Chapter 7 Explanation of Functions
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7.8.6 External trip (EXT) function
The external trip function allows you to make the inverter trip according to the error (trip) signal generated
by an external system.
To use this function, assign function "12" (EXT) to one of the terminal [1] to [5] functions (C001 to C005).
When the EXT terminal is turned on, the inverter trips with error code "E12" displayed and stops the
output.
After the inverter trips with error code "E12" displayed, it will not be recovered from tripping, even when the
error signal from the external system is reset (i.e., the EXT terminal is turned off).
To recover the inverter from tripping, reset the inverter or turn the inverter power off and on.
Item Function code Data Description
Terminal [1] to [5] functions C001 to C005 12 EXT: External trip
Note: Do not turn on the EXT terminal after the inverter power is shut off. Otherwise, the error history may
not be stored correctly.
Operation commands
FW and RV
EXT terminal
Motor speed
RS terminal
Alarm output terminal
Free running
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