AC power supply PCR-LE2 series

Basic


Displaying Measured Values

You can monitor the present output value. When the output is off, this is nearly 0.

“Displaying the voltage

“Load level meter

“Displaying the current, power, and power factor

Displaying the voltage

The measured voltage is displayed in the status, measured-value, and setting display area.

The voltage is displayed as an rms value, peak value, or average value.

To switch the display, press V-MEAS (SHIFT+V) to select the item that you want to display.

During single-phase, three-wire output and three-phase output, you can select to display phase voltage or line voltage.

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Item

Title

Unit

Description

Valid modes

RMS

V-Meas

V rms

Displays the rms voltage

All

PEAK

V pk

Displays the peak voltage

AVE

V ave

Displays the average voltage

DC and AC+DC

LINE*1

ON

V-Line

V rms

Displays the line voltage

AC and DC

OFF

Displays the phase voltage

*1. Single-phase three-wire output or three-phase output only

Line voltage display and Phase voltage display

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V-LINE

OFF (Phase voltage display)

ON (Line voltage display)

When a single phase is displayed

35510.jpg U example

35504.jpgU-V example

When all phases are displayed (single-phase, three-wire output)

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When all phases are displayed (three-phase output)

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Load level meter

The load level meter displays the ratio of the output current (which is detected as the current flowing through the load) to the rated current on a bar graph. This can be used to determine the approximate output current supply capability. The full scale of the load level meter is 1.1 times the rated current or the current limit, whichever is less.

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During single-phase, three-wire output, the load level meter displays the U phase at the top and then the V phase.

During three-wire output, the load level meter displays the U phase at the top followed by the V phase and W phase.

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The full scale bar (the right-most bar that lights red) of the load level meter lights on the verge of an overload.

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When the PCR-LE is on the verge of an overload, the internal temperature increases. Even if the load is reduced, the full scale bar may continue to light dimly in red. When cooling is complete, the full scale bar turns off.

If overload conditions occur repeatedly while the full scale bar is lit, an alarm (ALM-06: OVERLOAD) may be generated.

Rated current and load level meter display

The output current varies depending on the load. The rated current is automatically derated (reduced) depending on the output conditions (output voltage, frequency, and load power factor).

For details of rated output current, see ”About the output and the load”.

The rated current is automatically derated (reduced) depending on the output conditions (output voltage, frequency, and load power factor).

Examples of calculating the rated currents for single-phase three-wire output and three-phase output for the PCR6000LE2 are given below.

If the output phase voltage is 80 V, the load power factor is 0.6, and the output frequency is 50 Hz,

the rated current is 20 A × 0.825 = 16.5 A.

If the output phase voltage is 250 V, the load power factor is 0.4, and the output frequency is 60 Hz,

the rated output current is 2000 W/250 V × 0.65 = 5.3 A.

If the output phase voltage is 80 V, the load power factor is 0.6, and the output frequency is 10 Hz,

the rated current is 20 A × 0.775 = 15.5 A (≤ 16.5 A).

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Displaying the current, power, and power factor

The rms current, peak current, average current, power, apparent power, or power factor is displayed in the status, measured-value, and setting display area.

To switch the display, press I/P/S/λ-MEAS (SHIFT+I) to select the item that you want to display.

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Item

Title

Unit

Description

Valid modes

RMS

I/P/S/λ-Meas

A rms

Displays the rms current

All

PEAK

A pk

Displays the peak current

AVE

A ave

Displays the average current

DC and AC+DC

P

W/kW

Displays the power

All

S

VA

Displays the apparent power

AC and AC+DC

λ

λ

Displays the power factor

TOTAL P*1

W

Displays the total power

All

TOTAL S*1

VA

Displays the total apparent power

AC and AC+DC

TOTAL λ*1

λ

Displays the total power factor

*1. Single-phase three-wire output or three-phase output only

Averaging the measured values

You can display the averaged measured values of the rms currents, peak currents, average currents, power values, apparent powers, and power factors.

Press I/P/S/l-MEAS (SHIFT+I), 1/2 (F6), and then AVERAGE (F4) to set whether averaging will be performed.

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Item

Title

Description

ON

Average

Values will be averaged. The number of values to average is 30 (moving average).

OFF

Values will not be averaged.

Holding the peak current

The peak current measurement is displayed as an absolute value of the maximum instantaneous current measured. In DC mode, even if you are generating negative voltage, the peak measured current is displayed as a positive value.

If you have selected the peak current measurement as the measured value that is displayed, you can hold the peak current measurement.

Press I/P/S/l-MEAS (SHIFT+I), 1/2 (F6), and then IPK TIM (F5) to set the hold time.

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Item

Title

Description

Valid modes

IPK TIM

IPk Time

Sets the hold time (0 s to 10 s or ∞).

If you use the numeric key pad to specify a value that is greater than or equal to 10, infinity (∞) will be specified.

All (only when the peak current measurement is being displayed)

Clearing the peak current

Press I/P/S/l-MEAS (SHIFT+I) and then PKCLR (F5) to clear the peak current.

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Item

Description

PKCLR

Clears the peak current

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AC power supply PCR-LE2 seriesAC power supply PCR-LE2 series
Basic