8 - 17
8. TROUBLESHOOTING
Alarm No.: A.35
Name: Command frequency error
Description
Input command frequency is too high.
Detailed
display
Detailed
Name
Cause
Checking method
Result
Action
35.1
Command
frequency
error
1) Command frequency is 1.5
times or more of the
maximum command pulse
frequency.
Check the speed
command.
Check the set value
of parameter
No.PA13 (command
input pulse form).
"0 ":
The maximum
command pulse
frequency is
1Mpps or less.
"1 ":
The maximum
command pulse
frequency is
500kpps or less.
"2 ":
The maximum
command pulse
frequency is
200kpps or less.
The set value of the
speed command is
high.
Check operation pattern.
Check the set value of
parameter No.PA13.
The set value of the
speed command is
within the range.
Check 2).
2) Driver fault
Check if the alarm
occurs after replacing
the servo motor.
Alarm does not
occur.
Replace the driver.
Alarm occurs.
Check 3).
3) Fault in the surrounding
environment
Check the noise, the
ambient temperature,
etc.
An error is found.
Take the appropriate
measures according to the
cause.
Alarm No.: A.37
Name: Parameter error
Description
Parameter setting is incorrect.
Detailed
display
Detailed
Name
Cause
Checking method
Result
Action
37.1
Parameter
setting range
error
1) Parameter is set outside
the setting range.
Check the set value
according to the
parameter error No.
Outside the setting
range.
Correct the value within
the setting range.
Within the setting
range.
Check 2).
2) EEP-ROM fault
Write the parameter set
value within the normal
range, and check if the
value is written
correctly.
Abnormal value is
written.
Replace the driver.
Normal value is
written.
Check 3).
3) Driver fault causes the
change in the parameter
setting.
Check if the alarm
occurs after replacing
the driver.
Alarm does not
occur.
Replace the driver.
37.2
Parameter
combination
error
1) Unavailable parameter
combination is set.
Check the set value
according to the
parameter error No.
The set value is
incorrect.
Correct the set value.