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MOONS’
MSSTAC6 Step Motor Drive User Manual
MOONS’
www.moons.com.cn
For a motor to run at a constant speed anytime it is on, all boxes in the Velocity Control Mode Dialog box
should be unchecked, and a speed entered in the Speed box as well as an accel rate in the Accel box. As soon
as the configuration is downloaded, the motor will run.
In most applications, the motor will be need to be stopped. The simplest way to do this is to check "Use
X1/STEP as the run/stop input." When the X1 input is closed, the motor will accelerate to the speed entered
in the Accel box. When X1 opens, the motor decelerates to a stop using the value in the Decel box.
If need two speeds are needed, check "If X5 closed,change speed to” and enter a second speed. The
MSSTAC6 will accel or decel to the second speed anytime X5 is closed. When X5 opens, the motor speeds
changes to the first speed, again according to the accel and decel rates entered above.
If more speeds are needed, the MSSTAC6 drives include an analog input that can be used to set the
speed when X5 is open or not used. Select a voltage range to match your signal (0 to 5 V, 0 to 10V, +/-5V
or +/-10V), then enter the speed desired at maximum input voltage. If less than the maximum voltage is
applied, the motor speed will be proportional to the applied voltage.
If a potentiometer will be used to adjust the speed, select 0-5V as the range and connect the drive's 5V
power output to the potentiometer's "cw" terminal.
If a joystick will operate the motor in both directions, an offset should be entered that is half the voltage
range. If the drive's 5V output is being used to power an analog joystick, set the offset for 2.5V. Click the
"Advanced Settings" button to change the offset.
Dead band
When it is necessary to stop the motor with an analog signal that doesn't go to 0 volts (potentiometers
can usually go to 0 volts, but electronic circuits usually can't), then a deadband is required. This is the range
