6 Connection
−
29
−
•
PLS (CW pulse) input and DIR (CCW pulse) input
CSD2109-T
,
CSD2112-T
and
CSD2120-T
can select either 1-pulse input mode or
2-pulse input mode as the pulse input mode to match the controller used. For details
on how to set the pulse input mode, see 7.3 “Pulse input mode” on page 34.
The direction of rotation indicates the direction in which the motor’s output shaft
rotates, as viewed from the motor mounting surface. The output shaft of the geared
type rotates in the direction opposite the motor’s rotation when the gear ratio is 18:1
or 36:1.
1-pulse input mode (factory setting)
The controller pulses are connected to the PLS+ input or the PLS
−
input, and the
rotation direction is connected to the DIR+ input or DIR
−
input.
•
When the DIR input is ON, a fall of the PLS input from ON to OFF will rotate the
motor one step in the CW direction.
•
When the DIR input is OFF, a fall of the PLS input from ON to OFF will rotate
the motor one step in the CCW direction.
Use an input pulse signal with a waveform having a sharp rise and fall, as shown in
the figure:
90%
10%
5 µs or
more
50 (25) µs
or more
∗
2 µs or less
2 µs or less
DIR input
CW
CCW
ON
OFF
ON
OFF
PLS input
100 µs
or more
ON: 4.5 to 5 V
OFF: 0 to 1 V
∗
( ) indicates the
CSD2140T
and
CSD2145T
.
Note
The interval for switching the motor direction represents the response time
of the circuit. Set this interval to an appropriate time after which the motor
will respond.
