Applied Motion STR4 - Manual (Page 19)

19
STR4/8 Hardware Manual 920-0030J
5/12/2015
current that will be applied to the motor: SW1 and SW2. Please set them according to the
illustration below.
Step 3: Setting Idle Current
Motor heating and power consumption can also be reduced by lowering the motor current
when it is not moving. The STR will automatically lower the motor current when it is idle to
either 50% or 90% of the running current. The 50% idle current setting will lower the holding
torque to 50%, which is enough to prevent the load from moving in most applications. This
reduces motor heating by 75%. In some applications, such as those supporting a vertical load, it
is necessary to provide a high holding torque. In such cases, the idle current can be set to 90%
as shown below.
1 2
100%
1 2
90%
1 2
80%
1 2
70%
4
50%
4
90%