AC power supply PCRM series
Appendix
Rated output (power) capacity or power capacity
Maximum peak current (AC mode only)
Output voltage waveform distortion ratio
Capacitor inputtype rectifying (circuit) load
■ Rated output (power) capacity or power capacity
The maximum value (unit: VA) of the output power capacity that can be continuously supplied when the output voltage is 100 V to 135 V (for the 135 V range) or 200 V to 270 V (for the 270 V range) and the output frequency is 40 Hz to 500 Hz in AC mode or when the output voltage is 100 V to 190 V (for the 135 V range) or 200 V to 380 V (for the 270 V range) in DC mode.

PCR500M 
PCR1000M 
PCR2000M 
PCR4000M 
Power capacity 
500 VA 
1000 VA 
2000 VA 
4000 VA 
The power capacity in DC mode is 80 % of that of AC mode.
The maximum value (unit: A) of the output current (rms value) that can be continuously supplied when the output voltage is 100 V (for the 135 V range) or 200 V (for the 270 V range) and the output frequency is 40 Hz to 500 Hz in AC mode or when the output voltage is 100 V (for the 135 V range) or 200 V (for the 270 V range) in DC mode.
The maximum current in DC mode is 80 % of that of AC mode.
• For AC mode
The maximum continuous value of the output current (rms value) that has been reduced by the output voltage.
• For DC mode
The maximum continuous value of the output current (unit: A) that has been reduced by the output voltage.
■ Maximum peak current (AC mode only)
The maximum continuous value (unit: Apeak) of the output current (peak value) that the PCRM can supply to a capacitor inputtype rectifying load when the output voltage is 100 V to 135 V (for the 135 V range) or 200 V to 270 V (for the 270 V range) and the output frequency is 40 Hz to 500 Hz.
Maximum peak current = Rated maximum current (rms value) x 3
■ Output voltage waveform distortion ratio
The total harmonic distortion factor (%) of the output voltage waveform when the output voltage is 50 V to 135 V (for the 135 V range) or 100 V to 270 V (for the 270 V range) and the load power factor is 1.
■ Output voltage response time
The time (unit: µs) for the output voltage change to exceed 10 % of the overall change and return within 10 % of the overall change, when the output current percentage is changed from 0 % to 100 % given that the output voltage is 100 V (for the 135 V range) or 200 V (for the 270 V range) and the load power factor is 1 (in the AC mode).
The power factor is the ratio of the active power with respect to the apparent power. It indicates the level of degradation in the efficiency caused by the phase difference between the AC voltage and AC current.
The form factor is the ratio of the rms value with respect to the average value.
The crest factor is the ratio of the rms value with respect to the peak value (crest value) of the waveform.
The crest factor is 1.41 for sine waves.
A circuit used to reduce the input current distortion factor (harmonic current). This filter is used in the input powersupply block of the PCRM. It is a switchingcontrolled active filter. The use of the filter improves the power factor (0.9 (typical value)).
■ Capacitor inputtype rectifying (circuit) load
This is a load whose rectifier circuit part is constructed as shown below. The rectifier circuit is used to convert the input AC voltage into the DC voltage that the device needs to operate.
The peak input current is normally approximately two to four times the rms value. The conduction angle (the period that the current is flowing for) centered on the peak output voltage (phase angle of 90 deg or 270 deg) is approximately 20 deg to 90 deg.
AC power supply PCRM series
Appendix