Lincoln Electric CWT ATC-3, Operator'S Manual

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7
2.3 CABLES
Perform the following to install the cables and sensors for the ATC-3.
WARNING
Do not connect or disconnect the SLIDE MOTOR CABLE from the Slide or ATC-3
back panel with Power Applied to the control. Doing so will damage the control and
slide assembly.
• Connect the ATC
Slide Motor Cable
to the Motor mating connector on the rear of the
control enclosure (Fig 2-1) and to the Motor mating connector on the Slide Assembly.
•
The Volt-Amp Sensor should be installed as close as possible to the wire feed drive
motor assembly. The preferred location is at the attachment point of the weld cable to
the wire drive assembly. The Volt-Amp Sensor uses a Thru-Hole linear current
sensor. The sensor has a 1.0” (25mm) opening. The sensor must be installed
around the welding cable. To install the sensor, disconnect the welding cable from the
wire feed drive. Insert the cable thru the sensor. Observe the Current Direction
markings on the sensor for proper operation. Note: You may need to fabricate a pig-
tail adapter to connect double welding cables through the current sensor to the wire
feeder.
WARNING
Do not route the Sensor Cable with Welding Power Cables or AC Power cables.
FIGURE 2-5: Volt-Amp Sensor Installation
•
Connect the RED and BLACK leads of the Voltage Sensor in accordance with Table 1
below. Connect the lead for the Electrode as close as possible to the welding torch.
Sensor Cable
Voltage Sense
Terminal Block
To Power Source
Positive Power
Source Cable
Current Sensor
To Wire Feeder