SECTION 3 − INSTALLATION

3-1. Specifications

 

 

 

Maximum

 

Amperes Input

 

 

Rated Welding

Voltage

Amperage

 

at Rated Load

 

 

Open-Circuit

IP Rating

Output 50/60 Hz

 

 

Output

Range

Range

 

 

Voltage DC

 

 

 

 

 

 

 

 

400 V

KVA

KW

 

 

 

 

 

 

 

 

 

 

 

 

 

300 A @

 

 

 

 

17.0

12.4

11.5

32 Volts DC,

10 − 35

5 − 400

90

23C

(0,15*)

(0,09*)

(0,04*)

60% Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*While idling

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3-2. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating.

If unit overheats, output stops, a Help message is displayed (see Section 5-3), and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle be- fore welding.

Y Exceeding duty cycle can damage unit and void war- ranty.

60% Duty Cycle

6 Minutes Welding

4 Minutes Resting

Overheating

0

A

 

15

 

OR

Minutes

Reduce Duty Cycle

 

Ref. SA-178 651

OM-224 043 Page 9

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Miller Electric XMS 4000 manual Installation, Specifications, Duty Cycle And Overheating