Fuji Electric RHC-D 690V Series, Руководство пользователя

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3.3 Connection
3.3.1 General precautions about connection
• Connect the converter via a circuit protection
circuit breaker or earth leakage breaker to the
power supply.
Fire may result.
• Use the cables of the designated size without fail.
Fire may result.
• Connect the grounding cable without fail.
Electric shock or fire may result.
• Have wiring work done by a qualified electrician.
Electric shock may result.
• Check for power OFF (open circuit) before starting
wiring.
Electric shock may result.
• Install the main body first before starting wiring.
Electric shock or injury may result.
• Do not turn on the product with missing or
dropping parts or transportation damage.
Electric shock or fire may result.
1) Be sure to connect the power cables to main circuit
power terminals L1/R, L2/S, and L3/T of the PWM
converter. If the cables are connected to other
terminals, the PWM converter will be broken. Check
if the source voltage is within the allowable voltage
limits specified on the nameplate.
2) Connect the grounding terminal without fail to
prevent electric shock, fire or other disasters and to
reduce noise.
3) Use crimp terminals, which have high connection
reliability, to connect a terminal with a cable.
4) After finishing connections (wiring), check the
following items.
a. Correct connections
b. No missing connections
c. Short circuit between terminals or cables and
grounding fault
5) It takes long time until the smoothing
capacitors of the DC part of the main circuit and
filtering capacitors are discharged. To change
connections after turning the power off, use a
multimeter or the like to check if the DC voltage is
reduced to a safe voltage (25 VDC) after the
charge lamp is unlit. Before shorting a circuit, check
that the voltage is reduced to zero; otherwise the
remaining voltage (charge) causes a spark.
Figure 3.3-1 Charge Lamp
• Check if the phases and rated voltage of the product agree with the phases and voltage of the AC power supply.
Injury may result.
• Check that the DC terminals (P (+), N (-)) of the PWM converter are consistent with the polarity (P (+), N (-))
of the DC terminals of the inverter.
Accidents may result.
• Wiring of the PWM converter, filter stack, inverter and motor generates noise. Be careful of malfunction of
nearby sensors and devices.
Accidents may result.
Charge lamp
OFF
3-5