7 Operation
−44−
7.4 Setting the acceleration time and deceleration
time
Set the acceleration time and deceleration time using the acceleration/deceleration
time potentiometer (page 11). The acceleration time and deceleration time are
always identical.
Adjust the potentiometer using an insulated screwdriver. Turning the potentiometer
clockwise increases the time. You can set a desired time in a range of 0.5 to
10 seconds. The minimum time is set at time of shipment.
“Acceleration time” indicates the time required by the motor to reach the rated
speed from a stopped condition.
“Deceleration time” indicates the time required by the motor to stop from the rated
speed.
With the BLH015, the acceleration/deceleration time indicates the time needed by
the motor to reach 3000 r/min from a stopped condition or to stop from 3000 r/min
(under no load). With the BLH230, BLH450 and BLH5100, it indicates the time
needed by the motor to reach 2500 r/min from a stopped condition or to stop from
2500 r/min (under no load). The actual acceleration/deceleration time is affected by
the use condition, load inertia, load torque and other conditions implemented by the
user.
Instantaneous
stop
EXT
OFF
ON
START/
STOP input
RUN/
BRAKE input
INT.VR/
EXT. input
Motor operating
pattern
CW
CCW
START
RUN
BRAKE
RUN
EXT
OFF
ON
OFF
ON
STARTSTOP
∗
EXT
INT.VR
INT.VR
EXT EXT
∗
∗
∗∗
∗
∗ The motor starts and stops over the time set by the acceleration/deceleration time
potentiometer.
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