Technical information

33
Installation
Figure 21: Analog Velocity/Analog Torque Modes
In either of the two Analog modes, a ±10 VDC signal is equated to either CW or CCW
maximum programmed velocity in the Analog Velocity mode, CW or CCW full peak torque
rating in the Analog Torque mode.
If an (A) in on the display, the external and serial control modes are not ignored. Sending a
SC=1 (serial command) to the FX drive serial port disables analog control and enables serial
control with an (E.) shown on the display. If an (A) was on the display and an Initiate Index,
Home or Jog command from the I/O occurs, then the (A) is replaced with the appropriate
status indicator code (P, H or J) and the requested motion occurs. At the end of motion the FX
drive will display an (A).
Figure 22: Clockwise Rotation of the Motor
Analog Wiring
In either Analog Mode the ±10.0 VDC command signal is connected through the 15-pin D-
subminiature style command connector located on the left side of the FX amplifier. The input
circuit of the drive is a differential input amplifier with the following characteristics.
The actuator default polarity is “+”. If you change the polarity to “-” in the Drive Parameters
Screen See “Software Setup and Operation” on page 67. The motor will rotate in the opposite
direction (as indicated) with the same polarity signal applied.
VELOCITY
OF MOTOR
(CW)
(CCW)
(+)
(-)
VOLTAGE
TORQUE
FROM MOTOR
(CW)
(CCW)
(+)
(-)
VOLTAGE
TORQUE MODEVELOCITY MODE
FX131