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Input / Output 4-17MN1901
CHA+
CHA--
CHB+
CHB--
+5V
DGND
1
6
2
7
3
8
9
5
X9
CHZ+
CHZ --
Twisted pairs
Connect overall shiel d
to connector backshells.
Connect internal
shields to DGND.
Master
Encoder
Figure 41 - Differential encoder connections
4.4.2.1 Dual encoder feedback
The master encoder input can be used as a second feedback input in dual encoder systems.
The Mint keyword AXISPOSENCODER is used to select the master (auxiliary) encoder input as
a feedback input. See the Mint help file for details.
4.4.2.2 Pulse and Direction following
The master encoder pulse and direction inputs accept 5V differential line driver (RS422)
signals from an external source. The pulse frequency controls the speed, and the state of the
direction signal controls the direction of motion. A positive direction voltage (greater than
200mV) will result in motion in one direction. A negative direction voltage (less than - 200mV)
will result in movement in the opposite direction.
The Mint keyword AUXENCODERMODE (bit 2) is used to configure X9 for pulse and direction
operation. If necessary , the sense of the direction input can be reversed in software using the
Mint keyword AUXENCODERMODE (bit 0). See the Mint help file for details.
Note: If X9 has been configured for pulse and direction input, the alternative pulse and
direction inputs, available on connector X3, cannot be used. See the Mint keyword
MASTERSOURCE.
Pulse +
Pulse - (GND)
Direction+
Direction - (GND)
DGND
1
6
2
7
5
X9
Twisted pairs
Pulse and direction
source
Pulse
Direction
Connect overall shiel d
to connector backshells.
Connect internal
shields to DGND.
Figure 42 - Pulse and direction connections
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