7.4 Faults
256 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
Code Name Causes Possible Solutions
CP2 Comparator 2 Limit Fault
The monitor value set in H2-26 [Compare2 Mon.
Selection] was outside the range of H2-27
[Compare2 Low Limit] and H2-28 [Compare2 Up
Limit].
Examine the monitor value and remove the cause of the fault.
Note:
• The drive detects this error when the terminal is assigned to H2-01, H2-02 , and H2-03 = 3D [2NO-2CM Func Selection, 3NO-3CM Func Selection, and 4NO-4CM Funct
Selection = Comparator2].
• Do a Fault Reset to clear the fault.
• Set the stopping method for this fault in H2-35 [Compare2 Protection Selection].
Code Name Causes Possible Solutions
CPF00 to
CPF03, CPF07
to CPF08,
CPF11 to
CPF14, CPF16
to CPF24, and
CPF26 to
CPF39
Control Circuit Error
A drive hardware problem occurred. • Re-energize the drive.
• If the fault stays, replace the control board or the drive. For
information about replacing the control board, contact the
manufacturer or your nearest sales representative.
Note:
• Do a Fault Reset to clear the fault.
• Fault trace is not available for these faults.
Code Name Causes Possible Solutions
CPF06 EEPROM Memory Data Error
The drive power supply was de-energized while a
communication option card entered a parameter
Write command.
Set A1-03 = 2220, 3330 [Init Parameters = 2-Wire Initialization,
3-Wire Initialization] and initialize the drive.
An EEPROM peripheral circuit error occurred. • Re-energize the drive.
• If the fault stays, replace the control board or the drive. For
information about replacing the control board, contact the
manufacturer or your nearest sales representative.
Note:
• The drive detects this error if there is an error in the data written to the EEPROM of the drive.
• Do a Fault Reset to clear the fault.
• Fault trace is not available for this fault.
Code Name Causes Possible Solutions
CPF25 Terminal Board not Connected
The terminal board is not correctly connected to the
drive.
1. De-energize the drive.
2. Correctly connect the terminal board to the drive.
3. Re-energize the drive.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
dEv Speed Deviation
The load is too heavy. Decrease the load.
Acceleration and deceleration times are set too
short.
Increase the values set in C1-01 [Accel Time 1] to C1-08 [Decel
Time 4].
The dEv detection level settings are incorrect. Adjust F1-10 [Speed Dev Level] and F1-11 [Speed Dev Delay
Time].
The load is locked up. Examine the machine.
The holding brake is stopping the motor. Release the holding brake.
Note:
• The drive detects this error if the difference between the detected speed and the speed reference is more than the setting of F1-10 for longer than F1-11.
• 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 F1-04 [Speed Dev Detection Select].
Code Name Causes Possible Solutions
dv1 Z Pulse Fault
The encoder option card or the encoder on the
motor side is damaged.
The encoder cable is disconnected or wired
incorrectly.
1. Repair wiring errors and connect disconnected wires.
Correctly ground the shielded wire of the encoder cable.
2. Re-energize the drive
3. If the fault stays, replace the control board or the drive. For
information about replacing the control board, contact the
manufacturer or your nearest sales representative.
Note:
• The drive detects this error if it does not detect a Z pulse during one motor rotation.
• Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
dv2 Z Pulse Noise Fault Detection
Noise interference along the encoder cable. Isolate the encoder cable from the drive output line or a different
source of electrical interference.
The encoder cable is disconnected or wired
incorrectly.
Repair wiring errors and connect disconnected wires. Correctly
ground the shielded wire of the encoder cable.
To Next Page
Loading...
Need help?
General
