YASKAWA CIPR-GA50C series, Technical Manual

Page: 261 / 766

T
roubleshooting
7
7.5 Minor Faults/Alarms
YASKAWA SIEPC71061753A GA500 Technical Manual 261
Code Name Causes Possible Solutions
The option card is damaged. If the alarm continues and the wiring is correct, replace the option
card.
Note:
• The drive detects this error if the Run command or frequency reference is assigned to the option card.
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
• If the drive detects this error, it will operate the motor as specified by the stopping method set in F6-01 [Communication Error Selection] .
Code Name Causes Possible Solutions
CALL Serial Comm Transmission Error
The communications cable wiring is incorrect. Correct wiring errors.
There is a short-circuit in the communications cable
or the communications cable is not connected. • Repair the short-circuited or disconnected portion of the cable.
• Replace the defective communications cable.
A programming error occurred on the controller
side. Examine communications at start-up and correct programming
errors.
The communications circuitry is damaged. • Do a self-diagnostics check.
• If the problem continues, replace the control board or the
drive. For information about replacing the control board,
contact Yaskawa or your nearest sales representative.
The termination resistor setting for MEMOBUS/
Modbus communications is incorrect. On the last drive in a MEMOBUS/Modbus network, set DIP
switch S2 to the ON position to enable the termination resistor.
Note:
•
The drive detects this error if it does not correctly receive control data from the controller when energizing the drive.
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
Code Name Causes Possible Solutions
CE Modbus Communication Error
The communications cable wiring is incorrect. Correct wiring errors.
There is a short-circuit in the communications cable
or the communications cable is not connected. • Repair short circuits and connect cables.
• Replace the defective communications cable.
Electrical interference caused a communication data
error.
•
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.
The communication protocol is not compatible. • Examine the values set in H5-xx .
• Examine the settings on the controller side and correct the
difference in communication conditions.
The value set in H5-09 [CE Detection Time] is too
small for the communications cycle.
• Change the controller software settings.
• Increase the value set in H5-09 .
The controller software or hardware is causing a
communication problem. Examine the controller and remove the cause of the problem.
Note:
• The drive detects this error if it does not correctly receive control data for the CE detection time set to H5-09 .
•
If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
• If the drive detects this error, it will operate the motor as specified by the stopping method set in H5-04 [Communication Error Stop Method] .
Code Name Causes Possible Solutions
CP1 Comparator 1 Limit Error
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] .
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 to H2-03 = 66 [MFDO Function Select = Comparator1] .
•
If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
•
Parameter H2-33 [Comparator1 Protection Selection] enables and disables CP1 detection.
Code Name Causes Possible Solutions
CP2 Comparator 2 Limit Error 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] .
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 to H2-03 = 67 [MFDO Function Select = Comparator2] .
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
• Parameter H2-35 [Comparator2 Protection Selection] enables and disables CP2 detection.