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Stopping the Drive by Notifying Programming Device Errors to the Drive
(External Fault Function)
The external fault function performs the error contact output, and stops the Drive operation if the Drive
peripheral devices break down or an error occurs. The digital operator will display EFx (External fault [input
terminal Sx]). The x in EFx shows the terminal number of the terminal that input the external fault signal. For
example, if an external fault signal is input to terminal S3, EF3 will be displayed.
To use the external fault function, set one of the values 20 to 2F in one of the parameters H1-01 to H1-10
(multi-function contact input terminal S3 to S12 function selection).
Select the value to be set in H1-01 to H1-10 from a combination of any of the following three conditions.
Signal input level 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-
.
Set
Value
NO Contact NC Contact
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
2E
2F
Note 1. Set the input level to detect errors using either signal ON or signal OFF. (NO contact: External fault when ON; NC contact: External fault when
OFF).
2. Set the detection method to detect errors using either constant detection or detection during operation.
Constant detection: Detects while power is supplied to the Drive.
Detection during operation: Detects only during Drive operation.
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Input Level
Error Detection Method
(See Note 1.)
(See Note 2.)
Constant
Detection
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Operation During Error Detection
Detection
Decelerate
Coast to
During
to Stop
Stop (Error)
Operation
(Error)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Continue
Emergency
Operation
Stop (Error)
(Warning)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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Troubleshooting
