57
2- and 3--Channel Brushless DC Servo Controller
A.3
Rear Panel USER IO Connector
The ‘USER I/O’ connector exposes a number of electrical signals useful for
monitoring purposes or fault diagnosis.
Notes.
(i)
Or general purpose digital input - see Section A.3.2.
(ii)
Or general purpose digital output (open collector) - see Section A.3.1.
(iii)
Buffered versions of Encoder Quadrature signal for monitoring purposes
(iv)
Encoder index (or reference) signal for monitoring purposes
Fig. A.3 CONTROL I/O connector pin identification
Pin
Description
Return
Pin
Description
Return
1
5V
9
9
(iii)
QA+
–
2
(i)
Trigger In
9
10
(iii)
QA-
9
3
(ii)
Trigger Out
9
11
(iii)
QB+
9
4
Ground
–
12
(iii)
QB-
4
5
Ground
–
13
(iv)
Index/Ref+
9
6
For Future Use
–
14
(iv)
Index/Ref-
6
7
For Future Use
–
15
Ground
9
8
For Future Use
–
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
