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
161
<Setting>
(
1
)
Parameter setting
1) Select advanced magnetic flux vector control. (Pr. 80, Pr. 81 ≠"9999")
2) Set "7 or 8" (brake sequence mode) in Pr. 60.
To ensure more complete sequence control, it is recommended to set "7" (brake opening completion signal
input) in Pr. 60. Note that the automatic restart after instantaneous power failure function is not activated
when the brake sequence mode is selected.
3) Refer to the following table and set the parameters:
Parameter
Number
Name Setting Description
278
Brake opening
frequency
0 to 30Hz
Set to the rated slip frequency of the motor + about 1.0Hz.
This parameter may only be set if Pr. 278 ≤ Pr. 282.
279 Brake opening current 0 to 200%
Generally, set this parameter to about 50 to 90%. If the setting is too
low, the load is liable to drop with gravity at start.
Suppose that the rated inverter current is 100%.
280
Brake opening current
detection time
0 to 2 sec Generally, set this parameter to about 0.1 to 0.3 seconds.
281
Brake operation time
at start
0 to 5 sec
Pr. 60 = 7: Set the mechanical delay time until the brake is loosened.
Pr. 60 = 8: Set the mechanical delay time until the brake is loosened +
about 0.1-0.2 seconds.
282
Brake closing
frequency
0 to 30Hz
At this frequency, the brake opening request signal (BOF) is switched
off. Generally, set this parameter to the Pr. 278 setting + 3-4Hz.
This parameter may only be set if Pr. 282 ≥ Pr. 278.
283
Brake operation time
at stop
0 to 5 sec
Pr. 60 = 7: Set the mechanical delay time until the brake is closed + 0.1
seconds.
Pr. 60 = 8: Set the mechanical delay time until the brake is closed +
about 0.2 to 0.3 seconds.
0 Deceleration is not detected.
284
Deceleration
detection function
selection
1
If deceleration is not normal during deceleration operation, the
inverter alarm (E.MB2) is provided to shut off the output and switch off
the brake opening request signal (BOF).
0 to 30Hz
If (detected frequency) - (output frequency) > Pr. 285 in the PLG
feedback control mode, the inverter alarm (E.MB1) is provided to shut off
the output and switch off the brake opening request signal (BOF).
285
Overspeed detection
frequency
9999 Overspeed is not detected.
Note: When using this function, set the acceleration time to 1 second or longer.
(
2
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Explanations of terminals used
The terminals must be allocated using Pr. 180 to Pr. 186 and Pr. 190 to Pr. 195.
Brake Sequence Mode
Signal Terminals Used
Pr. 60 = 7 (with mechanical brake
opening completion signal)
Pr. 60 = 8 (without mechanical
brake opening completion signal)
BOF According to Pr. 190 to Pr. 195 Brake opening request Brake opening request
BRI According to Pr. 180 to Pr. 186 Brake opening completion signal
Note: 1. The brake opening completion signal (BRI) is a parameter valid when Pr. 60 = 7.
2. When the terminal functions are changed using Pr. 180 to 186 and Pr. 190 to Pr. 195, the other
functions may be affected. Confirm the functions of the corresponding terminals before making
settings.
4