Omron SYSDRIVE MX2 SERIES - Communication Disconnection Detection Signal (Ndc); Starting Contact Signal (FR)

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5-9 Functions Relating to Protections, Warnings and Various Output Signals
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
Communication Disconnection Detection Signal (NDc)
Enabled only when Modbus communication (Modbus-RTU) is selected for RS485
communication.
If a reception timeout error occurs, this signal is output until reception of the next data.
Set a time before reception timeout in Communication Error Timeout Time(C077).
For details, refer to Chapter 6, "Communication Function".
Starting Contact Signal (FR)
While the Inverter is receiving the RUN command, a starting contact signal is output.
This signal is output regardless of the setting of RUN Command Selection (A002).
If inputs FW and RV are simultaneously turned on, the Inverter stops.
External controller
Inverter
Monitor timer
Communication error (NDc) output
Communication Error Timeout
(C077)
Parameter
No.
Function name Data
Default
setting
Unit
C077
Communications
Error Timeout
Time
0.00 to 99.99
Set a time before reception timeout. 0.00 s
C021 to C022
Multi-function
Output Terminal
Selection
32: NDc (Communication
disconnection detection)
−−
C026
Multi-function
Relay Output
Function Selection
Parameter
No.
Function name Data
Default
setting
Unit
C021 to C022
Multi-function
Output Terminal
Selection
41: FR (Starting contact signal) −−
C026
Multi-function
Relay Output
Function Selection
Forward command (FW)
Reverse command (RV)
Starting contact (FR) output