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11.16 AGC
When the AGC (Automatic Gain Control) is on, the detection point voltage is always measured, and
the output voltage is continuously corrected so that its effective value is equal to the output voltage
setting value. The fluctuation of the detection point voltage can be suppressed even when the load is
fluctuated. The detection point can be switched between the sensing input terminal (remote sensing
on) and the output terminal (remote sensing off). When setting remote sensing to FB, AGC cannot
be set, see 11.15.
Effective only for AC-INT, AC-VCA, AC-SYNC, DC-INT, and DC-VCA and when the waveform is
sine wave or DC. It is turned off when the Sequence or Simulation is selected. It cannot be selected
when the Autocal is set to on.
Response time
Operation range
Calibration range
Accuracy
11.17 Autocal (Output Voltage Compensation)
When the Autocal (Automatic Calibration) is on, the detection point voltage is always measured, and
the output voltage is continuously corrected so that its effective value is equal to the output voltage
setting value. The ratio (correction factor) of the detection point voltage to the output voltage setting
value is used until the Autocal or the power is turned off. Therefore, the detection point voltage is
not necessarily maintained if the load changes while the Autocal is on. The detection point can be
switched between the sensing input terminal (remote sensing on) and the output terminal (remote
sensing off). When setting remote sensing to FB, AGC cannot be set, see 11.15.
Unlike the AGC, it cannot follow a load fluctuation because it does not keep track of the voltage. On
the other hand, when the load is stable, it has a merit of short response time on changing the output
voltage setting.
Effective only for AC-INT, AC-VCA, AC-SYNC, DC-INT, and DC-VCA and when the waveform is
sine wave or DC. It is turned off when the Sequence or Simulation is selected. It cannot be selected
when the AGC is set to on.
Restriction when on
Calibration range
*42
Accuracy
*42
*42: The values of the calibration range and accuracy are the ones at the time when the Autocal is
turned on.
DP420LS/DP480LS
Single
Within 100 ms (typ.)
(DC/50 Hz/60 Hz, at the rated output voltage)
The output voltage setting is 8 V or higher
Within 10 % (difference between the output voltage and measured value)
The output voltage should be within the allowed voltage setting range of the
product.
Within 0.5 V / 1.0 V
(in the case of DC or 40 Hz to 550 Hz, 50 V or higher output voltage, resistance
load, the output current is the maximum current or less)
Single
The output voltage setting is 8 V or higher
Within 10 % (difference between the output voltage and measured value)
The output voltage should be within the allowed voltage setting range of the
product.
Within 0.5 V / 1.0 V
(in the case of DC or 40 Hz to 550 Hz, 50 V or higher output voltage,
resistance load, the output current is the maximum current or less)
11.16 AGC
Polyphase system
Polyphase system
249
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