Frequency Select Switch And Volts Adjust; Frequency Select Switch; Voltage Adjust Controls - Pacific Power Source MS SERIES Operation Manual

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SECTION 4

4.3.3 FREQUENCY SELECT SWITCH AND VOLTS ADJUST

These switches also control the operation of the Power Source. The operator

must be fully familiar with these switches and their function prior to operating the

Power Source.

The primary of the Frequency Select Switch is to control the internal Oscillator. It

also is used to determine whether the cabinet is a MASTER or SLAVE.

50, 60 and 400

VAR

EXT

SLAVE

The Voltage Adjust Controls control the internal Oscillator output voltage. The

center control is for all three output phases. ØB and ØC are for Phase B and

Phase C trim adjustments only. These controls only work if the cabinet is a

master and the internal oscillator is selected.

FIGURE 4.3.3

These are fixed, crystal controlled frequencies for the

internal oscillator.

This is a 47 to 500 Hz variable frequency control for the

internal oscillator.

This selects an external oscillator input for the Power

Source.

In this position this cabinet is a SLAVE to another master in

a Multiple Cabinet System. One and only one cabinet may

be MASTER in a Multiple Cabinet System. The MASTER

Frequency shall control the entire Multiple Cabinet System.

FREQUENCY SELECT AND VOLTS ADJUST

4-16

OPERATION

Document # 126050-10 Rev E

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