
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