Manual MRR1 SEG Electronics GmbH
DOK-TD-MRR1, Rev. B 13
5.2 Setting procedure
Before changing a parameter a password has to be entered first (see chapter 4.4 of description
"MR-digital multifunctional relay).
The gradual changing procedure is clearly explained in the following table:
Checkback: really storing?
Enter password, a combination of 4 push
buttons
<ENTER>, <+>, <-> or
<SELECT/RESET>
When password correct: storing of new
parameter
Table 5.3: Changing of parameters and storing
5.2.1 Pickup value and tripping delay
For each element the pickup value and tripping de-lay can be adjusted. When the set pickup value
is either exceeded or falls below, the corresponding LED flashes. After elaps of the tripping delay
trip of the relay is initiated. Should the duration of pickup be shorter than the set tripping delay, this
is signaled by periodical flashing of the corresponding LED. This indication can be cancelled by
pressing push button <SELECT/RESET>.
Complete blocking of an element :
An element is blocked when the parameter is set to EXIT by pressing repeatedly push button <->
or <+>.
Warning only:
Should only excitation of an element be intended and not tripping, the respective trip delay can be
set to EXIT by push button <+> (pressed repeatedly) and then pickup only is indicated by the
LEDs.
5.2.2 Setting of slave address
When pressing push buttons <+> and <-> the slave address can be set in the range from 1 - 32,
hereby LED RS lights up.
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