39239·03
u
1---
-
----.11.---1
its
MIN
U
DIRECTION ---I
t:::::'5OO
ns MIN
SELECT
---===tJ-----.
-...J
(....--
1
itS
MIN
STEP~-U
1
itS
MIN
-:it-
~
--'..
•.
6
me
MIN
(SA455)
3
me
MIN
(SA465)
FIGUAE4·10.
STEPPER
TIMING
+5V
-
-
+5V
T
ERO
ER1
FIGURE
4·11.
POWER
ON
RESET
39239·22
4.10
DRIVE SELECT
The
SA455/465
is
configured to
oplar~te
alone
In
a single drive system. It can be easily modified to
operate
with
other drives
in
a daisy chained multiplexed drive system. This
Is
done
by selecting the specific drive address
and
jumperlng
the
appropriate DRIVE SELECT line.
See
figure 4-12.
The
"MX"
option
Is
used for
sln~!le
drive systems.
By
shorting
HMX.
1l
the
I/O
lines are always enabled.
The
"MS"
option
allows the
mot~:>r
to
be
enabled from DRIVE SELECT.
+5V
)(
6
~
{>
OS1
OS
SELECT
14.:.-
MX
2
X
39239·23
3
X
12
?
4
)(
10
FIGURE
4·12.
DRIVE
SELECT
4-7
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