YASKAWA CIPR-GA50C series Technical Manual page 251

Code Name
Note:
• This fault occurs if the drive sensors detect a drive output current more than the specified overcurrent detection level.
• Do a Fault Reset to clear the fault.
Code Name
oC2 Overcurrent2
Note:
• This fault occurs if the drive sensors detect a drive output current more than the specified overcurrent detection level.
• Do a Fault Reset to clear the fault.
Code Name
oFA00 Option Not Compatible with Port
Note:
• Do a Fault Reset to clear the fault.
• Fault trace is not available for these faults.
Code Name
oFA01 Option Fault/Connection Error
Note:
Do a Fault Reset to clear the fault.
Code Name
oFA03 to Option Card Error Occurred at
oFA06 Option Port (CN5)
Note:
Do a Fault Reset to clear the fault.
YASKAWA SIEPC71061753A GA500 Technical Manual
Causes
The V/f pattern settings are incorrect.
The torque compensation gain is too large.
Electrical interference caused a problem.
The gain during overexcitation operation is too
large.
The drive received a Run command while the motor
was coasting.
In PM Control Methods, the setting of the motor
code is incorrect.
If the drive detects the fault at start or in the low
speed range (10% or less) and n8-57 = 1 [HFI
Overlap Selection = Enabled] for PM Control
methods, the high frequency injection gain is too
high.
The control method is set incorrectly for the motor.
The motor main circuit cable is too long.
Speed search does not complete at start when you
set A1-02 = 8 [EZ Vector Control] and use an
induction motor.
An overcurrent occurred during overexcitation
deceleration.
Causes
When A1-02 = 5, 6, 8 [Control Method Selection =
OLV/PM, AOLV/PM, or EZOLV], the output current
is more than the value set in L8-27 [Overcurrent
Detection Gain].
Causes
The option connected to connector CN5 is not
compatible.
Causes
You changed the option card connected to
connector CN5 during operation.
Causes
A fault occurred in the option card.
Possible Solutions
• Examine the ratios between the V/f pattern frequency and
voltage. Decrease the voltage if it is too high compared to the
frequency.
• Adjust E1-04 to E1-10 [V/f Pattern Parameters]. For motor 2,
adjust E3-04 to E3-10.
Decrease the value set in C4-01 [Torque Compensation Gain] to
make sure that the motor does not stall.
Examine the control circuit lines, main circuit lines, and ground
wiring, and decrease the effects of electrical interference.
• Find the time when the fault occurs.
• If the fault occurs at the same time as an overexcitation
operation, decrease n3-13 [OverexcitationBraking (OEB)
Gain] and consider the motor flux saturation.
• Examine the sequence and input the Run command after the
motor fully stops.
• Set b3-01 = 1 [Speed Search at Start Selection = Enabled] or
set H1-xx = 61, 62 [Speed Search from Fmax or Fref] to input
speed search commands from the MFDI terminals.
• Enter the correct motor code to E5-01 [PM Motor Code
Selection] as specified by the PM motor.
• For specialized motors, refer to the motor test report and set
E5-xx [PM Motor Settings] correctly.
• Set E5-xx [PM Motor Parameters] correctly or do Rotational
Auto-Tuning.
• Decrease the value of n8-41 [HFI P Gain] in 0.5-unit
increments.
Note:
Set n8-41 > 0.0 for an ordinary IPM motor.
Set A1-02 [Control Method Selection] correctly.
• Replace the drive with a larger capacity model.
• Decrease C6-02 [Carrier Frequency]. Or set C6-02 = B.
When E9-01 = 0 [Motor Type Selection = Induction (IM)], set b3-
24 = 2 [Speed Search Method Selection = Current Detection
Speed Search].
• Decrease n3-13 [OverexcitationBraking (OEB) Gain].
• Decrease n3-21 [HSB Current Suppression Level].
Possible Solutions
Correct the value set in L8-27.
Possible Solutions
Connect a correct option.
Possible Solutions
1. De-energize the drive.
2. Refer to the option card manual and correctly connect the
option card to the connector on the drive.
Possible Solutions
1. De-energize the drive.
2. Make sure that the option card is correctly connected to the
connector.
3. If the problem continues, replace the option card.
7.4 Faults
7
251