2-9
No output circuit filter inserted
Output circuit filter inserted
• Do not connect a power factor correcting capacitor or surge absorber to the inverter’s
output lines (secondary circuit).
• If the wiring length is long, the stray capacitance between the wires will increase,
resulting in an outflow of the leakage current. It will activate the overcurrent protection,
increase the leakage current, or will not assure the accuracy of the current display. In
the worst case, the inverter could be damaged.
• If more than one motor is to be connected to a single inverter, the wiring length should
be the length of the wires to the motors.
Driving 460 V series motor
• If a thermal relay is installed in the path between the inverter and the motor to protect
the motor from overheating, the thermal relay may malfunction even with a wiring
length shorter than 164ft (50m). In this situation, add an output circuit filter (option) or
lower the carrier frequency (Function code F26: Motor sound (Sound tune)).
• If the motor is driven by a PWM-type inverter, surge voltage that is generated by
switching the inverter component may be superimposed on the output voltage and
may be applied to the motor terminals. Particularly if the wiring length is long, the surge
voltage may deteriorate the insulation resistance of the motor. Consider any of the
following measures.
- Use a motor with insulation that withstands the surge voltage. (Use a motor 1300V
insulation.)
- Connect an output circuit filter (option) to the output terminals (secondary circuits) of
the inverter.
- Minimize the wiring length between the inverter and motor (65ft (20m) or less).
Wiring length for EMC filter built-in type
• When the wiring length between the inverter and motor exceeds 33ft(10m), the filter
circuit may be overheated and damaged due to increase of leakage current. To reduce
the leakage current, set the motor sound (carrier frequency) to 2 kHz or below with
function code F26.
Motor
164ft (50m) or less
Output circuit filter
1300ft (400m) or less
16ft (5m) or less
Motor
Power
supply
Inverter
Power
supply
Inverter
Summary of Contents for Frenic Mini FRN001C1E-2U
Page 85: ...5 4 ...
Page 88: ...5 7 ...
Page 89: ...5 8 C codes Control Functions of Frequency ...
Page 92: ...5 11 J codes Application Functions y codes Link Functions ...
Page 167: ...8 6 8 3 Common Specifications ...
Page 168: ...8 7 ...
Page 171: ...8 10 8 5 External Dimensions 8 5 1 Standard models ...
Page 172: ...8 11 ...
Page 173: ...8 12 8 5 2 Models available on order EMC filter built in type ...
Page 174: ...8 13 ...
Page 192: ...MEMO ...
Page 193: ...MEMO ...
Page 194: ...MEMO ...
Page 196: ...Fuji Electric FA Components Systems Co Ltd Fuji Electric Corp of America 2007 06 F07 F07 00CM ...