Lenze 9300 Servo PLC - 3.1.2 Wiring of the system bus

9300 Servo PLC
Connection
3-3

9300ServoPLC EN 1.4
3.1.2 Wiring of the system bus
Basic structure shown at a Drive PLC with 8200 vector
plc014
Drive PLC Controller 1 Controller 2
GND LOW HI GG LO HI GG LO HI GG LO HI GG LO
120
120
HI
PES PES
Abb. 3-1 Basic structure of a system bus network
Comments on wiring
We recommend the following signal cable for the wiring:
Specification system bus cable Totallengthupto300m Total length up to 1000 m
Cable type LIYCY2x2x0.5mm
2
(twisted pairs, with screening)
CYPIMF2x2x0.5mm
2
(twisted pairs, with screening)
Cable resistance ≤ 40 Ω/km ≤ 40 Ω/km
Capacitance per unit length ≤ 130 nF/km ≤ 60 nF/km
Connection Pair 1 (white/brown): LO and HI
Pair 2 (green/yellow): GND
Tab. 3-1 Specification of the system bus cable
Tip!
• A terminating resistor of R = 120Ω must be connected to the first and last physically
connected device (see Abb. 3-1).
• Connect cable screen over a large surface to PE potential (PES).
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