Toshiba VF-A7 Communication function RS485/common serial, Common serial optional device

6.30 Communication function (RS485/common serial)

 ：Communication rate (common serial)

 ：Parity (common serial/RS485)

 ：Inverter number (common)

 ：Communication time-out (common serial/RS485)

 ：Communication time-out action (common serial/RS485)

 ：Communication waiting time (common serial)

 ：Inter-drive communication (common serial)

 ：Frequency point selection

 ：Point #1 setting

 ：Point #1 frequency

 ：Point #2 setting

 ：Point #2 frequency

 ：Communication rate (RS485)

 ：RS485 wiring system

 ：RS485 communication waiting time

 ：Inter-drive communications (RS485)

・Function

These parameters set up a data communications network by connecting inverters to one another and to a host control system, and also establish a data communications link between a computer and each inverter.

＜Computer link＞

The function is to enable data communications between a host control system (computer) and each inverter.

①Monitoring of inverter status (output frequency, current, voltage, etc.)

② Command to each inverter (start command, stop command, etc.) ③ Load, modify, and save of inverter's parameter setting

＜Inter-drive communication＞

Designed to enables an inverter (master) to send data selected with parameters to the other inverters (slaves) on the network. With this function, you can establish a network to perform simplified synchronous or proportional operation (point frequency setting).

☆Timer function .…Designed to detect broken communications cables. With this function,

you can set the inverter in such a manner that it can trip ("" is displayed) or an alarm goes off. ("" is displayed on the panel) if it receives no data within the predetermined time.

☆Broadcast communication ... Designed to send data to more than one inverter at a time. ☆Inter-drive communication ...The master inverter transmit the data that was chosen with

the parameter to all the slave inverters on the same network. Using this function, the network that performs synchronized operation and proportion operation (point frequency setting) in simple way can be constituted.

6.30.1 Common serial optional device

With RS232C unit (optional), and RS485 unit(optional), connect inverters to a higher-order control system (host computer) to establish a data communications network between them. Also, you can establish a data communications link between a computer and each inverter(RS485).

☆the common serial options available:

･RS232C communications converter units (model: RS2001Z)

Communication cable (model: CAB0011 (1 m), CAB0013 (3 m), CAB0015 (5 m))

･RS485 communication converter unit (model: RS4002Z)

Communication cable (model: CAB0011 (1 m), CAB0013 (3 m), CAB0015 (5 m))

(Note) Distance between Inverter and a common serial option should not be more than 5 m apart.

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