Lincoln Electric IM490-C manual Input Voltage Reconnect Procedure, Input Fuse and Supply Wire

A-4 INSTALLATION A-4

POWER INPUT CONNECTION FOR 50/60 HZ MACHINES

1. Connect terminal marked	to earth ground
per National Electric Code.

2.Connect the supply lines to the line switch. Torque to 3.0 Nm.

3.Install in accordance with all local and national electric codes.

The Invertec V250-S machine is supplied with one cord connector. The cord connector provides a strain relief for the input power cord as it passes it through the rear access hole. On K1436-1, K1437-1 and K1437-3, the cord connector is designed for a cord diameter of 7.9 to 27.2mm (.310 to 1.070 in). On K1437-2 the cord connector is designed for a cord diameter of 11.4 to 20.0mm (.450 to .790 in).

Strip away outer jacket of cord, trim fillers and insert conductors through cord connector. The jacketed por- tion of the cord must go through the cord connector. Tighten both connector screws.

INPUT FUSE AND SUPPLY WIRE

Refer to the Technical Specifications page at the beginning of this chapter for the proper fuse sizes and supply cable sizes.

•Fuse the input circuit with recommended super lag fuses or delay type circuit breakers.

•Install the proper fuse in the fuse holder in the main disconnect panel.

INPUT VOLTAGE RECONNECT PROCEDURE

When received directly from the factory, units are con- nected for the highest input voltage, 440 VAC for 50/60 Hz machines and 460 VAC for 60 Hz machines. If 440 or 460 VAC is the desired input, then the machine may be connected to the power system with- out any setup required inside the reconnect door. However, verify the connection with the following pro- cedure. For other voltages refer to the instructions located on the Reconnect Panel Access Door or fol- low the instructions below.

CAUTION

Failure to follow these instructions can cause immedi- ate failure of components within the welder.

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1.Open the access door on the right side of the machine.

2.For 200-230: Position the large switch to 200-230.

For 380-460: Position the large switch to 380-460.

3.Move the “A” lead to the appropriate terminal. Refer to figure A.1 below.

RECONNECT PROCEDURE	. Disconnect input power before
1. BE SURE POWER SWITCH IS OFF.
	inspecting or servicing machine.

2. CONNECT LEAD 'A' TO DESIRED		. Do not operate with wraparound
INPUT VOLTAGE RANGE.			removed.
440-460V		. Do not touch electrically live parts.
		.	Only qualified persons should install,
	'A'
380-415V			use or service this equipment.
220-230V		IF MACHINE CEASES TO OPERATE (NO METER, NO FAN)
200-208V		AND THERE IS NO OTHER KNOWN FAILURE: CHECK FUSE;
		REPLACE WITH SPECIFIED FUSE.

3. POSITION SWITCH TO DESIRED INPUT VOLTAGE RANGE.

VOLTAGE=380-460V

VOLTAGE=200-230V

THE LINCOLN ELECTRIC CO . CLEVELAND, OHIO U . S . A .

A

S21230

Figure A.1 Input Voltage Reconnect Instructions

INVERTEC V250-S