APPENDIX B: ELECTRICAL AND DATA CONNECTORS
UB25 LINEAR DC RESISTANCE WELDING CONTROL
990-665 B-7
I/O SIGNAL INTERFACE B CONNECTOR SPECIFICATIONS
PIN NO.
NAME VOLTAGE CURRENT I/O COMMENTS
1 ISCH0 +24 VDC 10 mA I Remote Schedule Select 2
0
2 ISCH1 +24 VDC 10 mA I Remote Schedule Select 2
1
3 ISCH2 +24 VDC 10 mA I Remote Schedule Select 2
2
4 ISCH3 +24 VDC 10 mA I Remote Schedule Select 2
3
5 ISCH4 +24 VDC 10 mA I Remote Schedule Select 2
4
6 ISCH5 +24 VDC 10 mA I Remote Schedule Select 2
5
7 ISCH6 +24 VDC 10 mA I Remote Schedule Select 2
6
8 IINHIBIT +24 VDC 10 mA I Stop next weld pulse
9 ISTOP +24 VDC 10 mA I User convenience stop function.
10 IFIRE +24 V 10 mA I Firing switch normally open
11 24VOUT +24 VDC 48 mA at < 24 VDC
O +24 VDC out through 200 ohm
12 FPOWER +24 VDC 20 mA I
Power can from internal or external
source for Footswitch, Firing Switch,
INOWELD.
13 24VGND GND +24 VDC GND
14 Not used
15 Not used
16 Not used
17 Not used
18 Not used
19 Not used
20 Not used
21 Not used
22 Not used
23 IFOOT1 +24 V 10 mA I Foot switch normally open, Level 1
24 IFOOT2 +24 V 10 mA I Foot switch normally open, Level 2
25 CGND CGND Chassis ground
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