Enable/Disable The Control Output; Sp/Sp2 Selection; Out 1 Failure Detection Function; Direct Access To The Set Point - ero electronic LFS Manuel De Service

ENABLE/DISABLE THE CONTROL OUTPUT

ENABLE/DISABLE THE CONTROL OUTPUT ENABLE/DISABLE THE CONTROL OUTPUT ENABLE/DISABLE THE CONTROL OUTPUT ENABLE/DISABLE THE CONTROL OUTPUT
When the instrument is in "normal display mode",
by keeping depressed for more than 5s
FUNC pushbuttons, it is possible to disable the
control outputs. In this open loop mode the device
will function as an indicator, the lower display will
show the word OFF and all control outputs will
also be in the OFF state.
When the control outputs are disabled the alarms
are also in non alarm condition.
The alarm outputs conditions depend on the
alarm action type (see P19-P21).
Depress for more than 5s and FUNC
pushbuttons to restore the control status.
The alarm stand-by function, if configured, will be
activated as if it was at power up.
If a power down occurs when the control output is
disabled, at intrument power up the control output
will be automatically disabled.
SP - SP2 SELECTION SP - SP2 SELECTION SP - SP2 SELECTION SP - SP2 SELECTION SP - SP2 SELECTION
It is possible to select the operating set point (SP
or SP2) only by an external contact (terminals 14
and 15).
This function excludes the "OUT 1 failure
detection" function and the current transformer.
By setting P41, it is possible to display the final or
the operative set point during a ramp execution.
LFS-1-CC.P65 20

OUT 1 FAILURE DETECTION FUNCTION

OUT 1 FAILURE DETECTION FUNCTION OUT 1 FAILURE DETECTION FUNCTION OUT 1 FAILURE DETECTION FUNCTION OUT 1 FAILURE DETECTION FUNCTION
The device is capable (for the load driven by the
and OUT 1) to measure and display:
- the current running in the load when the load is
energized;
- the leakage current, flowing through the load,
when the load is de-energized.
If the P10 parameter has been correctly set, the
instrument generates an alarm when:
- the current running in the load is lower than the
"Hbd" parameter value (It shows a partial or
total break down of the load, the break down of
the actuator or a power down due to a
protection or a fuse intervention);
- the leakage current is higher than the "SCA"
parameter value (It shows a short circuit of the
actuator).
The "Display function" paragraph describes how
to show the two current values.
A fault condition is shown by OUT 3 LED flashing
and by OUT 3 relay status.
If the ON or OFF period is lower than 400 ms the
relative measurement couldn't be performed and
the instrument will show flashing the last
measured value.

DIRECT ACCESS TO THE SET POINT

DIRECT ACCESS TO THE SET POINT DIRECT ACCESS TO THE SET POINT DIRECT ACCESS TO THE SET POINT DIRECT ACCESS TO THE SET POINT
When the device is in AUTO mode and in "Normal
Display Mode", it is possible to access directly to
set point modification (SP or SP2).
Pushing or for more than 2 s, the set point
will begin changing.
The new set point value becomes operative since
no pushbutton has been depressed at the end of
2 s timeout.
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13/07/2004, 14:40