8-12
8-3 Troubleshooting
8
Troubleshooting
26
Overspeed
Occurs during high-
speed rotation.
•
The speed command
input is too large.
•
Set the command
pulse frequency to
500 kpps max.
•
The setting for the
Electronic Gear Ratio
Numerator (Pn48 or
Pn49) is not
appropriate.
•
Set Pn48 and Pn49 so
that the command
pulse frequency is
500 kpps max.
•
The maximum number
of rotations is
exceeded due to
overshooting.
•
Adjust the gain.
•
Reduce the maximum
command speed.
•
The encoder wiring is
incorrect.
•
Correct the wiring
Occurs when torque limit
switching is used.
•
The Overspeed
Detection Level
Setting (Pn73) has
been exceeded.
•
If torque limit
switching is used,
correctly set the
allowable operating
speed for Pn73.
27
Electronic gear setting
error
Occurs when command
signal is input or com-
mand is input.
•
The result of multiply-
ing the command
pulse by the electronic
gear ratio exceeded
80 Mpps.
Refer to
•
Check and review the
command pulse
frequency and the
settings for the
Electronic Gear Ratio
parameters (Pn48 to
Pn4B).
34
Overrun limit error
Occurs during operation.
•
The Overrun Limit
Setting (Pn26) is ex-
ceeded during opera-
tion.
•
Adjust the gain.
•
Increase the setting
for Pn26.
•
Set Pn26 to 0 to
disable the function.
36
Overrun limit error
Occurs when the power
supply is turned ON.
•
There are data errors
in the parameters that
were read.
•
Reset all parameters.
•
The Servo Drive is
faulty.
•
Replace the Servo
Drive.
37
Parameter corruption
Occurs when the power
supply is turned ON.
•
The parameters that
were read are corrupt.
•
Replace the Servo
Drive.
38
Drive prohibit input
error
Occurs when the Servo
Drive is turned ON or
during operation.
•
The Forward Drive
Prohibit Input (POT)
and Reverse Drive
Prohibit Input (NOT)
were both OFF at the
same time.
•
Correct the wiring.
•
Replace the limit
sensor.
•
Check whether the
power supply for
control is input
correctly.
•
Check whether the
setting for Drive Pro-
hibit Input Selection
(Pn04) is correct.
39
Excessive analog
input 1
Occurs during operation.
•
The voltage input to
pin 14 is too high.
•
Lower the input
voltage.
•
Change the value for
Pn71.
Alarm
code
Error
Status when error occurs
Cause
Countermeasure
Summary of Contents for R88D-GT series
Page 20: ...18 Table of Contents ...
Page 234: ...3 133 3 8 Reactor Specifications 3 Specifications ...
Page 448: ...7 37 7 5 Manual Tuning 7 Adjustment Functions ...
Page 474: ...8 25 8 5 Periodic Maintenance 8 Troubleshooting ...
Page 475: ...Chapter 9 Appendix 9 1 Connection Examples 9 1 9 2 Parameter Tables 9 11 ...
Page 509: ......