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3.4.2 Master (auxiliary) encoder input - X6
Location Connector X6
Pin Name
1 CHA+
2 CHB+
3 CHZ+
4 (not connected)
5 DGND
6 CHA-
7 CHB-
8 CHZ-
9 +5V
Description Optically isolated encoder input on a 9 -pin female
D-type connector
The MintDrive provides an auxiliary (master or handwheel) encoder input which allows following of a
master encoder. An interface for a three channel, incremental encoder (CHA, CHB, CHZ) is provided.
The input receiver circuit allows only encoders with differential line drivers (RS422) to be used.
Single -ended operation is not supported. The interface also provides an isolated 5V supply for the
encoder electronics, capable of driving up to 100mA. These inputs are sampled every 0.5, 1 or 2ms.
CAUTION: The auxiliary encoder input does not conform to the standard on other Mint based
controllers such as NextMove.
CHA+
CHA--
CHB+
CHB--
+5V
DGND
1
6
2
7
3
8
9
5
X6
Encoder
CHZ+
CHZ--
Connection of shields
to digital ground is optional.
Connector backshell
Twisted pairs
Figure 21 - Differential encoder connections
1
5
6
9