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EX-TRAFIRE
®
45SD
Operator Manual, Revision T-5
3-29
System CNC interface connection
Each type of signal is available through the system CNC interface connector located on the rear
control panel� Use the chart with details of each signal type below when connecting the system
interface lead to the plasma arc power supply�
Signal:
START
(start plasma cutting)
Arc transfer
(start system motion)
Ground
Voltage divider
Type
Input
Output
Ground
Output
Note
Normally open�
Requires a dry
contact to close it�
Normally open�
Dry contact
with maximum
capacity of:
120 VAC/1 A
Divider arc voltage signal of:
20:1
21�1:1
30:1
40:1
50:1
(provides a maximum 10V)
Rear socket
connection
3, 4
12, 14
13
6 (+), 5 (-)
Internal
wire colours
yellow, yellow
white, white
green/
yellow
6 (red), 5 (white)
13
12
6
4
5
14
3
Set the DIP switches to one of the following settings� Basic settings is 50:1�
Turn OFF the power supply and disconnect the power lead prior opening the enclose�