Input Terminal Functions
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îš‹ Stopping the Inverter on External Faults (External Fault Function)
The external fault function can activate the fault relay output and can stop the Inverter operation by a digital
input. The Digital Operator will display EFx where x is the number of the digital input the fault signal is con-
nected to.
To use the external fault function, set one of the values 20 to 2F in one of the parameters H1-01 to H1-05 (dig-
ital input terminal S3 to S7 function selection).
Select the value to be set in H1-01 to H1-05 from a combination of any of the following three conditions.
• Signal logic from peripheral devices
• External fault detection method
• Operation during external fault detection
The following table shows the relationship between the combinations of conditions and the set value in H1-01
to H1-05.
Set
Value
Signal Logic Fault Detection Method
Operation During Fault Detection
NO
Contact
NC
Contact
Continuous
Detection
Detection
During
Operation
Deceler-
ate to Stop
(Fault)
Coast to
Stop
(Fault)
Fast Stop
(Fault)
Continue
Operation
(Warning)
20 Yes Yes Yes
21 Yes Yes Yes
22 Yes Yes Yes
23 Yes Yes Yes
24 Yes Yes Yes
25 Yes Yes Yes
26 Yes Yes Yes
27 Yes Yes Yes
28 Yes Yes Yes
29 Yes Yes Yes
2A Yes Yes Yes
2B Yes Yes Yes
2C Yes Ye s Ye s
2D Yes Yes Yes
2E Ye s Yes Yes
2F Yes Yes Yes
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