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
INSTALLATION AND WIRING
14
8) Electromagnetic wave interference
The input/output (main circuit) of the inverter includes harmonic components, which may interfere with the
communication devices (such as AM radios) used near the inverter. In this case, install FR-BSF01 or FR-BLF
line noise filter to minimize interference.
9) Do not install a power capacitor, surge suppressor in 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 installed, immediately remove them. (If capacitor type filter is connected, switching power off during
motor operation may result in E.UVT. In this case, connect the capacitor type filter in the primary side of the
electromagnetic contactor.)
10)When rewiring after operation, make sure that the POWER lamp has gone off, and when more than 10 minutes
have elapsed after power-off, check with a meter that the voltage is zero. After that, start rewiring work. For
some time after power-off, there is a dangerous voltage in the capacitor.
CAUTION
Do not use residual current protective device as the only protection against indirect
contact.
Protective earth connection essential.
Do not connect more than 2 wires on the protective earth terminal.
Notes on Grounding
• Leakage currents flow in the inverter. To prevent an electric shock, the inverter and motor must be
grounded.
• Use the dedicated ground terminal to ground the inverter. (Do not use the screw in the case, chassis,
etc.)
(Unit: mm
2
)
Motor Capacity
Ground Cable
Gauge
3.7kW (5HP) or less 3.5
7.5kW (10HP) 5.5
15kW (20HP) 14
22 kW (30HP), 37kW (50HP) 22
55kW (75HP) 38
• The ground cable should be as thick as possible.
Its gauge should be equal to or larger than those
indicated in the following table. The grounding
point should be as near as possible to the inverter
to minimize the ground cable length.
• Ground the motor on the inverter side using one
wire of the 4-core cable.
2