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
148
z
zz
z Output phase failure protection selection (Pr. 251)
Pr. 251 "Output phase failure protection selection"
You can make invalid the output phase failure protection (E.LF) function which stops the inverter output if one
of the three phases (U, V, W) on the inverter's output side (load side) becomes open.
Parameter
Number
Setting
Range
Minimum
Setting
Increments
Factory Setting Description
251 0, 1 1 1
0: Without output phase failure protection
1: With output phase failure protection
z
zz
z Override bias/gain (Pr. 252, Pr. 253)
Pr. 252 "override bias"
Pr. 253 "override gain"
You can extend the 50% to 150% override range (to 0% to 200%), which is covered when Pr. 73 "0 to 5V, 0
to 10V selection" is used to select the override, and set the override value as desired.
Parameter Number Setting Range
Minimum Setting
Increments
Factory Setting
252 0 to 200% 0.1% 50%
253 0 to 200% 0.1% 150%
Override value (%)
Pr. 252
0V 2.5V
(5V)
5V
(10V)
0
50
100
150
200
Factory setting
(50% to 150%)
Voltage across 2-5
Pr. 253
Pr. 73 "0 to 5V, 0 to 10V selection"
Related parameters