Panasonic VF200, Инструкция по эксплуатации

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3. Wiring
3.3.2 Precautions on Wiring Main Circuit
■ Precautions on Wiring
To avoid mistakes in wiring and operation, be sure to observe the following
guides.(Failure to do so may damage the unit.)
·
Always connect the power source to input terminals (R/L1, S/L2, T/L3), and
connect the motor to output terminals (U,V,W).
·
Use round crimp terminals with sleeve for power source and motor
connections. Select crimp terminals according to wire sizes and screw sizes.
·
After wiring main circuit, confirm the tightening condition of terminals.
·
Main circuit must be wired prior to control circuit. Otherwise, re-tightening
operation is not possible after control circuit wiring is completed.
·
When connecting directly to a transformer of large capacity (500 kVA or more),
always install an AC reactor on the input side of the inverter.
Note 1: It is recommended to use teflon insulated wire (600 V, Class 2,
allowable operating temperature up to 75 °C) for main circuit wiring.
Note 2: Use wires with larger diameter if the wiring distance is long.
Note 3: If the overcurrent trip of the circuit breaker is magnetic type, the
device could become overheated due to higher harmonics. Use a
load rate of 50% or lower in this case.
Note 4: If a circuit breaker for motor protection is in use, remove it.
Note 5: Always connect protective devices against overcurrent, short-circuit
and current leakage on the input side.
■
Precautions on Using Regenerative Brakes
·
When using regenerative brakes, set the parameter P019 to "0". Since the
factory setting is "1", the brakes will not be activated.
·
Specifications for regenerative brakes are shown as follows. Carefully
consider the operation conditions before using them. Note that the inverter
could be damaged if a brake outside specifications is used.
Max. duty factor (%ED): 5%
·
Max. operating time: 5 s
·
Max. torque: 100%