exceeded
the value
set in the
excessive
position
error alarm
level
(Pn520).)
acceleration is too fast.
acceleration/deceleration time
constant (Pn216).
Setting of the excessive
position error alarm level
(Pn520) is low against the
operating condition.
Check the alarm level
(Pn520) to see if it is
set to an appropriate
value.
Set the Pn520 to proper value.
A SERVOPACK fault
occurred.
Turn the power supply OFF and then
ON again. If the alarm still occurs,
the SERVOPACK may be faulty.
Replace the SERVOPACK.
Position
Error
Overflow
Alarm at
Servo ON
This alarm occurs if the
servo ON signal (/S-ON) is
turned ON when the
position error is greater
than the set value of Pn526.
Check the position
error amount (Un008)
while the /S-ON signal
is OFF.
Set position error to be cleared
while the /S-ON signal is OFF. Or,
correct the excessive position error
alarm level at servo ON (Pn526).
Position
Error
Overflow
Alarm by
Speed Limit
at Servo ON
When pulses remain in the
error counter, Pn529 limits
the speed if the /S-ON signal
is turned ON. If Pn529 limits
the speed in such a state,
this alarm occurs when
reference pulses are input
and the number of position
errors exceeds the value set
for the excessive position
error alarm level (Pn520).
Set position error to be cleared
while the /S-ON signal is OFF. Or,
correct the excessive position error
alarm level (Pn520). Or, adjust the
speed limit level at servo ON
(Pn529).
Motor-load
Position
Error
Overflow
Motor rotation direction and
external encoder
installation direction are
opposite.
Check the servomotor
rotation direction and
the external encoder
installation direction.
Install the external encoder in the
opposite direction, or change the
setting of the external encoder
usage method (Pn002.3) to reverse
the direction.
Mounting of the load (e.g.,
stage) and external encoder
joint installation are
incorrect.
Check the external
encoder mechanical
connection.
Check the mechanical joints.
Feedback
Option
Module
Detection
Failure
The connection between the
SERVOPACK and the
Feedback Option Module is
Faulty.
Check the connection
between the
SERVOPACK and the
Feedback Option
Module.
Correctly connect the Feedback
Option Module.
The Feedback Option
Module was disconnected.
Execute resetting configuration
error in option modules (Fn014) and
turn the power supply OFF and then
ON again.
A Feedback Option Module
fault occurred.
Replace the Feedback Option
Module.
A SERVOPACK fault
occurred.
Safety
Function
Signal Input
Timing
Error
The lag between activations
of the input signals /HWBB1
and /HWBB2 for the HWBB
function is ten second or
more.
Measure the time lag
between the /HWBB1
and /HWBB2 signals.
The output signal circuits or devices
for /HWBB1 and /HWBB2 or the
SERVOPACK input signal circuits
may be faulty. Alternatively, the
input signal cables may be
disconnected. Check if any of these
items are faulty or have been
disconnected.
Main Circuit
Cable Open
Phase
(With the
main power
supply ON,
voltage was
low for
more than 1
second in
an R, S, or T
The three-phase power
supply wiring is incorrect.
Check the power
supply wiring.
Confirm that the power supply is
correctly wired.
The three-phase power
supply is unbalanced.
Measure the voltage at
each phase of the
three-phase power
supply.
Balance the power supply by
changing phases.
A single-phase power is
input without setting
Pn00B.2 (power supply
method for three-phase
Check the power
supply and the
parameter setting.
Match the parameter setting to the
power supply.
To Next Page
Loading...
