50
Settings of MEXE02
9.4.1 Softening an impact at starting and stopping
"Impact softening lter" parameter
The impact softening lter is a function to perform a lter processing to the set acceleration time and deceleration time,
and to suppress an impact being applied to a transferred load at starting or stopping. The motor accelerates slowly at
starting and decelerates slowly at stopping.
0
Set rotation speed
No lter
Time [s]
Filter 1
Filter 2
If the "Impact softening lter" is enabled, the actual acceleration time/deceleration time may be longer than the
acceleration time/deceleration time having set.
9.4.2 Changing the motor movement at deceleration stop
"Deceleration mode selection" parameter
The motor stopping movement can be selected. Set according to the type of a power supply used or the motor stopping
movement.
However, note the deceleration stop time varies depending on a load condition.
To stop the motor with the set deceleration time
To stop the motor gently
Not to return the regenerative power to
the power supply
(switched-mode power supply, etc.)
•
To utilize the regenerative power
•
Regenerative capacity is large
(Battery, etc.)
"Deceleration stop 2"
The motor coasts to a stop
due to no braking force.
If the deceleration time is
longer than the coasting
stop time, the motor
stops according to the
deceleration stop time.
"Deceleration stop 1" "Deceleration stop 3"
This is the stopping method that regenerative
power generated at deceleration stop is consumed
in the motor and driver not to return to the power
supply side.
When the deceleration time is short, the output
torque may become smaller than the set torque
limiting value due to regenerative energy, causing
the stopping time to increase.
Torque
FWD
e
Speed
Internal voltage
Positive
This is the stopping method that regenerative
power generated at deceleration stop is returned
to the power supply side.
Also, use this setting when regenerative power is
used in other equipment.
Torque
FWD
e
Speed
Internal voltage
Positive
z
Note when using a switched-mode power supply in "Deceleration stop 3"
If a power supply with a small regenerative capacity is combined, the voltage
may rise as indicated by hatched areas, causing a trip in the power supply or
an alarm of the driver to generate.
When performing regeneration operation continuously, use a power supply
with a large regenerative capacity.