5-22
The fault display can be cleared by pressing the Menu Key. The motor parameters will revert to their
default settings if a fault occurs. Set these parameters again when auto-tuning.
Fault display
Probable cause and remedy
Data Invalid
(Motor setting data fault)
There was a fault in the data set during auto-tuning.
•
There was a fault in the relationship between the rated frequency,
rated speed, and number of poles.
→
Change the settings to conform to the following formula:
Rated speed < 120
×
Motor frequency/Number of poles
ALARM: Over Load
(Excessive load during auto-tuning)
The effective load factor exceeded 20% during auto-tuning.
•
A load is connected to the motor axis.
→
Remove the load.
•
There was a setting fault during auto-tuning.
→
Check the rated current setting. Change if necessary.
•
There is a motor bearing problem.
→
Turn the Inverter off and rotate the motor by hand.
Replace the motor if it doesn’t turn smoothly.
Motor speed
(Motor speed fault)
The torque reference value exceeded 100% during auto-tuning.
•
There is a broken/disconnected motor power wire.
→
Check and replace wiring components if necessary.
•
A load is connected to the motor axis.
→
Remove the load.
Accelerate
(Motor acceleration fault)
The motor doesn’t accelerate within the prescribed time.
•
The torque limit function is operating.
→
Initialize the torque limit parameters (L7-01 to L7-04).
•
The acceleration time is too short.
→
Increase acceleration time 1 (C1-01).
•
A load is connected to the motor axis.
→
Remove the load.
Rated Slip
(Rated slip fault)
The rated slip setting can’t be tuned within the prescribed time.
•
A load is connected to the motor axis.
→
Remove the load.
Saturation-1
(Core-saturation coefficient 1 fault)
The core-saturation coefficients can’t be tuned within the prescribed
time.
•
The rated current setting isn’t correct.
Saturation-2
(Core-saturation coefficient 2 fault)
g
→
Check and change the setting if necessary.
•
There is a broken/disconnected motor power wire.
→
Check and replace wiring components if necessary.
Resistance
(Motor wire resistance fault)
The motor terminal resistance or no-load current setting can’t be
tuned within the prescribed time.
•
The rated current setting isn’t correct.
No-load Current
(Motor no-load current fault)
g
→
Check and change the setting if necessary.
•
There is a broken/disconnected motor power wire.
→
Check and replace wiring components if necessary.
Minor Fault
(Minor fault)
•
A minor fault has occurred in the Inverter (warning or alarm detected).
→
Refer to
Chapter 8 Maintenance Operations for appropriate ac-
tions.
V/f Over Setting
(V/f setting too high)
•
The torque reference exceeded 100% and the non-load current ex-
ceeded 70% of the rated motor current during auto-tuning.
→
The settings are incorrect for the rated voltage or rated frequency.
Correct the settings.
→
The motor is connected to a load. Disconnect the load.
Basic Operation
Chapter 5
Summary of Contents for SYSDRIVE 3G3FV
Page 1: ...USER S MANUAL High function General purpose Inverter SYSDRIVE 3G3FV Cat No I516 E1 4 ...
Page 16: ...Chapter 1 Introduction 1 1 Function 1 2 Nomenclature 1 3 New Functions 1 ...
Page 33: ...Chapter 2 Installation 2 1 Mounting 2 2 Wiring 2 ...
Page 112: ...Chapter 4 Trial Operation 4 1 Procedure 4 2 Operation Example 4 ...
Page 289: ...Chapter 7 Parameter Lists 7 1 Initialize Mode Parameters 7 2 Program Mode Parameter List 7 ...
Page 366: ...Chapter 9 Specifications 9 1 Inverter Specifications 9 2 Option Specifications 9 ...
Page 395: ...Chapter 10 Appendix 10 1 Notes on Using the Inverter for a Motor 10 ...