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
24
2.2.5 Connection of brake resistor and DC reactor
Incorrect connection will cause inverter damage or accident.
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1
)
Connection of the external brake resistor (010 or less)
The built-in brake resistor is connected across terminals P and PR. Fit the external brake resistor instead
when the built-in brake resistor does not have enough thermal capability for high-duty operation. Remove the
jumper from across terminals PR-PX and connect the external brake resistor across terminals P-PR.
(For the positions of terminals P and PR, refer to the terminal block arrangement (page15).)
The external brake resistor should be as listed in the following table. Selected the rated power of the brake
resistor according to the brake duty.(The rated power indicated below assumes that the brake resistor duty is
10%)
Inverter size Brake resistance Reference rated power at brake duty of 10%
0.75K 1000 ohm minimum 180W minimum
2.2K 350 ohm minimum 500W minimum
3.7K 200 ohm minimum 800W minimum
7.5K 110 ohm minimum 1600W minimum
Note: 1. The brake resistor connected should only be the dedicated brake resistor.
2. The jumper across terminals PR-PX must be disconnected before connecting the dedicated
brake resistor. A failure to do so may damage the inverter.
3. The 010 model does not have the built-in brake resistor and the jumper across terminals PR-PX.
•
••
• Model ..............M4500-001 to 010
1) Remove the screws in terminals PR and PX and remove the jumper.
2) Connect the brake resistor across terminals P-PR.
(The jumper should remain disconnected.)
Removal of jumper FR-A560-0.75 to 7.5K-NA
Jum
p
er
Terminal PR
Terminal P
X
Terminal PR
Terminal P
2