32
Motor currents
Set the motor currents during operation and in the
current-cutback state.
Motor operating current
Factory setting : Motor’s rated current
If the load is small and there is sufficient torque,
the operating current can be reduced to suppress
vibration and temperature rise of the motor.
Motor standstill current
Factory setting : 40 percent of motor operating
current
If the motor standstill torque has some margin, the
standstill current can be reduced to suppress rise
in motor temperature.
■
Setting method
An ammeter or tester is needed to set the motor
current.
Note that a tester is required only for the
CSD2109-P
,
CSD2112-P
and
CSD2120-P
.
Setting with an ammeter
Connect the driver, motor and DC ammeter.
2-phase stepping motor
Driver
1
2
3
4
5
6
CN2
Green
Black
Blue
Red
Yellow
White
Motor leads color
●
Setting the motor operating current too low may
affect the motor’s starting characteristics and
position-retention performance.
●
Be sure to adjust the current within the rated
current of the motor/driver. Failure to do so may
damage the motor/ driver.
NOTE
When setting the current for the following
products, be sure to use an ammeter.
If a tester is used, the indicated voltage on the
tester may vary from the actual current set.
CSK243AP-SG50, CSK243BP-SG50
CSK243AP-SG100, CSK243BP-SG100
CSK264AP-SG50, CSK264BP-SG50
CSK264AP-SG100, CSK264BP-SG100
NOTE
CSD2109-P, CSD2112-P, CSD2120-P
Driver
2-phase stepping motor
1
2
3
4
5
6
CN2
Green
Black
Blue
Red
Yellow
White
Motor leads color
Connect the driver and motor.
Insert the tester probes (approx. ø2.1 mm) into
the motor-current check terminals ( C.C.+, C.C.-).
Setting with a tester
C.C.
1 2 3
4
OFF
F/H
1P
/2P
24/36V
ACD
C.C.+
KSPA045
C.C.
+
C.C.-
Set the tester to the
voltage-measuring
range.
●
The colors of motor leads shown in the diagrams
are for connection using the motor cable supplied
with the lead wire type, or an optional motor cable
(sold separately). Please refer to the connection
method shown on the bottom of page 22 for
connection using a cable provided by the user.
