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Wiring Module Connectors Section 3-3
• The wiring for an encoder with a line-driver output (Am26LS31 or equiva-
lent) is shown below.
Connecting a Servo Driver (OMRON's W Series) Compatible with an Absolute
Encoder (FQM1-MMP21/MMA21)
3
Differential phase input mode
Encoder
5
9
11
15
17
A+
Black
B+
White
Z+
Orange
5 V DC
Brown
0 V
Blue
A−
Black striped
B−
White striped
Z−
Orange striped
5-V DC power supply
5 V
0 V
FQM1
Pulse input 1: Phase A, LD +
Pulse input 1: Phase A, LD −
Pulse input 1: Phase B, LD +
Pulse input 1: Phase B, LD −
Pulse input 1: Phase Z, LD +
Pulse input 1: Phase Z, LD −
3
5
9
11
15
17
Encoder
Power supply
Shielded twisted-pair cable
Z−
Z+
B+
A+
B−
A−
FQM1
Example:
E6B2-CWZ1X
line driver output
25
3
5
9
11
15
17
4
6
10
12
16
18
IA
IB
IZ
FQM1
27
23 24
SEN
SENGND
OMRON W-series Servo Driver Compatible
with Absolute Encoder
Encoder phase A
output
Encoder phase Z
output
Encoder phase B
output
Shielded twisted-pair
cable
External
power
supply
(5 V)