UFR1001E
12420-0701-08
Page
17 / 45
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8.3 Description of the parameters
Parameters
Display
Explanation
Adjustment range
Limit value
8
8
8
8
8
8
8
8
8
8
Voltage limit value
8
8
…
8
8
8
8
…
8
8
Limit value
,
8
8
,
8
8
,
8
8
Frequency limit value
8
8
…
8
8
Limit value
8
8
ROCOF, df/dt limit value
8
8
…
8
8
Hysteresis
8
8
253V (Limit) 3V (Hysteresis) =
250V (Reset value)
If the limit value is offset at
8
8
, the
hysteresis also has to be adapted so that
the reset point lies at 50.05 Hz again.
8
8
…
8
8
8
8
…
8
8
Response
time
(delay
Alarm)
8
8
An alarm is suppressed for the set time
(seconds)
8
8
…
8
8
Turn-on time
(delay Off)
8
8
Reset is delayed for the set time, also
during voltage recovery, this time
(seconds) is always counted down in the
display
8
8
…
8
8
Enable time
(delay On)
8
8
There is no evaluation of the vector shift
during this time; starts with the application
of the control voltage and when opening
the Enable input
8
8
…
8
8
VSR
8
8
8
8
: a vector surge on one phase
leads to an alarm
8
8
: a vector surge on all phases
simultaneously leads to an alarm
8
8
…
8
8
Periods
8
8
Measuring time ROCOF, (4=sensitive,
50=insensitive)
Response time=
8
8
* Period du
8
8
8
8
…
8
8
delay
Display
8
8
Interval during which the display is
updated in the display mode,
8
8
…
8
8
8.4 Display mode (last decimal point off)
In the display mode, the UFR1001E is in its normal state; here, depending on the program, the actual
voltage, the highest actual 10 minute mean value, the frequency or the vector surge is displayed. In
addition, the alarm signals (e.g.
8
8
,
8
8
) and error codes (e.g.
8
8
) are displayed.
Function button
Set / Reset
Press briefly: Switches the measurement, alarm counter
Press for > 2 s: Resets after locked alarm
(not possible if doF Reset delay is counting down)
Press for > 4 s: Displays the program, e.g.
8
8
Press for > 10 s: Displays the software version, e.g.
8
8
Function key
Press briefly: Change into the menu mode,
Содержание UFR1001E
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