3
vacon • 26 Descriptions of VACON® option boards
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
Encoder connection – Differential
Figure 13. RS-422 type encoder connection using differential inputs
NOTE:
The encoder pulses are handled by VACON
®
software as presented below:
GND
A-
B-
+5V**
5V/15V/24V from the OPT-A4-
board or from external supply*
OPT-A4
board
.
.
10 +5V/+15V/+24V
9GND
1DIC1A+
2DIC1A-
3DIC2B+
4DIC2B-
5DIC3Z+
6DIC3Z-
7ENC1Q
8DIC1
.
.
*If external supply is used remember
to connect the ground of external
supply to terminal #9 of the OPT-A4
and to the encoder ground
**+5V/15V/+24V
Encoder
Tw iste d pa i rs
with own shield
A+
B+
7248.emf
A
OUTPUT SIGNALS
Clockwise, seen from shaft
B
360º el.
1period
90º el. (channel separation)
7249.emf
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