Kikusui RC04-PCR-LA, Operation Manual

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4-44 Operation Method RC04-PCR-LA
4.3.11 Regulation Adjustment
With regulation adjustment, the output voltage is adjusted automati-
cally in accordance with output current. This function is used for the
same purpose as the sensing function. The sensing function measures
the sensing-point voltage in order to maintain a constant sensing-point
voltage; with regulation adjustment, the voltage drop caused by the out-
put current is calculated in order to raise the output voltage by an
amount equivalent to the drop. This function is used to stabilize voltage
at the load end without using sensing cables if there is a considerable
distance between the load and the PCR-LA AC power supply.
• When regulation adjustment is performed, the PCR-LA
power supply’s voltage stability accuracy, distortion factor,
and response time decrease below the normal capability.
Therefore, this function may not be suitable for some applica-
tions. Check the load conditions and other requirements care-
fully before use.
• Regulation adjustment is not available in the power line
abnormality simulation or sequence operation
Regulation Adjustment Setting Procedure
• Connect a load to the PCR-LA AC power supply in accordance
with “2.8 Connecting a Load” of the PCR-LA AC Power Supply
Operation Manual. Set OUTPUT to ON, and set output voltage to
the level required at the load end. At the load end, the voltage falls
below the voltage level at the PCR-LA power supply because of a
voltage drop caused by the load cable. Prepare a voltmeter to check
if the voltage at the load end has the required level. To perform reg-
ulation adjustment, the output current must be at least 1/10 of the
PCR-LA power supply rated current
• The voltage that can be corrected using the regulation adjustment
function is up to +10% of the PCR-LA power supply output volt-
age.
1. Press the ESC key to call the Home Position.
2. Press the MODE key.
The PCR-LA power supply will enter the key-lock mode automat-
ically.
NOTE