YASKAWA CIPR-GA50C series Technical Manual page 245

Code Name
Note:
• The drive detects this error if it does not correctly receive control data for the CE detection time set to H5-09 [CE Detection Time].
• Do a Fault Reset to clear the fault.
• If the drive detects this error, the drive will operate the motor as specified by the stopping method set in H5-04 [Communication Error Stop Method].
Code Name
CF Control Fault
Note:
• The drive detects this error if the torque reference is more than the torque limit for 3 seconds or longer while the drive ramps to stop.
• Do a Fault Reset to clear the fault.
Code Name
CoF Current Offset Fault
Note:
• The drive detects this error if the current offset value is more than the permitted setting range while the drive automatically adjusts the current offset.
• Do a Fault Reset to clear the fault.
Code Name
CP1 Comparator 1 Limit Error
Note:
• The drive detects this error when H2-01 to H2-03 = 66 [MFDO Function Selection = Comparator1].
• Do a Fault Reset to clear the fault.
• Set the stopping method for this fault in H2-33 [Comparator1 Protection Selection].
Code Name
CP2 Comparator 2 Limit Error
Note:
• The drive detects this error when H2-01 to H2-03 = 67 [MFDO Function Selection = Comparator2].
• Do a Fault Reset to clear the fault.
• Set the stopping method for this fault in H2-35 [Comparator2 Protection Selection].
YASKAWA SIEPC71061753A GA500 Technical Manual
Causes
Electrical interference caused a communication data
error.
Causes
Motor parameters are set incorrectly
The torque limit setting is too low.
The load inertia is too large.
The drive is trying to ramp to stop a machine that
cannot do ramp to stop or on a machine for which
deceleration is not necessary.
The motor and drive are connected incorrectly.
Line-to-line Resistance Tuning is not done.
The drive received a Run command while the motor
was coasting.
Causes
The drive starts operation while the induced voltage
stays in the motor (during coasting to a stop or after
fast deceleration).
A drive hardware problem occurred.
Causes
The monitor value set in H2-20 [Comparator 1
Monitor Selection] was in the range of H2-21
[Comparator 1 Lower Limit] and H2-22
[Comparator 1 Upper Limit].
Causes
The monitor value set in H2-26 [Comparator 2
Monitor Selection] was outside the range of H2-27
[Comparator 2 Lower Limit] and H2-28
[Comparator 2 Upper Limit].
Possible Solutions
• Examine the control circuit lines, main circuit lines, and
ground wiring, and decrease the effects of electrical
interference.
• Make sure that a magnetic contactor is not the source of the
electrical interference, then use a Surge Protective Device if
necessary.
• Use only the recommended cables or other shielded line.
Ground the shield on the controller side or the drive input
power side.
• Separate the communication wiring from drive power lines,
and install a noise filter to the input side of the power supply
for communication.
• Decrease the effects of electrical interference from the
controller.
Possible Solutions
Correctly set the motor parameters and do Auto-Tuning again.
Adjust L7-01 to L7-04 [Torque Limit].
• Adjust C1-02, C1-04, C1-06, and C1-08 [Deceleration Times].
• Set the frequency reference to the minimum output frequency,
and stop the Run command when the drive stops deceleration.
Correctly set b1-03 [Stopping Method Selection].
Correct wiring errors.
Do Stationary Auto-Tuning for Line-to-Line Resistance.
• Examine the sequence and input the Run command after the
motor fully stops.
• Set b3-01 = 1 [Speed Search at Start Selection = Enabled].
Possible Solutions
• Make a sequence that does not restart operation when induced
voltage stays in the motor.
• Set b3-01 = 1 [Speed Search at Start Selection = Enabled].
• Use Speed Search from Fmax or Fref [H1-xx = 61, 62] to do a
speed search through one of the external terminals.
Note:
When controlling the PM motor, External Speed Search
commands 1 and 2 operate the same.
Replace the drive.
Possible Solutions
Examine the monitor value and remove the cause of the fault.
Possible Solutions
Examine the monitor value and remove the cause of the fault.
7.4 Faults
7
245