YASKAWA GA50U Series

13 Troubleshooting
YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation 125
Code Name Causes Possible Solutions
These parameters are set at the
same time:
• b5-01 = 1, 2 [Enabled
(Standard), Enabled (D =
Feedforward)]
• d2-02 ≠ 0.0 [Frequency
Reference Lower Limit ≠ 0.0%]
Correct the parameter settings.
These parameters are set at the
same time:
• b5-01 = 1, 2 [Enabled
(Standard), Enabled (D =
Feedforward)]
• b5-11 = 1 [PID Output Reverse
Selection = Negative Output
Accepted]
Correct the parameter settings.
These parameters are set at the
same time:
• b5-01 = 3, 4 [Trim (Fref+PID
Out, D = Fdbk), Trim (Fref
+PID Out, D = FeedFwd)]
• d2-02 ≠ 0.0 has been set.
Correct the parameter settings.
oPE10 V/f Data Setting Error
The parameters that set the V/f
pattern do not satisfy these
conditions:
• For motor 1: E1-09 ≤ E1-07 <
E1-06 ≤ E1-11 ≤ E1-04
[Minimum Output Frequency ≤
Mid Point A Frequency < Base
Frequency ≤ Mid Point B
Frequency ≤ Maximum Output
Frequency]
• For motor 2: E3-09 ≤ E3-07 <
E3-06 ≤ E3-11 ≤ E3-04
[Minimum Output Frequency ≤
Mid Point A Frequency < Base
Frequency ≤ Mid Point B
Frequency ≤ Maximum Output
Frequency]
Set the parameters correctly to satisfy the
conditions.
oPE11
Carrier Frequency
Setting Error
These parameters are set at the
same time:
• C6-05 > 6 [Carrier Freq
Proportional Gain > 6]
• C6-04 > C6-03 [Carrier
Frequency Lower Limit >
Carrier Frequency Upper
Limit]
Note:
When C6-05 < 7, C6-04
becomes disabled. The drive
sets the carrier frequency to
the value set to C6-03.
C6-02 to C6-05 settings are not in
the applicable setting range.
Set C6-02 to C6-05 correctly.