Inovance MD280NT2.2GB - Page 59

Operation and Display MD280 User Manual
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drive stops immediately after SB1 becomes OFF. The signals from SB2 and SB3
become valid once the two buttons become ON. The running state of the AC drive is
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 2: Communication control
The MD280 provides the RS485 communication port for interaction with the host
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acquire the working state and fault information of the AC drive through communication.
Set F0-00 to 2. Then, you can start or stop the AC drive in communication mode. The
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Figure 4-7 Setting for start/stop using the communication control mode
Host
computer
FA-00: Baud rate
FA-01: Data format
FA-02: Local address
FA-03: Response delay
FA-04: Communication
timeout
The communication
setting in the AC drive
must be consistent with
that in the host computer.
F0-00 2
Running
command
AA-
RS485
MD280
2000 h
When FA-04 is set to a non-zero number, the function of automatic AC drive stop upon
communication timeout is enabled. This prevents uncontrollable AC drive running due
to faults of the communication cable or the host computer.
The communication port of the AC drive supports the Modbus-RTU protocol, and the
communication is implemented only when the host computer supports the Modbus-
RTU master station protocol.
4.4.2 Start Mode
The MD280 supports two start modes, namely, direct start and rotational speed tracking
restart, set in F4-00.
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It is applicable to small-inertia load. The frequency curve in this mode is shown in the
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"DC braking" before the start is applicable to drive of load such as elevator and crane.
"Startup frequency" is applicable to drive with burst start under start torque, such as
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