Ulvac PRC-003A, Instruction Manual

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YO99-0874-DI-002-18
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considering the voltage drop.
CAUTION
Wiring is long, please check the voltage drop across the wire, or conform to
the following calculated value. If there is a risk of the voltage drop, please
increase the size depending on the length of the cable wire.
Motor rated voltage (V) × 0.02
≧
Wiring distance √ 3 × wire resistance (Ω / km) × wire length (m) × motor rated
current(A) × 10 -3
※ Motor rated current, refer to " Table 6 Rated current value of the PRC
series standard motor "
※ The wiring distance between the inverter and the motor, please be less
than or equal to 50 m.
5.4.1 Setting of Motor Controller (Atmospheric Pressure Actuating
Type)
There are Three kinds of inverters
［
FR-ER520 Series (Manufacturing before December,2004) and
FR-F520J Series (Manufacturing after December,2004) and FR-D720 Series (Manufacturing after
April,2009)
］
which use it by PRC Series. Please set it after confirming the model of the control equipment.
For the operation of the controller and electrical wiring, refer to the instruction manual for the inverter.
Troubles imputable to control by other than the standard controller and to
change of setting are not covered by this warranty.
Do not change the factory setting and starting control wiring (STF). When
starting the pump by remote operation, however, disconnect the shorting wire
of (STF) and turn ON/OFF the mechanical no-voltage contact to start/stop.
CAUTION
When you use the atmospheric actuation specification, in the control
equipment used in the PRC series, an appropriate setting for each pump
operation is performed. If you examine the special use method (When
changing the parameter of the control equipment), consult with our company.
Furthermore, this pump guarantees reliability by the operation frequency
50Hz ～ 60Hz.
CAUTION