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
PARAMETERS
69
z
zz
z Acceleration/deceleration pattern (Pr. 29, Pr. 140 to Pr. 143)
Pr. 29 "acceleration/deceleration pattern"
Pr. 140 "backlash acceleration stopping frequency"
Pr. 141 "backlash acceleration stopping time"
Pr. 142 "backlash deceleration stopping frequency"
Pr. 143 "backlash deceleration stopping time"
Set the acceleration/deceleration pattern.
Also, you can suspend acceleration/deceleration at set frequencies and for the time period set in the
parameters.
Parameter
Number
Factory
Setting
Setting Range Remarks
29 0 0, 1, 2, 3 3: Backlash compensation
140 1.00Hz 0 to 400Hz Valid when Pr. 29 = 3.
141 0.5 s 0 to 360 s Valid when Pr. 29 = 3.
142 1.00Hz 0 to 400Hz Valid when Pr. 29 = 3.
143 0 s 0 to 360 s Valid when Pr. 29 = 3.
Time
[Linear acceleration/deceleration]
Output frequency (Hz)
Set value 0
fb
[S-shaped acceleration/deceleration A]
Time
Output frequency (Hz)
Set value 1
f1
f2
[S-shaped acceleration/deceleration B]
Output frequency (Hz)
Time
Set value 2
∆
f2
Pr.142
∆
t2 Pr.143
∆
t1 Pr.141
∆f1 Pr.140
Output frequency (Hz)
Set value 3
[Backlash compensation function]
Time
<Setting>
Pr. 29
Setting
Function Description
0
Linear
acceleration/
deceleration
Linear acceleration/deceleration is made up/down to the preset frequency (factory setting).
1
S-shaped
acceleration/
deceleration A
(Note 1)
For machine tool spindles
This setting is used when it is necessary to make acceleration/deceleration in a short time up to the
60Hz or higher speed range. In this acceleration/deceleration pattern, fb (base frequency) is always the
inflection point of an S shape, and you can set the acceleration/deceleration time according to the
reduction in motor torque in the 60Hz or higher constant-output operation range.
2
S-shaped
acceleration/
deceleration B
Prevention of cargo collapse on conveyor, etc.
This setting provides S-shaped acceleration/deceleration from f2 (current frequency) to f1 (target
frequency), easing an acceleration/deceleration shock. This pattern has an effect on the prevention of
cargo collapse, etc.
3
Backlash
compensation
(Note 2, 3)
Backlash compensation for reduction gear, etc.
This function stops the speed change temporarily during acceleration/deceleration, reducing a shock
generated when a reduction gear backlash is eliminated suddenly. Use Pr. 140 to Pr. 143 to set the
stopping times and stopping frequencies in accordance with the above diagrams.
Note: 1. For the acceleration/deceleration time, set the time required to reach the "base frequency" in
Pr. 3, not the "acceleration/deceleration reference frequency" in Pr. 20. For details, refer to Pr. 7 and
Pr. 8.
2. Pr. 140 to Pr. 143 is accessible when "3" is set in Pr. 29.
3. The acceleration/deceleration time is increased by the stopping time.
Pr. 3 "base frequency"
Pr. 7 "acceleration time"
Pr. 8 "deceleration time"
Pr. 20 "acceleration/deceleration
reference frequency"
Pr. 44 "second acceleration/
deceleration time"
Pr. 45 "second deceleration time"
Pr. 110 "third acceleration/
deceleration time"
Pr. 111 "third deceleration time"
Related parameters
4