Acceleration And Deceleration Time; Acceleration And Decelerate Time - Sanyo SUPER BL P5 Manual

9. SPECIFICATIONS
9.1.2

Acceleration and Deceleration Time

The acceleration time (t a ) and deceleration time (t b ) under certain load conditions are calculated using the
following expressions.
The expressions, however, are for within the rated speed, ignoring the viscosity torque and friction torque of
the motor.
Acceleration time : t a = (J M + J L ) •
Deceleration time : t b = (J M + J L ) •
t :
a
t :
b
J :
M
J :
L
N , N :
1 2
T :
P
T :
L
N 2
N 1
For actually determining t
making allowance for load.
Note that when power supply voltage is below 200V, the instantaneous torque in high
speed zone drops.
60
Acceleration time (sec)
Deceleration time (sec)
2
Motor inertia (kg･m )
2
Load inertia (kg･m )
1
Motor speed (min － )
Instantaneous maximum stall torque (N･m)
Load torque (N･m)
t a
Fig. 9-1 Motor Revolution Speed Time Chart
and t
a
N –N
2π
2 1
• (sec)
T –T
60
P L
N –N
2π
2 1
• (sec)
T +T
P L
t b
, it is recommended that the above T
b
9－5
→ Time
≦0.8 T be limited,
P P