Omron SYSDRIVE RX Series User Manual page 210

4-2 Function Mode
Network Error
•Enabled only when 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 C077.
•For details, refer to "4-4 Communication Function".
Parameter No.
C021 to C025
C026
4
C077
Communication disconnection detection signal (NDc)
Cooling Fan Speed Drop Signal
•This signal is output when detecting that the Inverter's built-in cooling fan rotation speed is reduced
to 75% or less.
•If "01" is selected in cooling fan control b092, this signal is not output even while the fan is stopped.
•While this signal is output, check the cooling fan for clogging.
•Life assessment monitor d022 shows the status of this signal.
Parameter No.
C021 to C025
C026
Related functions
4-101
Function name
Multi-function output
terminal selection
32: NDc (network communication
Relay output (MA, MB)
function selection
Communication error 0.00 to 99.99:
timeout Set a time before reception timeout.
External controller
Inverter
Monitor timer
Function name
Multi-function output terminal
selection
Relay output (MA, MB)
function selection
Data
disconnection detection)
Communication trip time
(C077)
Data
40: WAF
(cooling fan life warning signal)
b092, d022
Default setting Unit
⎯
⎯
05
0.00 s
Default setting Unit
⎯
⎯
05