Thermal Arc C/W VFE 4C HS III, Operation Manual

Page: 29 / 74

A1. ON/OFF Switch This switch connects the Primary supply voltage to the power
supply when in the ‘ON’ position. This enables the Power Supply.
A2. Course Voltage Control Switch A 3 position Voltage Control switch , which increases
the voltage as it is rotated in the clockwise direction.
(please ensure this switch is not turned when
the machine is under load)
.
A3. Fine Voltage Control Switch A 10 position Voltage Control switch increases the voltage
as it is rotated in the clockwise direction.
(please ensure this switch is not turned when the machine
is under load).
A4. Negative Welding Terminals Th ree outlet terminals which offers negative polarity from
the P ower Source via three inductances of different values through the se heavy duty DINSE
terminals to the Metal plate via an earth lead. It is essential, that the male plug is inserted and
turned securely to achieve a sound electrical connection.
A6. Control Panel see section 5.01 for further information
A7. Euro Torch Adaptor Euro torch connection that accepts Euro style MIG torches.
A8. Wire Feed Motor & Feed Roll Assembly
A9. Wire Spool Holder
A10. Gas inlet The Gas Inlet connections is a 3/8 BSP male gas fitting supplied via the
gas hose on the interconnecting lead.
A11. Primary Power Cable The input cable connects the Primary supply voltage to the
equipment, see Section 3.04 for electrical input requirements.
A12. Wire Feed Holder Bolts to underside of WFU to support the WFU
A13. Wire Feed Holder
Bolts to top of Power Source to support the WFU
A14. Positive Welding Terminal The Positive welding current flows from the Power
Source via the heavy duty DINSE terminals to the WFU via the interconnecting lead. It is
essential, that the male plug is inserted and turned securely to achieve a sound electrical
connection.
A15. Wirefeeder Control Socket outlet This Female 7 pin receptacle is used to connect
a Wirefeeder to the welding power Source circuitry: To make connections, align keyway,
insert plug, and rotate threaded collar fully clockwise. The socket information is included in
the event the supplied cable is not suitable and it is necessary to rewire a plug. (See
following page).
Pin 1 - 24Vac supply to WFU
Pin 2 - 0Vac
Pin 3 - Contactor return
Pin 4 - Thermal overload Signal
Pin 5 - Cooling error signal
Pin 6 - Welding v
Pin 7 - Ground connection
23