Miller Electric Intellifire 250 manual Diagnostic LED’s

Page 19

5-8. Diagnostic LED’s

1

	FAULT		LIMIT	2
				2
		CURRENT
		SOURCE
				3
		OVER
		FREQUENCY		4
		FREQUENCY
10		UNDER		5
				5
		CURRENT		6
				6
7		TANK VOLTAGE		9
				9
12 LINE VOLTAGE			OVERTEMP
11	LOAD			8
	LOAD
	GROUND FAULT		CONTACTOR

1 Diagnostic LED’s

Use diagnostic LED’s to determine operating condition of power source.

2Current Source Limit: 110 A Fault: 115 A

3Over Frequency Limit: 50 kHz Fault: 55 kHz

4Under Frequency Limit: 10 kHz Fault: 5 kHz

5Current Reactive Limit: 700 A

6Tank Voltage Limit: 670 V Fault: 1100 V Peak

7Line Voltage Fault: ±20 %

8Contactor

Lights when contactor is energized. 9 Over Temp

Lights when contactor is energized and over temperature condition is present. Also indicates top cover is removed from unit.

10 Tank Current

Fault Value Preset At Factory 11 Ground Fault

Lights when the ground fault circuitry detects a short in the output circuit between the workpiece and power source, or when test switch is pressed to test ground fault circuitry.

12 Load

Lights when no load or insufficient load is present to couple with the coil or blanket.

Ref. ST-801 826-B

OM-184 227 Page 15

Image 19

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