The I/O Port; Sin, Sin-N, Cos, Cos-N Signals; Table 5-2. I/O Connector Pinouts (P1) - Aerotech BA-SineDrive Series User Manual

Technical Details
5.3.
The I/O port is a 25-pin "D" style connector that contains all of the general purpose I/O
functions. These include:
The digital I/O are opto-isolated inputs and outputs. One of the two dedicated I/O signals
enables/disables the power stage externally and the second indicates the fault status in the
amplifier.
The analog I/O port can accept a +/- 10 volt differential input. This signal can represent a
current or velocity command from another controller.
The pinouts for the 25-pin connector are shown in Table 5-2.
To preserve signal integrity and reduce noise, a well-shielded cable must be used to send
the current and velocity commands to the BAS.
Table 5-2.

5.3.1. SIN, SIN-N, COS, COS-N Signals

These signals represent the encoder signals (A, /A, B, /B) from the encoder port. The
encoder feedback is required in either torque or velocity mode in order to perform
sinusoidal commutation in the BAS. The same encoder signals can be split to connect to
the user's position controller to close the position loop. To minimize this effort, the
encoder signals on P3 are connected to P1 on pins 21 to 24 (see Table 5-2).
5-6
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The I/O Port

•
2 dedicated digital I/O signals (External Enable/Amp Fault)
•
and 1 dedicated analog input (INPUT +/-) for the command
I/O Connector Pinouts (P1)
Pin Function
1 Shield
2 CW Limit
3 CCW Limit
4 Home Limit
5 External Enable
6 Input Common
7 MRKR -N
8 MRKR
9 Output Common
10 Fault Out
15, 25 Ground
16 +5V
CW, CCW, MRKR, MRKR-N, SIN, SIN-N, COS, and COS-N are electrically
connected to the same pins on P3. These can be considered outputs.
Aerotech, Inc.
BA SineDrive User's Manual
Pin Function
17 Input+
18 Input-
19 Thermistor
20 Restore/Reset
21 SIN
22 SIN-N
23 COS
24 COS-N
Version 1.4