Aerotech BAL LINEAR AMPLIFIER SERIES, User Manual, Page: 17 / 56

BA Linear Series User’s Manual Introduction
Version 1.5
Aerotech, Inc.
1-9
Table 1-4. Connector J6 Pinouts (Continued)
Pin # Input or
Output
Signal Function
Pin 17 input
(1)
Hall C Hall effect C. One of three commutation signals used with brushless
motors. Used in conjunction with Hall effect A and Hall effect B.
Pin 18 input sine Sine signal from encoder. Optionally used, in conjunction with cosine for
deriving an electronic tachometer signal. Line receiver input.
Pin 19 input sine-N Compliment of sine (J6- 18). Line receiver input.
Pin 20 input power On board 5V power supply. Same as J6 pin 2.
Pin 21 input -input Inverting input of differential input circuit. A positive voltage on this input
causes CW motor rotation (torque or velocity mode). For single ended
command operation, ground this connection and connect signal to Pin 8 of
J6.
Pin 22 input icmdb Current command B. Jumper selectable current command input. Bypasses
differential input, pre-amplifier, and self-commutation.
Pin 23 output -fault Jumper selectable active high or active low (open collector) output. Used
to indicate the status of the power stage (amplifier enabled or faulted).
Pin 24
input
(1)
-ilmt Directional current limit input. When pulled to its active state, motion in
the negative direction (CCW motor shaft rotation) is inhibited (jumper
selectable).
Pin 25 output -icmd Current command monitor. Representative of the current command (self
commutating modes only).
1. Denotes input pull up to in5 V through a 10K resistor.