Technical information

3
Introduction
Analog Velocity
In the Analog Velocity mode, the motor shaft velocity is proportional to an analog voltage
applied to the drive. The drive is now strictly a velocity control and the position loop is
disabled. The Analog Velocity mode is selected with a specific setting of front panel DIP
switches.
Figure 4: Analog Velocity Mode Diagram
Analog Torque
In the Analog Torque mode, the motor shaft torque is proportional to the analog voltage
applied to the command connector. The Analog Torque mode is selected with a specific
setting of front panel DIP switches.
Note
If the motor shaft encounters no resistance and torque is commanded, the motor will run
to full velocity.
Figure 5: Analog Torque Mode Diagram
Pulse/Pulse
In the Pulse/Pulse mode (factory default) there are two inputs. One of the inputs is used for
clockwise pulses; the other, counterclockwise pulses. Supplying a pulse train to the clockwise
input moves the motor shaft in a clockwise direction. Conversely, supplying a pulse train to
the counterclockwise input moves the motor shaft in a counterclockwise direction. The Pulse/
VELOCITY
OF MOTOR
(CW)
(CCW)
(+)
(-)
VOLTAGE
TORQUE
FROM MOTOR
(CW)
(CCW)
(+)
(-)
VOLTAGE