Lincoln Electric IM10018-A manual Connection of NA-5/-5R to the DC-600 VRD Power Source

CONNECTION OF NA-5/-5R TO THE DC-600 VRD POWER SOURCE

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		14-PIN
		RECEPTACLE
POWER SOURCE		CONTROL CABLE
	21	TO NA-5/-5R
		INPUT CABLE PLUG
		CONTROL CABLE

FOR CONTROL CABLE WITH 14 PIN MS-TYPE PLUG CONNECTOR

OR

FOR CONTROL CABLE WITH TERMINAL STRIP LEAD CONNECTORS

Do not operate with covers removed.

Disconnect power source before servicing.

Do not touch electrically live parts.

Only qualified persons should install, use or service this machine.

IDEALARC® DC-600 VRD

+21 - 21 41 4 2	31 32	75	76 77
N.F.			C
			B
			A
			32
			31
			2
			4
N.B. & N.C.			GND
NEGATIVE	POSITIVE		N.D.
			21
N.H.
			BOLT TO CABLES FROM NA-5/-5R
			WIRE CONTACT AS'BLY
N.A.			N.D. & N.F.
			TO WORK
			REMOTE VOLTAGE SENSING LEAD

Above diagram shows electrode connected positive. To change polarity, turn power off, reverse the electrode and work leads at the power source.

Refer to NA-5 or NA-5R Operating Manual for required NA-5 or NA-5R control box polarity connections. Also refer to note N.F.

FOR ADDITIONAL INSTALLATION INSTRUCTIONS, SEE NA-5 OR NA-5R OPERATING MANUAL.

For proper setting of switches on power source, see power source operating manual.

N.A. Welding cables must be of proper capacity for the current and duty cycle of immediate and future applications.

N.B. Extend lead #21 from control cable with terminal strip connectors or from 14-pin receptacle using #14 AWG or larger insulated wire physically suitable for the installation. An S16586-[LENGTH]

remote voltage sensing work lead may be ordered for this purpose.

Connect it directly to the work piece keeping it electrically separate from the welding work lead circuit and connection. For convenience, this extended #21 lead should be taped to the welding work lead. (If the length of work lead circuit is

short, and connections can be expected to be reliable, then control cable lead #21 does not need to be extended and can be directly connected to terminal #21 on the terminal strip. Note that this is not the preferred connection because it adds error to the NA-5/-5R voltmeter reading.)

N.C. Tape up bolted connection if lead #21 is extended.

N.D. Connect the control cable ground lead to the frame terminal

marked near the power source terminal strip. The power source grounding terminal (marked and located near the power

source input power connections) must be properly connected to electrical ground per the power source operating manual.

N.E. The jumpers on the NA-5/-5R voltage board must be connected as follows:

Connect red jumper to pin "S". Connect white jumper to pin "B".

When using NA-5/-5R controls above Code 8300, the NA-5/-5R Inch Down button will not operate unless a jumper is connected between the two

tab terminals, labeled "AUTO", located above the transformer on the NA-5/-5R Voltage P.C. board. This jumper, however, will disable the Cold Starting/Auto-Stop/Touching-Work feature of the NA-5/-5R,

permitting only Hot Starting techniques to be used.

N.F. If lead #21 is to be connected to the terminal strip, connect to the #21 terminal that matches work polarity. This connection must be changed

whenever the electrode polarity is changed.

N.G. For proper NA-5/-5R operation, the electrode cables must be snugged under the clamp bar on the left side of the NA-5/-5R control box.

N.H. Illustration does not necessarily represent actual position of

appropriate output studs. Refer to power source operating manual for more information.

10-30-98F

DIAGRAMS

S22979

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