Omron VARISPEED V7 User Manual page 109

• Controlling the Stop Position Regardless of Output Frequency
Control is performed so that S, the travel distance from maximum
output frequency until decelerating to a stop, and S1, the travel dis-
tance from any frequency (less than maximum output frequency)
until decelerating to a stop, are the same. (Control is performed to
stop at the same position when the Run Command is input from a
sequence input terminal regardless of the output frequency.)
Max Output Frequency
Max Output Frequency
Output Frequency
FORWARD RUN
Command
NOTE
Con-
stant
No.
n143
n144
108
SPEED
S
Tdec
FORWARD RUN
Command
RUN
STOP
Fig.1
SPEED
T1
S-S1
S1
Tdec
STOP
RUN
Fig.3
Simple positioning control is not performed if the value of the
Maximum Output Frequency (n011) multiplied by the Decel-
eration Time (n020, n022, n042, or n044) is more than 8,589.
For example, simple positioning control is not performed if
the Deceleration Time is set to 143 s or higher at 60 Hz.
Name
Sequence Input Re-
dundant Reading
Selection (Stop Po-
sition Control Selec-
tion)
Stop Position Con-
trol Compensation
Gain
SPEED
Max Output Frequency
Output Frequency
t
FORWARD RUN
Command
RUN
Fig.2
t
Description
0: 8-ms redundant reading
(Stop position control disabled.)
1: 2-ms redundant reading with only
stop position deviation reduction
2: 2-ms redundant reading with sim-
ple positioning control
Setting unit: 0.01
Setting range: 0.50 to 2.55
S1
t
Tdec
STOP
Fac-
tory
Set-
ting
0
1.00