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MOONS’
MSSTAC6 Step Motor Drive User Manual
MOONS’
www.moons.com.cn
The analog input can be used for:
• Analog Velocity mode
• Analog Positioning mode
Both of these modes use the analog input for commanding the step drive.
This input may also be used to have an analog signal stop a move when using a Feed to Sensor type
move or waiting on an analog signal using the Wait on Input command.
Basic Specifications:
• The analog input can accept ±10 Volts.
• The input has an impedance of 20K ohms.
• Because of the nature of the design, the input will exhibit a 1.4V offset when not driven by an analog
source.
• Low source impedance is important for minimizing analog errors, 100 ohms or lower is recommended.
WARNING – The analog input must be used with care. It is not optically isolated and may
operate improperly or could be damaged when system grounds are not compatible.
Connecting Digital Outputs on the IN/OUT1 connector
The MSSTAC6 drives feature three digital outputs:
Brake: controls an electric brake relay, automatically releasing and engaging as the drive requires
Alarm: closes when a drive fault or alarm condition occurs, the red and green LEDs will flash an error
code
Motion: indicates that the drive has achieved a desired goal, such as a target position
