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AMETEK 2003RP User Manual

Page 61

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7.3.2 Poor Output Voltage Regulation

If the AC Power Source exhibits poor voltage regulation the following item may be at fault:

Table 7-3: Poor Output Voltage Regulation

CAUSE

SOLUTION

The Remote Sense lines are not
connected at the same point monitored by
the external voltmeter used for load
regulation check.

Connect AC voltmeter to Remote Sense
lines on the Rear Panel Power Output
terminal strip.

7.3.3 Distorted Output

Table 7-4: Distorted Output

CAUSE

SOLUTION

Power source is grossly overloaded.

Reduce load.

Input mains voltage is too low.

Verify at input terminal block that input
voltage is within specified limits.

The crest factor of the load exceeds 3:1.

Reduce load current peaks by reducing
load.

7.3.4 Unit Shuts Down After 3-5 Seconds

Table 7-5: Unit Shuts Down After 3-5 Seconds

CAUSE

SOLUTION

Output shorted.

Remove output short.

Output grossly overloaded.

Remove overload.

Operating load with too high inrush or start
up currents.

Consult factory for application advice.

7.3.5 No Output and No Lights on Front Panel

Table 7-6: No Output and No Lights on Front Panel

CAUSE

SOLUTION

Front panel power switched off.

Switch the breaker on.

No input power to the input connector.

Ensure correct input power.