8
Typical applications
4
4 Typical applications
Typical applications
4.1 Speed control
NOTE: The
A
and
B
diagrams below have the same functionality, except that diagram
B
has
an external potentiometer for adjusting the output voltage to a precise zero. The zero drift
over the entire temperature range is less than ±100 mV and is usually less than the motor
starting voltage.
It is also possible to trim to zero speed without using external components. To do this,
remove the cover from the unit and adjust the potentiometer on the top edge of the PC to
zero the output voltage with a zero speed reference.
3 A FUSE
ARM
5
6
7
1
2
3
4
9
8
10K
200XL
V
FWD
REV
STOP
3 A FUSE
ARM
5
6
7
1
2
3
4
9
8
SPEED
200XL
V
FWD
REV
STOP
ZERO
10K
10K
A
B
Figure 7 BASIC CONNECTION - Forward/stop/reverse by centre zero
Figure 8 Forward/stop/reverse by switch
3 A FUSE
ARM
5
6
7
1
2
3
4
9
8
200XL
V
OPEN TO STOP
3 A FUSE
ARM
5
6
7
1
2
3
4
9
8
SPEED
200XL
V
0 TO ±V
SIGNAL
COMMON OF
EXTERNAL SOURCE
ZERO
10K
10K
COMMON OF
EXTERNAL SOURCE
10K
0 TO ±V SIGNAL
FROM EXTERNAL
SOURCE
A
B
Figure 9 0 to ±V (V>10 V) signal from external source
In Figure 7 A, adjust the 10K potentiometer for ±5 V full-scale.
In Figure 7 B, adjust the SPEED potentiometer for ±5 V full-scale.
In Figure 7 B, the external source common is not at the same potential as the supply 0 V.
STOP
FWD
REV
10K
3 A FUSE
ARM
5
6
7
1
2
3
4
9
8
STOP
200XL
V
FWD
REV
10K
3 A FUSE
ARM
5
6
7
1
2
3
4
9
8
200XL
V
A
B
ZERO
10K
RUN
RUN
Содержание 200XLV
Страница 6: ......
