Chapter 11 Troubleshooting
11–22
Alarm check timing
f1 f2 f3 f4
Alarm No.
52
Excessive error 1:
The difference of the ideal position and actual position exceeded the parameter
SV023:OD1 (or SV053:OD3) at servo ON.
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Investigation details
Investigation results
Remedies
The voltage is being supplied.
Investigate item 3.
1 Check whether the PN power is
supplied to the driver.
•
Check the axis for which the alarm is
occurring and the axis farthest from
the power supply.
The voltage is not being supplied.
Investigate item 2.
There is no voltage at the PN terminal.
(The lamp is not lit.)
Check the power supply unit.
2 Check whether the power supply unit's
CHARGE lamp is lit, and the PN
terminal voltage.
There is voltage at the PN terminal.
Check the PN wiring between the units.
The value differs from the standard
setting value.
When not using special specifications, set
the value to the standard setting value.
3 Check the servo parameter (OD1)
setting value.
The value is the standard setting value. Investigate item 4.
4 Check items 3 and following for alarm
No. "50".
Supplement
Depending on the ideal machine position in respect to the command position, the actual machine
position could enter the actual shaded section shown below, which is separated more than the
distance set in OD1.
CAUTION
To prevent trouble, when changing the motor and driver combination, avoid
driving a driver with a larger capacity than the specified driver using the motor.
The motor could be demagnetized. Note that this combination can be used for
checking in the emergency stop state. The motor can be driven with a driver
with a capacity smaller than the specifications.
Ideal machine position
Servo OFF
Command position
Servo ON
Time
OD1
OD1
OD2
OD2
Position
