User Manual of A90 Series Inverter PID settings are determined in conjunction with the setting of the function code F09.00. The A90 series inverter has a multi-segment PID setting function, and its switching conditions are mainly dependent on the input functions “15: multi-segment PID terminal 1” and “16: multi-segment PID terminal 2”, as detailed in Table 7-16. Table 7-16 Details of Multi-segment PID Setting Function 7.11 Communication Function Parameter Group of F10 Group The A90 series inverter supports the RTU format Modbus protocol, and the “single-master multi-slave” communication network with RS-485 bus.
For the entire communication network, the inverter as a slave must have its own unique address. Its setting range is 1 to 247. That is, a network supports 247 slave stations at most. ★ 0 is the broadcast address, which does not need to be set. All slave inverters can be recognized. The slaves and hosts attached to the same network must follow the same sending and receiving principles (e.g. baud rate, data format, and protocol format) to ensure normal communication. Hence, there are three corresponding function codes, i.e. F10.01 (baud rate), F10.02 (data format) and F10.10 (protocol format, Modbus-RTU protocol by default for the A90 series inverter).
The devices connected to the network must have the same settings. 209 Method Setting Scope PID Setting 16 15 F09.00 Invalid Invalid 0 F09.01 0.0 - F09.03 0.00% - 100.00% 1 AI1 -100.00% - 100.00% -100.00% - 100.00% 2 AI2 -100.00% - 100.00% -100.00% - 100.00% 6 485 -100.00% - 100.00% -100.00% - 100.00% Invalid Valid -- F09.32 0.0 - F09.03 0.00% - 100.00% Valid Invalid -- F09.33 0.0 - F09.03 0.00% - 100.00% Valid Valid -- F09.34 0.0 - F09.03 0.00% - 100.00% Function Default Function code name Parameter description Unit Attribute code setting F10.00 Local Modbus communication address 1-247; 0: broadcast address 1 ○