STAC6 Drives and Microstepping Motors:
User Manual
(Discontinued Product)
• 1.28 •
1:
H A R D W A R E
THREE DEDICATED MODES
•
Analog Torque Mode
•
Analog Velocity Mode
•
Analog Positioning Mode
Each of these three modes uses the analog input for "Commanding"
the stepper drive. Other uses include using an analog signal to stop
a move when using any of the "Feed to Sensor" type moves and
waiting on a analog signal using the "Wait on Input".
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 - 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 an Analog Input to a Potentiometer or Joystick
Figure 1.32: Analog Pot