12
TB MRU3-1 12.00 E
5.4.2
Parameter setting of over- and
undervoltage supervision
The setting procedure is guided by two coloured LEDs.
During setting of the voltage thresholds the LEDs U<,
U<<, U> and U>> are lit green. During setting of the
trip delays t
U>
, t
U>>
, t
U<
and t
U<<
the according LEDs light
up red.
Thresholds of the voltage supervision
During setting of the threshold U>, U>>, U< and U<<
the displays shows the voltages directly in volt. The
thresholds can be changed by the <+> <-> push but-
tons and stored with <ENTER>.
The undervoltage supervision (U< and U<<) as well as
the overvoltage supervision (U> and U>>) can be de-
activated by setting the threshold to "EXIT".
Tripping delay of voltage supervision
During setting of the tripping delays t
U<
, t
U<<
, t
U>
and t
U>>
the display shows the value directly in seconds. The
tripping delay is changed via the push button <+>
and <-> in the range of 0,04 s to 50 s and can be
stored with the push button <ENTER>.
When setting the tripping delay to "EXIT" the value is
infinit meaning only warning, no tripping.
5.4.3
Adjustment of the slave address
By pressing push buttons <+> and <-> the slave ad-
dress can be set in the range of 1 - 32. During this ad-
justment the LED RS lights up.
5.4.4
Setting of Baud-rate (applies for
Modbus-Protocol only)
Different transmission rates (Baud rate) can be set for
data transmission via Modbus Protocol.
The rate can be changed by push buttons <+> and
<-> and saved by pressing <ENTER>.
5.4.5
Setting of parity (applies for
Modbus-Protocol only)
The following three parity settings are possible :
•
"even"
= even parity
•
"odd"
= odd parity
•
"no"
= no parity check
The setting can be changed by push buttons <+> and
<-> and saved by pressing <ENTER>.
5.5
Parameter for the fault recorder
5.5.1
Adjustment of the fault recorder
The
MRU3-1
is equipped with a fault recorder (see
chapter 3.1.5). Three parameters can be determined.
5.5.2
Number of the fault recordings
The max. recording time is 16 s at 50 Hz or 13.33 s
at 60 Hz.
The number of max. recordings requested has to be
determined in advance. There is a choice of (1)* 2,
(3)* 4 or (7)* 8 recordings and dependent on this the
duration of the individual fault recordings is defined,
i.e.
(1)* 2 recordings for a duration of 8 s (with 50 Hz)
(6.66 s with 60 Hz)
(3)* 4 recordings for a duration of 4 s (with 50 Hz)
(3.33 s with 60 Hz)
(7)* 8 recordings for a duration of 2 s (with 50 Hz)
(1,66 s with 60 Hz)
* is written over when a new trigger signal arrives
Caution:
If the fault recorder is used, the frequency should be
set to f = 50 Hz or f = 60 Hz (see chapter 5.3.3).
Содержание MRU3-1
Страница 1: ...MRU3 1 AC voltage relay...
