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
4.2 Parameter Function Details
PARAMETERS
56
4.2 Parameter Function Details
z
zz
z Torque boost (Pr. 0, Pr. 46, Pr. 112)
Pr. 0 "torque boost"
Pr. 46 "second torque boost"
Pr. 112 "third torque boost"
You can compensate for a voltage drop in the low frequency
range to
improve motor torque reduction in the low speed range.
z Motor torque in the low-frequency range can be adjusted to the load to increase the starting motor torque.
z You can select any of the three different starting torque boosts by terminal switching.
Parameter
Number
Factory
Setting
Setting Range Remarks
001 5%
003 3%
005, 010 2%
0
025 or more 1%
0 to 30%
46 9999 0 to 30%, 9999 9999: Function invalid
112 9999 0 to 30%, 9999 9999: Function invalid
Pr.0
Pr.46
Pr.112
0
100%
Base frequenc
y
Output voltage
Setting range
Output frequency (Hz)
<Setting>
x Assuming that the base frequency voltage is 100%, set the 0Hz voltage in %.
x A large setting will cause the motor to overheat. The guideline for maximum value is about 10%.
x Pr. 46 is valid when the RT signal is on. Pr. 112 is valid when the X9 signal is on. Use any of Pr. 180 to
Pr. 186 to assign the terminal used to input the X9 signal.
Note: 1. This parameter setting is ignored when Pr. 80 and Pr. 81 have been set to select the advanced
magnetic flux vector control mode.
2. Increase the setting when the inverter-to-motor distance is long or motor torque in the low-speed
range is insufficient, for example. A too large setting may result in an overcurrent trip.
3. When the RT (X9) signal is on, the other second (third) functions such as second (third)
acceleration/deceleration time are also selected.
4. When terminal assignment is changed using Pr. 180 to Pr. 186 during use of the second or third
functions, the other functions may be affected. Check the functions of the corresponding
terminals before making setting.
Pr. 3 "base frequency"
Pr. 19 "base frequency voltage"
Pr. 71 "applied motor"
Pr. 80 "motor capacity"
Pr. 81 "number of motor poles"
Pr. 180 to Pr. 186
(input terminal function selection)
Related parameters