70
5. Auxiliary stop function (Parameters: P19, P20, P21/Data setting value: 4)
This function is used to carry out fault stop (emergency stop) from a source outside of
the inverter.
In the normal state, the ON signal is input. A fault stop will occur when this is turned
OFF. (The fault display is "AU".)
<<Example>>
When SW1 (parameter P19=4) is set to auxiliary stop, and local/
external control is set to "2"
Inverter operation status
Closed
Auxiliary stop signal
Auxiliary
stop
ON
Start/stop signal
Inverter trip state
ON
ON
Run
Run
Closed
3
5
Start/stop
Common
[Terminal connection]
7
Auxiliary
stop
signal
b contact signal
Fault reset
Opened
∗
Even if the auxiliary stop signal is "opened", the fault can be reset by turning the
start/stop signal OFF. However, a fault trip will occur when the start/stop signal is
turned ON again. Normal operation can be resumed by "closed" the auxiliary stop
signal and then turning the start/stop signal ON.
6. Coast-to-stop function (Parameters: P19, P20, P21/Data setting value: 5)
This function is used to coast the inverter to a stop with a signal from an external
source.
(The fault display and fault warning output are not output.)
<<Example>>
When SW1 (parameter P19=5) is set to coast to a stop, and local/
external control is set to "2"
Inverter operation status
ON
Coast-to-stop signal
Coast-to-stop
ON
Start/stop
signal
Run
Run
3
5
Start/stop
Common
[Terminal connection]
7
Coast-to-stop
signal
ON
Coast-to-stop
[Important]
The inverter will restart immediately if the start/stop signal is ON when
the coast-to-stop signal changes from ON to OFF. Provide sufficient
safety means.
