CHAPTER 2: INSTALLATION AND SETUP
CD-A DUAL PULSE RESISTANCE WELDING POWER SUPPLY
2-2
990-430
NOTE:
Unlike the
CD-A125A
and
CD-A300A
Power Supplies which have internal transformers, the
CD-
A1000A
has a large, external transformer that must be located within 2 meters of the power supply.
Utilities
Power Input Specifications
The Power Supply is shipped with a harmonized NEMA 5-15P IEC Power cord compliant for North
American 120VAC power sources. For operation in countries with different A.C. mains requirements,
replace the IEC power cord for an approved power cord for the country in which the unit is to be used.
The required connections for your power cable connector are described in
Appendix B, Electrical and
Data Connections.
Input power requirements for the Power Supply are as listed below.
Model
Input Voltage, 50-60 Hz,
Single phase (V
RMS
)
Circuit Breaker
Current (A
RMS
)
Copper Wire Gauge,
7 strands (AWG)
Wire Diameter
(mm)
All CD-A
Models
100-120
15
14
1.6
200-240
10
14
1.6
Compressed Air and Cooling Water
If compressed air or cooling water service is required for the weld head, please refer to the weld head
manufacturer’s user manual for service specifications.
Input Logic Configuration
The unit is shipped from the factory configured for
SINK = TRUE INPUTS
which is compatible with switch
closures to ground for activation (a “low” turns the function ON). The unit can also be configured for
SOURCE = TRUE INPUTS
which is commonly used with PLC’s and other external devices which supply
+24VDC to activate (a “high” turns the inputs ON). This configuration can easily be changed with the
use of the two selection switches located on the rear panel. (See Photo on following page)
14.3”
[363mm]
8.0”
9.0”
[229mm]
[203mm]
14.76”
[375.0mm]
15.25”
[387.4mm]
10.26”
[260.6mm]
