YASKAWA A1000 Technical Manual page 133

The load is too heavy
The acceleration or deceleration times are too
short
The drive is attempting to operate a specialized
motor or a motor larger than the maximum size
allowed
Magnetic contactor (MC) on the output side of
the drive has turned on or off
V/f setting is not operating as expected
Excessive torque compensation
Drive fails to operate properly due to noise
interference
Overexcitation gain is set too high
Run command applied while motor was
coasting
The wrong motor code has been entered for
OLV/PM (Yaskawa motors only) or the motor
data are wrong
The motor control method and motor do not
match
The rated output current of the drive is too
small
Digital Operator Display
to oFA03 to oFA06
, oFA10, oFA11
to oFA12 to oFA17
oFA30 to oFA43
to
oFb03 to oFb11
to
oFb12 to oFb17
to
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
• Measure the current flowing into the motor.
• Replace the drive with a larger capacity drive if the current value exceeds the rated current.
• Determine if there is sudden fluctuation in the current level.
• Reduce the load to avoid sudden changes in the current level or switch to a larger drive.
Calculate the torque needed during acceleration relative to the load inertia and the specified acceleration
time. If the right amount of torque cannot be set, make the following changes:
• Increase the acceleration time (C1-01, -03, -05, -07)
• Increase the S-curve characteristics (C2-01 through C2-04)
• Increase the capacity of the drive.
• Check the motor capacity.
• Ensure that the rated capacity of the drive is greater than or equal to the capacity rating found on the
motor nameplate.
Set up the operation sequence so that the MC does not trip while the drive is outputting current.
• Check the ratios between the voltage and frequency.
• Set parameters E1-04 through E1-10 appropriately (E3-04 through E3-10 for motor 2).
• Lower the voltage if it is too high relative to the frequency.
• Check the amount of torque compensation.
• Reduce the torque compensation gain (C4-01) until there is no speed loss and less current.
• Review the possible solutions provided for handling noise interference.
• Review the section on handling noise interference and check the control circuit lines, main circuit lines,
and ground wiring.
• Check if the fault occurs simultaneously with overexcitation function operation.
• Consider motor flux saturation and reduce the value of n3-13 (Overexcitation Deceleration Gain).
• Enable Speed Search at start (b3-01 = 1).
• Program the Speed Search command input through one of the multi-function contact input terminals
(H1-oo = 61 or 62).
• Enter the correct motor code to E5-01.
• Set E5-01 to FFFF if using a non-Yaskawa PM motor. Set the correct motor data to the E5-oo
parameters or perform Auto-Tuning.
• Check the control mode.
• For IM motors, set A1-02 to 0, 1, 2, or 3.
• For PM motors, set A1-02 to 5, 6, or 7.
Use a larger drive.
Option Card Connection Error at Option Port CN5-A
oFA00
Option compatibility error
Option Card Fault at Option Port CN5-A
oFA01
Option not properly connected
Option card error occurred at option port CN5-A
Option Card Fault at Option Port CN5-B
oFb00
Option compatibility error
Option Card Fault at Option Port CN5-B
oFb01
Option not properly connected
Option Card Fault at Option Port CN5-B
oFb02
Same type of option card already connected
Option card error occurred at Option Port CN5-B
Option Card Connection Error at Option Port CN5-C
oFC00
Option compatibility error
5.2 Fault Detection
Fault Name
5
133