Operation and Display
MD280 User Manual
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4.11 Use of AO Terminals
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in F3-00.
Terminal Output Signal Characteristic
AO-GND
If J3 is connected to the position with "V" mark, it
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If J3 is connected to the position with "I" mark, it
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The AO can be used to indicate the internal running parameters in the analog mode. The
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"b" of the AO can be set by F3-06 and F3-07.
Figure 4-30 Setting of "k" and "b" of AO1
K F3-07
Parameter to be output
AO output
Y after rectification
X before rectification
b F3-06
4.12 Use of Serial Communication
The MD280 provides the RS485 communication port for interaction with the host computer
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RS232/RS485 converter.
The communication parameters are set in group FA. The setting of the communication
parameters in the AC drive must be consistent with that in the host computer; otherwise,
communication fails.
The serial communication port supports the Modbus-RTU slave protocol. On the host
computer, you can send the running command to the AC drive, set function codes, and read
the working state and fault information of the AC drive by means of communication.
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