18
6000
steps/sec.
in
1
step/sec.
intervals.
If
this
command
is
never
used,
the
default
speed
will
be
2000
steps/sec.
NOTE:
motor
torque
decreases
as
speed
increases,
and
some
motors
have
limited
torque
above
2000
steps/sec.
If
the
motor
torque
is
below
the
needed
torque
to
move
the
load,
the
motor
will
stall
(lose
synchronism
and
proper
position.)
Memory
usage
=
3 bytes
.
Example:
This
example
sets
the
speed
of
motor
1
to
500
steps/sec
at
70%
power:
S1M500
<cr>
When
the
"
S
"
speed
command
is
used
for
setting
speed,
motor
running
torque
will
be
70%
of
the
maximum
output.
For
most
applications
70%
motor
torque
will
be
adequate.
For
moving
heavy
loads
the
"
SA
"
speed
command
(100%
power)
may
be
needed.
Motor
power
will
always
be
zero
when
the
motor
is
stationary
(motors
are
normally
un-energized
at
a
standstill.
Saves
energy.
1.
2.
3.
4.
Motors
run
smoother
and
quieter
Reduces
mid-speed
motor
resonance.
Reduces
Motor
and
Controller
heating.
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to
6000
steps/sec.
in
1
step/sec.
intervals.
Example:
This
example
sets
the
speed
of
motor
2
to
3000
steps/sec
at
100%
power:
SA2M3000
<cr>
With
acceleration
set
to
2
(default)
increase
speed
until
motor
stalls,
use
75%
of
this
speed
as
the
maximum
speed.
:
Motor
and
Controller
surface
temperatures
become
hot
when
running
motors
continuously.
Only
use
100%
("
"
command)
motor
power
if
maximum
torque
is
required.
For
maximum
efficiency
when
lifting
heavy
loads
vertically,
use
the
"
SA
”
command
to
set
speed
for
traversing
upwards,
and
use
the
"
S
"
speed
command
for
the
speed
down.
is
2.
The
higher
the
number
used,
the
faster
the
motor
will
reach
the
set
speed,
and
the
faster
it
will
slow
down
to
a
stop.
:
motors
may
stall
if
this
value
is
set
to
high.
Memory
usage
=
2 bytes
Example:
This
example
sets
the
acceleration/deceleration
of
motor
1
to
3:
A1M3
<cr>
With
speed
set
to
maximum
as
determined
increase
acceleration
until
the
motor
stalls,
use
1/2
of
stall
acceleration
as
the
above,
maximum
NOTE:
Advantages of the "S" speed command (70% motor power)
How to Determine Maximum Speed:
CAUTION
SA
NOTE
How to Determine Maximum
Acceleration:
See
Application
Note
#106
for
more
information
about
acceleration.
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