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Wiring instructions
1) Use crimping terminals with insulation sleeve to wire the power supply and motor.
2) Application of power to the output terminals (U, V, W) of the inverter will damage the
inverter. Never perform such wiring.
3) After wiring, wire offcuts must not be left in the inverter.
Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter
clean.
When drilling mounting holes in an enclosure etc., take care not to allow chips and
other foreign matter to enter the inverter.
4) Use cables of the recommended size to make a voltage drop 2% maximum.
If the wiring distance is long between the inverter and motor, a main circuit cable
voltage drop will cause the motor torque to decrease especially at the output of a
low frequency.
5) For long distance wiring, the fast-response current limit function may be reduced or
the devices connected to the secondary side may malfunction or become faulty
under the influence of a charging current due to the stray capacity of wiring.
Therefore, note the maximum overall wiring length.
6) Electromagnetic wave interference
The input/output (main circuit) of the inverter includes high frequency components,
which may interfere with the communication devices (such as AM radios) used near
the inverter. In this case, install a FR-BIF(-H) optional capacitor type filter (for use
on the input side only) or FR-BSF01 or FR-BLF common mode filter to minimize
interference.
7) Do not install a power capacitor, surge suppressor or capacitor type filter (FR-BIF(-
H) option) on the output side of the inverter.
This will cause the inverter to trip or the capacitor and surge suppressor to be
damaged. If any of the above devices are connected, remove them. (When using
the FR-BIF(-H) capacitor type filter with a single-phase power supply, connect it to
the input side of the inverter after isolating the T phase securely.)
8) Before starting wiring or other work after the inverter is operated, wait for at least 10
minutes after the power supply has been switched off, and check that there are no
residual voltage using a tester or the like. The capacitor is charged with high
voltage for some time after power off and it is dangerous.
Summary of Contents for FR-S500 Series
Page 178: ...168 MEMO ...
Page 215: ...205 APPENDIX APPENDIX 1 Parameter instruction code list 206 ...