Rorze RD-323MS - ５．Current Adjustment; Run Current Adjustment Trimmer; Stop Current Adjustment Trimmer

5. Current Adjustment
RD-323MS 3
５．Current Adjustment
Fig.2. Current Setting Trimmers
5-1 Run Current Adjustment Trimmer
Caution
Please use after adjusting the current within the motor rated current.
Exceeding the rated current causes the failure of motor or fire.
This is used to adjust the stepping motor drive current and in general it makes equal to the rated
current. (Setting at shipment is 0A.)
If a motor is used at a high rpm with a lower-than-rated torque, better efficiency and less
temperature rise can be obtained by using the motor with a current lower than the rated value.
(Note: As the current decreases, the torque will lower.)
The drive current changes relative to the dial. The value of the setting will be ±10 % of the set
value. (Use 1.5A setting when the motor rating is less than 1.5A. Set the amp. dip switch to 1.5A
side, because it makes current adjustment easier.)
Fig.3. Run Current Setting
5-2 Stop Current Adjustment Trimmer
This trimmer can adjust holding current when the motor is stationary. (Current after auto. current
down works.) You can set the stop current to any value between 0 and 80% of the run current by
adjusting Stop Current Adjustment Trimmer. (Setting at shipment is 50 %.)
Fig.4. Stop Current Setting
！
CURREN
T
0 10 0 10
RUN STOP
0
20
40
60
80
100
012345678910
Stop Current Adjustment Trimmer Graduations
Percentage to run current(%
)
Dip switch
3A
1.5A
012345678910
Run Current Adjustment Trimmer Graduations
Drive Current (A)
1
2
0
3
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.