Tweco 150XL CE PAK Master - Manuel (Page 27)

Manual 0-2826 3-9 INSTALLATION
3.10 External Cable Connections
External control signal connections can be made to the
Rear Panel of the power supply. Connections can be made
to interface with CNC Controls, Standoff Control SC11
or Remote Hand Pendant.
Depending on the option installed determines how the
option is connected to the Power Supply.
A. Computer Control Interface (CNC)
NOTE
Used when Standoff Control SC11 is not used.
The computer control interface (CNC) allows an auto-
mated system to interface with a computer or other con-
trol device.
CNC cables can be interfaced to the Power Supply using
one of the following methods:
NOTE
Refer to Appendix 6 for CNC Interface Diagram.
• Connector (J22) at the rear of the Power Supply
• Internal terminal block in the Power Supply
Depending on the equipment ordered and the cables sup-
plied connect the CNC cable per one of the following:
1. Using supplied CNC cable
Connect the supplied Power Supply/CNC Cable
to the Power Supply rear panel connector J22
(CNC Control).
A-02879
J22
CNC Connector
CNC or Remote Hand
Pendant Control Cable
Figure 3-7 Using CNC Connector (J22)
2. Using customer supplied CNC Cable
a. Remove the Right Side Panel from the Power Sup-
ply as viewed from the front of the unit.
b. Remove the 7/8" knockout from the Rear Panel and
install a 1/2" NPT strain relief (not supplied) into the
hole.
A-02880
CNC Knockout
1/2" (12.7 mm)
Strain Relief
(Customer Supplied)
Figure 3-8 Rear Panel Knockout Location
c. Locate the internal terminal block (TB) on the
Filter/Voltage Divider PC Board, located on the
inside of Rear Panel below the Plasma gas so-
lenoid valve. The terminal block (TB) is
plugged into a socket on the Filter/Voltage Di-
vider PC Board.
d. Feed the CNC cable (see Note) through the strain
relief at the rear of the Power Supply, routing
the cable above the existing wiring to the Termi-
nal Block (TB) on the Filter/Voltage Divider PC
Board.
NOTE
The CNC Cable to TB connections must be rated
at 600V.
e. Remove the terminal block from the socket and con-
nect the CNC cable to the terminal block (TB) per
the following chart (see NOTES after chart):