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YASKAWA
TOEPC71061723A YASKAWA AC Drive CR700 Quick Start Guide
Code
Name
Causes
Possible Solutions
Communications circuitry is damaged.
•
Perform a self-diagnostics check.
•
If the problem continues, replace the control board or the
entire drive. For information about replacing the control board,
contact Yaskawa or your nearest sales representative.
Termination resistor setting for MEMOBUS/
Modbus communications is incorrect.
Enable the termination resistor in the last drive in a MEMOBUS/
Modbus network by setting DIP switch S2 to the ON position.
CE
Modbus Communication Error
The communications cable wiring is incorrect.
Correct wiring errors.
There is a short circuit or disconnection in the
communications cable.
•
Repair disconnected cables and short circuits for proper
wiring.
•
Replace a faulty communications cable with a normal one.
Communication data error occurred due to noise.
•
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 recommended cables or other shielded line. Ground
the shield on the controller side or the drive input power side.
•
Separate all communication wiring from drive power lines,
and install a noise filter to the input side of the power supply
for communication.
•
Minimize the effects of controller noise.
Communication protocol is incompatible.
•
Examine the values set in
H5-xx
.
•
Examine the settings on the controller side and correct the
difference in communication conditions.
The time set in
H5-09 [CE Detection Time]
is too
short for the communications cycle.
•
Change the controller software settings.
•
Increase the value set in
H5-09
.
Something in the controller software or hardware is
causing a communication problem.
Examine the controller and remove the cause of the error.
CP1
Comparator 1 Limit Fault
The monitor value set in
H2-20 [Comparator 1
Monitor Selection]
was within 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 error.
CP2
Comparator 2 Limit Fault
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 error.
CrST
Cannot Reset
The drive received a fault reset command when a
Run command was active.
Turn off the Run command then de-energize and re-energize the
drive.
CyC
MECHATROLINK
CommCycleSettingErr
The communications cycle of the controller was set
outside the allowable range of the
MECHATROLINK interface option card.
Set the communications cycle of the controller so that it falls
within the allowable range of the MECHATROLINK interface
option card.
dEv
Speed Deviation
The load is too heavy
Decrease the load.
The acceleration/deceleration time is too short.
Increase the values set in
C1-01 to C1-08 [Acceleration/
Deceleration Time]
.
The
dEv
detection level settings are incorrect.
Adjust
F1-10 [Speed Deviation Detection Level]
and
F1-11
[Speed Deviation Detect DelayTime]
.
The load is locked up.
Examine the machine.
The holding brake is stopping the motor.
Release the holding brake.
E5
MECHATROLINK Watchdog
Timer Err
A watchdog circuit exception was detected while
receiving data from the controller.
Examine the MECHATROLINK cable connection. If this error
occurs frequently, check the wiring and minimize the effects of
noise in accordance with the following manuals:
•
MECHATROLINK-II Installation Guide (MECHATROLINK
Members Association, manual number MMATDEP011)
•
MECHATROLINK-III Installation Manual
(MECHATROLINK Members Association, publication
number MMATDEP018)
EF
FWD/REV Run Command Input
Error
A forward command and a reverse command were
input simultaneously for longer than 0.5 s.
Examine the forward and reverse command sequence and correct
the problem.
EF0
Option Card External Fault
The communication option card received an
external fault from the controller.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input from the controller.
Programming error occurred on the controller side.
Examine the operation of the controller program.
EF1
External Fault (Terminal S1)
MFDI terminal S1 caused an external fault through
an external device.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
The wiring is incorrect.
Correctly connect the signal line to MFDI terminal S1.
External fault [H1-01 = 2C to 2F]
is set to MFDI
terminal S1, but the terminal is not in use.
Correctly set the MFDI.