2 encoder feedback signals ea, eb and ez, Encoder feedback signals ea, eb and ez – ADLINK PCI-8158 User Manual
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Signal Connections
23
Suggest Usage: Jumper 2-3 shorted and connect OUT-/DIR- to a
470 ohm pulse input interface’s COM of driver. See the following
figure. Choose OUT-/DIR- to connect to driver’s OUT/DIR
Warning: The sink current must not exceed 20mA or the
26LS31 will be damaged!
3.2 Encoder Feedback Signals EA, EB and EZ
The encoder feedback signals include EA, EB, and EZ. Every axis
has six pins for three differential pairs of phase-A (EA), phase-B
(EB), and index (EZ) inputs. EA and EB are used for position
counting, and EZ is used for zero position indexing. Its relative sig-
nal names, pin numbers, and axis numbers are shown in the fol-
lowing tables:
P1 Pin No Signal Name Axis # P1 Pin No Signal Name Axis #
13
EA0+
0
14
EA0-
0
15
EB0+
0
16
EB0-
0
31
EA1+
1
32
EA1-
1
33
EB1+
1
34
EB1-
1
63
EA2+
2
64
EA2-
2
65
EB2+
2
66
EB2-
2
81
EA3+
3
82
EA3-
3
83
EB3+
3
84
EB3-
3