Instruction manual
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2 SYSTEM CONFIGURATION 
(5) Interface between SY.ENC connector and external equipment 
Transmission method:
serial communications
Position detection
method: absolute
5VDC
Battery
6
17
10 18 19 20
1 2 3 11 12
9
4
14
7
16
Pin No.
Input or 
Output
Signal 
name
Wiring example Internal circuit Specification Description
plate
MR
MRR
P5
LG
SD
TREN
(Note)
TREN.
COM
(Note)
MD
MDR
BAT
Input
Serial
absolute
synchronous
encoder
12VDC to 24VDC
(Note): As for the connection to power line (TREN, TREN.COM), both "+" and "–" are possible. 
CAUTION
 Always use a shield cable for connection of the SY.ENC connector and external equipment, and 
avoid running it close to or bundling it with the power and main circuit cables to minimize the 
influence of electromagnetic interface. (Separate them more than 200mm (0.66 ft.) away.) 
 Connect the shield wire of the connection cable to the FG terminal of the external equipment. 
 When increasing the cable length, use the cable 50m(164.04ft.) or less. Note that the cable 
should be run in the shortest possible distance to avoid induced noise. 
 Always wire the cables when power is off. Not doing so may damage the circuit of modules. 
 Wire the cable correctly. Wrong wiring may damage the internal circuit. 










