Instruction manual
Table Of Contents
- SAFETY INSTRUCTIONS
- CONTENTS
- CHAPTER 1 OUTLINE
- CHAPTER 2 INSTALLATION AND WIRING
- CHAPTER 3 OPERATION/CONTROL
- CHAPTER 4 PARAMETERS
- CHAPTER 5 PROTECTIVE FUNCTIONS
- 5.1 Errors (Alarms)
- 5.2 Troubleshooting
- 5.2.1 Motor remains stopped.
- 5.2.2 Motor rotates in opposite direction.
- 5.2.3 Speed greatly differs from the setting.
- 5.2.4 Acceleration/deceleration is not smooth.
- 5.2.5 Motor current is large.
- 5.2.6 Speed does not increase.
- 5.2.7 Speed varies during operation.
- 5.2.8 Operation mode is not changed properly.
- 5.2.9 Operation panel (FR-DU04) display is not provided.
- 5.2.10 POWER lamp is not lit.
- 5.2.11Parameter write cannot be performed
- 5.3 Precautions for Maintenance and Inspection
- CHAPTER 6 SPECIFICATIONS
- CHAPTER 7 OPTIONS
- APPENDICES
- REVISIONS
A - 4
CAUTION
z
The load used should be a three-phase induction motor only. Connection of any other electrical
equipment to the inverter output may damage the equipment.
z
The electronic over current protection does not guarantee protection of the motor from overheating.
z
Do not use a magnetic contactor on the inverter input for frequent starting/stopping of the inverter.
z
Use a noise filter to reduce the effect of electromagnetic interference. Otherwise nearby electronic
equipment may be affected.
z
Take measures to suppress harmonics. Otherwise power harmonics from the inverter may
heat/damage the power capacitor and generator.
z
When a 575V class motor is inverter-driven, it should be insulation-enhanced or surge voltages
suppressed. Surge voltages attributable to the wiring constants may occur at the motor terminals,
deteriorating the insulation of the motor.
z
When parameter clear or all clear is performed, each parameter returns to the factory setting. Re-set
the required parameters before starting operation.
z
The inverter can be easily set for high-speed operation. Before changing its setting, examine the
performance of the motor and machine.
z
In addition to the inverter's holding function, install a holding device to ensure safety.
z
Before running an inverter which had been stored for a long period, always perform inspection and
test operation.
(5) Emergency stop
CAUTION
z
Provide a safety backup such as an emergency brake which will prevent the machine and equipment
from hazardous conditions if the inverter fails.
(6) Maintenance, inspection and parts replacement
CAUTION
z
Do not carry out a megger (insulation resistance) test on the control circuit of the inverter.
(7) Disposing of the inverter
CAUTION
z
Treat as industrial waste.
(8) General instructions
Many of the diagrams and drawings in this instruction manual show the inverter without a cover, or partially
open. Never run the inverter like this. Always replace the cover and follow this instruction manual when
operating the inverter.