UFR1001E
12420-0701-03
Page
16 / 36
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8.3 Description of the parameters
Parameters
Display
Explanation
Adjustment range
Limit value
8
U,,
8
8
U,
8
8
u_
8
8
U__
8
8
Um
8
Voltage limit value
8
15.0
8
…
8
300
8
8
15.0
8
…
8
520
8
Limit value
F,,
,
8
F,
8
,
8
F_
8
,
8
F__
8
Frequency limit value
8
45.00
8
…
8
65.00
8
Limit value
8
dfdt
8
ROCOF, df/dt limit value
8
0.10
8
…
8
5.00
8
Hysteresis
8
H
8
253V (Limit)
– 3V (Hysteresis) =
250V (Reset value)
If the limit value is offset at
8
F,
8
, the
hysteresis also has to be adapted so that the
reset point lies at 50.05 Hz again.
8
1.0
8
…
8
99.0
8
8
0.05
8
…
8
10.00
8
Response
time
(delay Alarm)
8
dAL
8
An alarm is suppressed for the set time
(seconds)
8
0.05
8
…
8
130.0
8
Turn-on time
(delay Off)
8
dOF
8
Reset is delayed for the set time, also during
voltage recovery, this time (seconds) is always
counted down in the display
8
0
8
…
8
999
8
Enable time
(delay On)
8
dEon
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
2
8
…
8
20
8
VSR
8
VSR
8
8
1 Ph
8
: a vector surge on one phase leads to
an alarm
8
3 Ph
8
: a vector surge on all phases
simultaneously leads to an alarm
8
1 Ph
8
…
8
3 Ph
8
Periods
8
per
8
Measuring time ROCOF, (4=sensitive,
50=insensitive)
Response time=
8
per
8
* Period du
8
dal
8
8
4
8
…
8
50
8
delay Display
8
ddi
8
Interval during which the display is updated in
the display mode,
8
0.1
8
…
8
2.0
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
aL
8
,
8
aL m
8
) and error codes (e.g.
8
err9
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
Pr 1
8
Press for > 10 s: Displays the software version, e.g.
8
0-04
8
Function key
Up / Down
Press briefly: Change into the menu mode,
Display alarm counter: Down = Query the memory
Up = Query the cumulative alarm time
Press for ≥ 2 s: Displays MAX and MIN measurements,
additionally
pressing the Set key for ≥ 2 s deletes the saved
values
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