LS Mecapion L7 A001, User Manual

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6. Communication Protocol
6-1
6. Communication Protocol
6.1 Overview and Communication
Specifications
6.1.1 Overview
The L7 servo drive uses RS-422 serial communication. By connecting it to a PC or an upper
level controller, you can test drive it or change gain tuning and parameters.
You can also operate or handle communication of up to 32 axes by connecting multiple L7
servo drives via a multi-drop method.
(1) Serial Communication Access through RS422
CN4
CN3
Serial Port
RS-232C/422
Communication
Converter
Servo
Drive PC
(2) Multi-Drop Access through RS422 (up to 32 machines)
CN4
CN3
Serial Port
RS-232C/422
Communication
Converter
Servo
Drive PC
CN4
CN3
Servo
Drive
CN4
CN3
Servo
Drive
NOTE 1) When using a PC as the upper level controller, you have to use the RS232/RS485 communication
converter.
NOTE 2) The CN3 and the CN4 connector pins of the servo drive are connected on an one-to-one basis
internally, making multi-drop wiring easy.