Stopping The Inverter On External Device Errors (External Fault Function) - Omron VARISPEED L7 Manual

If S1-12 = 0 the Up/Down command has to be cycled.
•
Up/Down
Baseblock
Output frequency
During Run 1 Output
During Run 2 Output
If S1-12=1 the Up/Down command must not be cycled. The inverter automatically restarts when base-
•
block is deactivated and the Up/Down command is still active.
Up/Down
Baseblock
Output frequency
During Run 1 Output
During Run 2 Output

Stopping the Inverter on External Device Errors (External Fault Function)

The external fault function activates the fault contact output and stops the Inverter operation. Using this func-
tion the inverter operation can be stopped by the break down of peripheral devices or other external errors. The
digital operator will display EFx (External fault [input terminal Sx]). The x in EFx shows the number of the
terminal at which the external fault signal is input. 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 H1-05 (dig-
ital input terminal S3 to S7 function selection).
Select the set value for H1-01 to H1-05 by a combination of any of the following three conditions.
Signal input level from peripheral devices
•
External fault detection method
•
Operation after external fault detection
•
The following table shows the relationship between the external fault conditions and the set value in H1-
Input Level
(See Note 1.)
Set
Value
NO Contact NC Contact
20 Yes
21 - Yes
22 Yes
23 - Yes
24 Yes
25 Yes
26 Yes
OFF ON
OFF
ON
S1-16 +
S1-04
OFF ON
OFF
ON
OFF ON
OFF
ON
S1-16 +
S1-04
OFF ON
OFF ON
Error Detection Method
(See Note 2.)
Detection
Constant
During Oper-
Detection
ation
- Yes -
Yes -
- - Yes
- Yes
- Yes -
Yes -
- - Yes
S1-16 +
S1-04
S1-16 +
S1-04
Operation During Error Detection
Decelerate
Coast to Emergency
to Stop
Stop (Error) Stop (Error)
(Error)
Yes -
Yes -
Yes -
Yes -
- Yes
- Yes
- Yes
6
.
Continue
Operation
(Warning)
- -
- -
- -
- -
- -
- -
- -
51
6-