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(3) Preventing Overheat
To prevent the motor from overheating, the drive time and drive ratio are limited.
Follow the Table 3-7 shown below to set an operating time and a pause time of the motor.
Maximum
Drive pulse rate
continuous
(pps)
drive time
320
to
560
560
to
800
800
to
1040
1040
to
1280
1280
to
1520
1520
to
1760
1760
to
2000
2000
to
2240
2240
to
2480
2480
to
2720
2720
to
2960
2960
to
3200
3200
× : Not Allowed to use
Drive
Ratio
Table 3-7 Maximum Drive Time and Drive Ratio
9.5V≥ V
>8.5V
P
(s)
Drive ratio
450
85%
450
85%
450
85%
450
85%
450
85%
450
85%
455
85%
465
85%
485
90%
515
90%
575
95%
665
95%
1445
95%
Drive
Time
( )
%
=
Drive
Time
+
Pause
Motor drive voltage V
8.5V≥ V
>7.5V
7.5V≥ V
P
Drive ratio
Drive ratio
85%
85%
85%
85%
85%
85%
85%
90%
90%
90%
90%
95%
90%
100%
95%
100%
100%
100%
100%
100%
100%
×
100%
×
100%
×
×
100
(%)
Time
3-15
(V)
P
>6.5V
6.5V≥ V
>5.5V
P
P
Drive ratio
85%
90%
90%
95%
100%
100%
100%
100%
×
×
×
×
×
5.5V≥ V
≥4.75V
P
Drive ratio
90%
90%
95%
100%
100%
100%
×
×
×
×
×
×
×
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