CHAPTER 3: WELDING SYSTEM SET-UP
2 KHZ INVERTER WEDLING POWER SUPPLY
3-16
990-057
Non-Force Fired, Air Or Cam Actuated Weld Head System
PLC to Power Supply Electrical Connections (Figure 3-6)
1
Connect your Programmable Logic Control
(PLC) or Host Computer output control
signals to the Power Supply inputs using
reed relays or the open collector of an opto-
coupler. The emitter of each opto-coupler
must be connected to The Power Supply
Rear Panel Control Signals connector, Pin
11.
For a complete description of how to
program Relay 1 and Relay 2, reference
Chapter 5, Programming Modes, Output
Relays
.
For a complete description on how to
connect for RS-485 Data Communications,
reference
Appendix B, RS-485 Connection
.
2
All weld schedules must be entered and
saved using the Power Supply Front Panel
keys. After saving the desired weld
schedules, each schedule can be recalled
prior to initiating the welding process cycle
by closing the binary Remote Schedule
Select lines according to the following
table:
Figure 3-6. PLC to Power Supply
Electrical Connections
WELD SCHEDULE
20
Pin 1
21
Pin 2
22
Pin 3
23
Pin 4
24
Pin 12
25
Pin 5
26
Pin 14
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
2
0
1
0
0
0
0
0
3
1
1
0
0
0
0
0
4
0
0
1
0
0
0
0
Binary progression from 5 to 126
127
1
1
1
1
1
1
1
NOTE:
0 = Open; 1 = Closed
