6.12 Troubleshooting Without Fault Display
520
YASKAWA
SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
6.12
Troubleshooting Without Fault Display
Note:
Make sure that you use a keypad with FLASH number 1004 or later. Keypads with FLASH numbers 1003 and earlier will not show
characters correctly.
If the bypass or motor operate incorrectly, but the keypad does not show a fault or error code, refer to the items this
section.
•
Motor hunting and oscillation
•
Unsatisfactory motor torque
•
Unsatisfactory speed precision
•
Unsatisfactory motor torque and speed response
•
Motor noise
◆
Typical Problems
Symptom
Reference
The Parameter Settings Will Not Change
The Motor Does Not Rotate After Entering Run Command
The Motor Rotates in the Opposite Direction from the Run Command
The Motor Rotates in Only One Direction
The Motor Is Too Hot
oPE02 Error Occurs When Decreasing the Motor Rated Current Setting
The Motor Stalls during Acceleration or Accel/Decel Time Is Too Long
The Drive Frequency Reference Is Different than the Controller Frequency Reference Command
There Is Too Much Motor Oscillation and the Rotation Is Irregular
There Is Audible Noise from the Drive or Motor Cables When the Drive Is Energized
The Ground Fault Circuit Interrupter (GFCI) Trips During Run
Motor Rotation Causes Unexpected Audible Noise from Connected Machinery
Motor Rotation Causes Oscillation or Hunting
PID Output Fault
The Motor Rotates after the Drive Output Is Shut Off
The Output Frequency Is Lower Than the Frequency Reference
The Motor Is Making an Audible Noise
The Motor Will Not Restart after a Loss of Power
◆
The Parameter Settings Will Not Change
Causes
Possible Solutions
The drive is operating the motor (the drive is in Drive Mode).
Stop the drive and change to Programming Mode.
Parameter
A1-01 = 0 [Access Level Selection = Operation Only]
.
Set
A1-01 = 2 [Access Level Selection = Advanced Level]
or
A1-01 = 3 [Expert Level]
.
Parameter
H1-xx = 1B [MFDI Function Select = Programming Lockout]
.
Activate the terminals to which
H1-xx = 1B
is set, and then change the parameters.
Содержание H6B1A002
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