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Wiring Module Connectors Section 3-3
3-3-3 Wiring Examples
Connecting Pulse
Inputs (FQM1-MMP21/
MMA21)
Connect the output from an encoder to the connector in the following way,
according to the port's counter operation.
Note The numbers in parentheses are the pin numbers on the negative side.
Example • The wiring for an encoder (24 V) with an open-collector output is shown
below. These examples are for encoders with phases A, B, and Z.
Port 1 Port 2 Signal name Encoder output
Pin number Pin number Phase Differential
Input Mode
Increment/Decrement
Pulse Input Mode
Pulse + Direction
Input Mode
24 V: 1 (5) 24 V: 2 (6) Encoder input A Encoder phase-A input Increment pulse input Pulse input
24 V: 7 (11) 24 V: 8 (12) Encoder input B Encoder phase-B input Decrement pulse input Direction signal input
1
Pulse input 1: Phase A, 24 V
FQM1
Differential phase input mode
Phase A
Black
Phase B
White
Phase Z
Orange
+Vcc
Brown
0 V (COM)
Blue
24-V DC power supply
0 V
24 V
Encoder
(Power supply: 24 V DC)
5 Pulse input 1: Phase A, 0 V
7 Pulse input 1: Phase B, 24 V
11 Pulse input 1: Phase B, 0 V
13 Pulse input 1: Phase Z, 24 V
17 Pulse input 1: Phase Z, 0 V
1
5
7
11
13
17
0 V
24 V
0 V
Encoder
Power supply
−
Shielded twisted-pair cable
Do not share the power supply with other I/O)
IA
IB
IZ
Phase A
Phase B
Phase Z
+
FQM1
Example:
E6B2-CWZ6C
NPN open-
collector output
Power
supply