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Settin 1
PI Disable
Close a digital input to indefinitely disable the PI function. When the input is released, the drive resumes PI operation.
to PI Block Diagram on page
Settin 1B Pro ram Loc out
Parameter values cannot be changed when an input is programmed for Program Lockout and the input is open. It is still possible,
however, to view and monitor parameter settings.
Settin 1E
e erence Sample old
This function allows the user to sample an analog frequency reference signal being input to terminal A1 or A2 and hold the
frequency reference at the sampled level. When the Analog Frequency Reference Sample/Hold function is held for at least
100 ms, the drive reads the analog input and changes the frequency reference to the newly sampled speed as illustrated in
Figure
1.36.
When the power is shut off and the sampled analog frequency reference is cleared, the frequency reference is reset to 0.
An oPE03 error will occur when one of the following functions is used simultaneously with the Analog frequency reference
sample/hold command:
• Hold accel/decel stop (Setting: A)
• Up command, Down command (Setting: 10, 11)
• Offset frequency (Setting: 44 to 46)
Settin 2 to 2F E ternal Fault
The External fault command stops the drive when problems occur with external devices.
To use the External fault command, set one of the multi-function digital inputs to a value between 20 and 2F. The HOA keypad
will display EF
where
For example, if an external fault signal is input to terminal S3, "EF3" will be displayed.
Select the value to be set in H1-
• Signal input level from peripheral devices (N.O., N.C.)
• External fault detection method
• Operation after external fault detection
The following table shows the relationship between the conditions and the value set to H1-
Terminal statuses, detection conditions, and stopping methods marked with an "O" are applicable to the corresponding settings.
erminal Status
Settin
N O
N C
20
O
21
-
22
O
23
-
40.
Reference
Sample Hold Input
Fi ure 1
Analo Fre uency e erence Sample/ old
is the number of the terminal to which the external fault signal is assigned.
from a combination of any of the following three conditions:
<1>
Detection Conditions
Detected
Al ays
durin
Detected
only
-
O
O
O
-
-
O
-
OFF
ON
100 ms
100 ms
<2>
amp to Stop
Coast to Stop
un
( ault)
-
O
-
O
O
O
O
O
1 7
erminal Functions
Frequency
Reference
Time
:
Stoppin Met od
Fast Stop
( ault)
( ault)
-
-
-
-
-
-
-
-
Refer
1
Alarm Only
(continue
runnin )
-
-
-
-
7
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