Amada 300 Series, Operation Manual

Page: 22 / 80

CHAPTER 2: GETTING STARTED
SERIES 300 FAST RESPONSE WELD HEAD SYSTEM
2-4 990-115
Section II: Power Supply Connections
Power Line Voltage, Current, and Wire Size Requirements
Use the values listed in table 2-2 to select the correct power line circuit breaker and wire gauge sizes for
installing the 350C Weld Head Control.
CAUTION:
The 350C Weld Head Control is assembled at the factory for operation at a specific input
power line voltage.
Serious damage can result if an input voltage is used other than the voltage for
which the Weld Head Control is wired.
Table 2-2. Input Power Circuit Breaker and Wire Size Recommendations
Service Voltage
(RMS)
Circuit Breaker
Current (RMS)
Copper AWG
Wire Gauge
Outside Wire
Dia.(in./mm)
115 15 Amps 12 0.083/2
208 to 230 6 Amps 12 0.083/2
Connector Functions
The functions and pin assignments of the
connector on the rear panel of the 350C Weld
Head Control are described in Appendix B.
Welding Transformer to Weld Head
Connections
Refer to figure 2-3.
1 Connect the upper weld cable to the negative
(-) terminal on the power supply or
transformer.
2 Connect the lower weld cable to the positive
(
+)
terminal on the power supply or
transformer.
Weld
Head
Power Supply or
Transformer
Upper Weld Cable
Lower Weld Cable
INPUT
+
_
Voltage Sensing Cable (Polarity not important)
Figure 2-3. Weld Head Connections to
Power Supply or Transformer