YASKAWA
TOEPC71061782C GA800 Drive Installation & Primary Operation
95
Code
Name
Causes
Possible Solutions
UL5
Mechanical Weakening Detection 2
The drive detected undertorque as specified by the
conditions for mechanical weakening detection set in
L6-08 [Mechanical Fatigue Detect Select]
.
Examine the machine for deterioration.
Uv
Undervoltage
The drive input power voltage is changing too much.
•
Examine the input power for problems.
•
Make the drive input power stable.
•
If the input power supply is good, examine the magnetic
contactor on the main circuit side for problems.
◆
Parameter Setting Errors
Parameter setting errors occur when multiple parameter settings do not agree, or when parameter setting values are
not correct. Refer to the table in this section, examine the parameter setting that caused the error, and remove the
cause of the error. You must first correct the parameter setting errors before you can operate the drive. The drive will
not send notification signals for the faults and alarms when these parameter setting errors occur.
Code
Name
Causes
Possible Solutions
oPE01
Drive Capacity Setting Error
The value set in
o2-04 [Drive Model (KVA) Selection]
does not agree with the drive model.
Set
o2-04
to the correct value.
oPE02
Parameter Range Setting Error
Parameter settings are not in the applicable setting
range.
1.
Push
to show
U1-18 [oPE Fault Parameter]
, and find
parameters that are not in the applicable setting range.
2.
Correct the parameter settings.
Note:
•
If more than one error occurs at the same time, other
oPExx
errors have priority over
oPE02
.
oPE03
Multi-Function Input Setting Err
The settings for these parameters do not agree:
•
F3-10 to F3-25 [Terminal D1 to DF Function
Selection]
•
H1-01 to H1-08 [Terminals S1 to S8 Function
Selection]
•
H7-01 to H7-04 [Virtual Multi-Function Inputs 1
to 4]
Correct the parameter settings.
oPE05
Run Cmd/Freq Ref Source Sel Err
The setting to assign the Run command or frequency
reference to an option card or the pulse train input is
incorrect.
Correct the parameter settings.
oPE06
Control Method Selection Error
A1-02 = 1, 3, or 7 [Control Method Selection = CL-
V/f, CLV, CLV/PM]
is set, but there is no encoder
option connected to the drive.
•
Connect an encoder option to the drive.
•
Set
A1-02
correctly.
oPE07
Analog Input Selection Error
The settings for
H3-02, H3-06, and H3-10 [MFAI
Function Select]
and
H7-30 [Virtual Analog Input
Selection]
overlap.
Set
H3-02, H3-06, H3-10, and H7-30
correctly to prevent overlap.
Note:
It is possible to set these functions to multiple analog input
terminals at the same time:
•
Setting value
0 [Frequency Reference]
•
Setting values
F and 1F [Not Used]
oPE08
Parameter Selection Error
You set a function that is not compatible with the
control method set in
A1-02 [Control Method
Selection]
.
1.
Push
to show
U1-18 [oPE Fault Parameter]
, and find
parameters that are not in the applicable setting range.
2.
Correct the parameter settings.
Note:
If more than one error occurs at the same time, other
oPExx
errors have priority over
oPE02
.
When
A1-02 = 2 [Control Method Selection = OLV]
,
you used these parameter settings:
•
n2-02 > n2-03 [Automatic Freq Regulator Time 1
> Automatic Freq Regulator Time 2]
•
C4-02 > C4-06 [Torque Compensation Delay
Time > Motor 2 Torque Comp Delay Time]
•
Set
n2-02 < n2-03
.
•
Set
C4-02 < C4-06
.
When
A1-02 = 0 [Control Method Selection = 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 [PM Open Loop Vector]
, 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.
