NF HVA4321, Инструкция по эксплуатации

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4.4 Operation example in constant c constant voltage mode
HVA4321
4-48
4.4.3 Power supply and internal high voltage DC power supply
a) Power supply
Before supply of power, check again if the HIGH VOLTAGE POWER SUPPLY switch is OFF (button is
pressed). After checking connection to load, connection to the signal source and if the panel settings are
correct, turn ON the POWER switch of the unit.
When the power is ON, the fan at the back starts operation.
On the panel surface:
・ The OFF lamp of the signal switch blinks.
・
The OFF LED of the internal high voltage DC power supply lights.
Figure4-62. Power supply
b)
Supply of high voltage DC power
Turn the HIGH VOLTAGE POWER SUPPLY switch to the right and unlock it. Turn ON the internal high
voltage power supply. The ON LED of the internal high voltage power supply lights. In several seconds,
the SIGNAL switch OFF lamp changes from blinking to lighting.
When the power is supplied, the internal high voltage DC power supply is always OFF regardless of
ON/OFF status of the HIGH VOLTAGE POWER SUPPLY switch. If this switch is ON, turn OFF once
and turn it ON again.
POWER
DC BI AS
0 - 10 V
I
O
オンにし ます。
Turn ON.