IDEX Health & Science VS-606V7 Series - Manual (Page 92)

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• Selecting Cooling Fan Operation
In order to increase lifetime, the cooling fan can be set to operate only when inverter is
running.
• Using MEMOBUS (MODBUS) Communications
Serial transmission is available with VS-606V7 using programmable controller
(MEMOCON series) and MEMOBUS.
• MEMOBUS (MODBUS) communications
MEMOBUS system is composed of a single master (PLC) and slaves (1 to 31
VS-606V7 units).
Communication between master and slave (serial communication) is controlled
according to the master program with the master initiating communication and the
slave responding.
The master sends a signal to one slave at a time. Each slave has a pre-registered
address No., and the master specifies the number and conducts signal
communication. The slave receives the communications to carry out designated
functions and reply to the master.
• Communications specifications
n039 = 0 (factory setting) : Operates only when inverter is running.
(Continuous operation for 1 minute after
inverter is stopped.)
1 : Operates with power ON.
Interface RS-422, RS485
Synchronization Asynchronous (Start-stop synchronization)
Communication
parameters
Baud rate: Selected from 2400/4800/9600/19200 bps
Data length: 8bit fixed
Parity: Selected from even/odd/none
Stop bits: 1bit fixed
Communication
protocol
MEMOBUS (MODBUS) (RTU mode only)
Max. number of
inverters that can be
connected
31 units (When using RS-485