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Communication functions (Pr. 117 to Pr. 124, Pr. 342)
(6) Communication specifications for RS-485 communication
(*1) As set in the Pr. 79 external/PU combined mode.
(*2) At occurrence of RS-485 communication error, the inverter cannot be reset from the computer.
(*3) As set in Pr. 75.
(*4) As set in Pr. 77.
(7) Operation at alarm occurrence
(*5) Can be selected using the parameter (factory-set to Continued).
(8) Communication error
Operation Location Item
Operation Mode
Communication
operation from
PU connector
External operation
Computer link operation
(When plug-in
option is used)
On-computer user
program from PU
connector
Run command (start) Enabled Disabled Disabled
Running speed setting Enabled
Enabled
(Combined
operation mode)
Disabled
Monitoring Enabled Enabled Enabled
Parameter write Enabled (*4) Disabled (*4) Disabled (*4)
Parameter read Enabled Enabled Enabled
Inverter reset Enabled (*2) Enabled (*2) Enabled (*2)
Stop command (*3) Enabled Enabled Enabled
On-computer user
program from plug-in
option
Run command Disabled Disabled Enabled (*1)
Running speed setting Disabled Disabled Enabled (*1)
Monitoring Enabled Enabled Enabled
Parameter write Disabled (*4) Disabled (*4) Enabled (*4)
Parameter read Enabled Enabled Enabled
Inverter reset Disabled Disabled Enabled (*2)
Stop command (*3) Disabled Disabled Enabled
Control circuit terminal
Inverter reset Enabled Enabled Enabled
Run command Disabled Enabled Enabled (*1)
Speed setting Disabled Enabled Enabled (*1)
Alarm Location State
Operation Mode
Communication
operation
(PU connector)
External
operation
Computer link operation
(When plug-in option
is used)
Inverter fault
Inverter operation Stop Stop Stop
Commu
nication
PU connector Continued Continued Continued
Plug-in option Continued Continued Continued
Communication error
(Communication from PU
connector)
Inverter operation Stop/continued (*5) Continued Continued
Commu
nication
PU connector Stop Stop Stop
Plug-in option Continued Continued Continued
Alarm Location Error Message
Communication error
(Error in communication from PU connector)
E.PUE