Omron 3G3RX Series, User Manual

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4-101
4-2 Function Mode
4
Func
tions
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".
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. Function name Data Default setting Unit
C021 to C025
Multi-function output
terminal selection
32: NDc (network communication
disconnection detection)
⎯
⎯
C026
Relay output (MA, MB)
function selection
05
C077
Communication error
timeout
0.00 to 99.99:
Set a time before reception timeout.
0.00 s
External controller
Inverter
Monitor timer
Communication trip time
(C077)
Communication disconnection detection signal (NDc)
Parameter No. Function name Data Default setting Unit
C021 to C025
Multi-function output terminal
selection
40: WAF
(cooling fan life warning signal)
⎯
⎯
C026
Relay output (MA, MB)
function selection
05
Related functions b092, d022