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
13
2.2.2 Wiring of the main circuit
(
1
)
Wiring instructions
1) Crimping terminals with insulation sleeves are recommended for use with the power and motor cables.
2) Cut the protective bushes of the wiring cover when running the cables.
3) Power must not be applied to the output terminals (U, V, W) of the inverter. Otherwise the inverter will be
damaged.
4) After wiring, wire off-cuts must not be left in the inverter.
Wire off-cuts can cause an alarm, failure or malfunction. Always keep the inverter clean.
When drilling mounting holes in a control box etc., exercise care to prevent chips and other foreign matter
from entering the inverter.
5) Use cables of the recommended size for wiring to make the voltage drop 2% or less.
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.
6) The overall wiring length should be 500m (1640.40feet) maximum.
Especially for long distance wiring, the fast-response current limit may be misactivated under the influence
of a charging current due to the stray capacitance of the wiring. The fast-response current limit must be
turn off by Pr.156 when the total wiring length is more than the indicated value in the following table for
M4500-010 to 005.
Inverter Model 001 003 005
Non-low acoustic noise mode 100m (328 feet) 300m (984 feet) 300m (984 feet)
Low acoustic noise mode 100m (328 feet) 200m (656 feet) 300m (984 feet)
Even though the fast-response current limit is turned off , in more long distance wiring situations the over
current protection may be misactivated or the devices connected to the output side may misoperate or
become faulty under the influence of a charging current due to the stray capacitance of the wiring.
Therefore, the maximum overall wiring length should be as indicated in the following table. (When two or
more motors are connected to the inverter, the total wiring length should be within the indicated value.)
Inverter Model 001 003 005 or more
Total wiring length 100m (328 feet) 300m (984 feet) 500m (1640 feet)
Overall wiring length (005 or more)
300m (984 feet) + 300m (984 feet) = 600m (1968 feet)
500m
(1640 feet) maximum
300m
(984 feet)
300m
(984 feet)
7) Connect only the recommended external brake resistor between the terminals P and PR. These terminals
must not be shorted.