♦
2-pulse input mode (factory setting)
Connect the CW pulse and CCW pulse signals
from the positioning controller to the CW and
CCW inputs, respectively.
1.
When the CW input is turned from “ ON ” to
“ OFF ”, the motor rotates one step in the
clockwise direction.
2.
When the CCW input is turned from “ ON ” to
“ OFF ”, the motor rotates one step in the
counterclockwise direction.
26
Explanation of I/O signals
■
Input signals
All driver input signals are photocoupler inputs.
The signal state indicates the “ ON : current
supplied ” or “ OFF : current not supplied ” status of
the internal photocoupler rather than the voltage
level of the signal.
♦
1-pulse input mode
It is used for only
CSD2109-P
,
CSD2112-P
and
CSD2120-P.
Connect the pulse signal and rotation-direction
signal from the positioning controller to PLS and
DIR., respectively.
1.
When the PLS input is turned from “ ON ” to
“ OFF ” while the DIR. input is set to “ ON ”, the
motor rotates one step in the clockwise
direction.
2.
When the PLS input is turned from “ ON ” to
“ OFF ” while the DIR. input is set to “ OFF ”, the
motor rotates one step in the counterclockwise
direction.
Use an input signal voltage of 5 VDC minimum
and 24 VDC maximum.
If the input signal voltage is greater than 5 VDC,
connect an external resistor R
1
in order to keep
the input current to 10 mA minimum and 20 mA
maximum.
●
CW (PLS) input and CCW (DIR.) input
The driver (
CSD2109-P
,
CSD2112-P
or
CSD2120-P
)
supports both 1-pulse input mode and 2-pulse
input mode. The user can select an appropriate
mode in accordance with the positioning controller
used.
How to set the pulse input mode See page
31
.
The direction of rotation indicates the direction in
which the motor’s output shaft rotates, as viewed
from the motor-mounting surface. The direction
rotation of the geared type’s output shaft is
determined by the reduction gear ratio.
See page
13
.
R
1
Controller output
Open-collector
output
Driver internal circuits
5
6
220
Ω
10 to 20 mA
+
-
CW(PLS)
CCW(DIR.)
C.OFF
V
0
0V
V
0
R
1
=
_ 220 [
Ω
]
20 mA
CW input
CCW input
CW
Motor
CCW
ON
OFF
ON
OFF
ON
OFF
ON
OFF
CW
Motor
CCW
PLS input
DIR. input
CCW direction
CW direction
●
The minimum interval of rotation-direction
switching changes according to the operating
speed and size of the load.
●
If a pulse signal is not input, be sure to set the
photocoupler to “ OFF ”.
Do not input pulse signals to the CW and CCW
inputs simultaneously.
If one input receives a pulse signal while the
other input has its photocoupler turned to “ ON ”,
the motor cannot operate correctly.
NOTE
The minimum interval of rotation-direction
switching changes according to the operating
speed and size of the load.
NOTE
