Adjusting the drive unit
The adjustments given below are necessary.
System in which the forward pulse is applied
to
one pulse input ter-
minal, and the backward pulse to another pulse input terminal.
System in which both the forward pulse and backward pulse are applied
to one pulse input terminal, and forward/backward switching signals
are applied to another pulse input terminal.
As
shown below, the step angle can be changed, by making the step
mode full step or half step.
STOP
-
........
................
:.:..
.........
.........................
.....................
::j:i
;,
;g+tia:sq;
;;
0.36'
0.36'
1,000
0.18'
2,000
1::;
..............
1
0.72'
I
.......
:
..
:....
.:
. ......... ...........
0.72'
500
0.36-
1,000
When the holding torque function is required when stopping the motor,
some units permit adjustment of the hold current by using the
STOP
potentiometer.
When a large holding torque is not required, keep the current low
to
help prevent the motor from overheating.
-
Where there is surplus capacity in the motor torque, some units permit
decreasing the operating current by using the
RUN
potentiometer to
help keep the motor from overheating
or
vibrating.
However, reducing the current
too
much may increase the mechanical
response delay.
Some units are provided with a selector switch
to
automatically turn
current
OFF
when the motor overheats.
I
1
I
I
YES
-
ShutsthecurrenlOFF automatically when the motor overheats
u
NO
-
Current
isrot
shut OFF
-7-
the
See the manufacturer's
Instruction Manual for
details.
-
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