Contact Input Circuit - YASKAWA JANCD-YEW01-E Instructions Manual

167646-1CD
Interface Board for Welding
Power Supply
7.2
Fig. 7-2: Example connection
i : "Input current per point" as cited in the table
7 Contact I/O Circuit

7.2 Contact Input Circuit

Contact Input Circuit
The contact input circuit includes 4 welding power source specific inputs
(gas shortage, wire shortage, arc establishment, arc failure).
Number of inputs and
application
Input method
Insulation method
Input current per point
Number of commons
Active level of the signal
Input threshold
Input delay
1 The communication cycle depends on the communication cycle setting of the
master side.
(1)
i
* Connect as indicated in (1) or (2).
The contact input circuit is provided with a capacitor of
0.1 μF as a noise control. When the input signal is ON,
NOTE
large inrush current flows. Therefore, when the current
capacity of the input circuit is small, current limit measures
such as installing resistors in series are required.
7-3
4 inputs GASOF Gas shortage detection signal
WIRCUT Wire shortage detection signal
ARCOF Arc failure detection signal
ARCACT Arc start detection signal
Sink/Source switching available
Insulation by photocoupler
6.9 mA (Type) (6.1 mA to 7.8 mA)
No common connection.
Independent for each output.
Contact ON = "0", Contact OFF = "1"
8.8 V (Type) (6.3 V to 11.4 V)
Ton = 850 μs + communication cycle
Toff = 958 μs + communication cycle
YEW01 side
(2)
+24V/+24VU
i
024V/024VU
HW1481264
1)
1)
0.1μF
Input circuit
FG
0.1μF
FG
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