YASKAWA GA50U Series

13 Troubleshooting
124 YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation
Code Name Causes Possible Solutions
When A1-02 = 0 [V/f], you used
these parameter settings:
• H6-01 = 3 [Terminal RP Pulse
Train Function = Speed
Feedback (V/F Control)]
• H1-xx = 16 [MFDI Function
Select = Motor 2 Selection]
Correct the parameter settings.
Note:
You cannot use Speed Feedback (V/F
Control) with the Motor Switch
function.
When A1-02 = 5 [OLV/PM], you
set E5-02 to E5-07 [PM Motor
Parameters] = 0.
• Set E5-01 [PM Motor Code Selection]
correctly as specified by the motor.
• For specialized motors, refer to the motor
test report and set E5-xx correctly.
When A1-02 = 5, 6 [OLV/PM,
AOLV/PM], you used these
parameter settings:
• E5-09 = 0.0 [PM Back-EMF
Vpeak (mV/(rad/s)) = 0.0 mV/
(rad/s)]
• E5-24 = 0.0 [PM Back-EMF L-
L Vrms (mV/rpm) = 0.0 mV/
min
-1
]
Set E5-09 or E5-24 to the correct value.
When A1-02 = 5, 6, you set E5-09
≠ 0 and E5-24 ≠ 0.
Set E5-09 = 0 or E5-24 = 0.
When A1-02 = 6, you set these
parameters:
• n8-57 = 0 [HFI Overlap
Selection = Disabled]
• You set E1-09 [Minimum
Output Frequency] < the 5%
value of E1-06.
Correct the parameter settings.
When A1-02 = 6, you set these
parameters:
• n8-35 = 0 [Initial Pole
Detection Method = Pull-in]
• n8-57 = 1 [Enabled]
Correct the parameter settings.
When A1-02 = 8 [EZOLV], you
used these parameter settings:
• E9-01 = 1, 2 [Motor Type
Selection = Permanent Magnet
(PM), Synchronous Reluctance
(SynRM)]
• b3-24 = 2 [Speed Search
Method Selection = Current
Detection 2]
When E9-01 = 1 or 2, set b3-24 = 1 [Speed
Estimation].
oPE09
PID Control Selection
Fault
These parameters are set at the
same time:
• b5-15 ≠ 0.0 [PID Sleep
Function Start Level ≠ 0.0 Hz]
• b1-03 = 2, 3 [Stopping Method
Selection = DC Injection
Braking to Stop, Coast to Stop
with Timer]
• Set b5-15 ≠ 0.0.
• Set b1-03 = 0, 1 [Ramp to Stop, Coast to
Stop].