Mains pro 1.6.1 Global Guide
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4.1.6 Factory default
MainsPro contains a default set of all setpoints, which corresponds to the typical requirement of distribution
network operator in some countries.
1. Enter the init screen, by pushing the
ENTER
and
ESC
at the same time.
2. Press ← and → to enter the Factory default activation screen:
3. Using ← and → do your selection. By selecting YES, you will return all previously done setting to the default
values.
Please note that by this selection, you will lose all setting done prior to this operation!
Press
ENTER
to confirm your selection.
4. By selecting NO and pressing
ENTER
or by pressing
ESC
, return to the measurement screens with no
change.
4.2 Mechanical sealing
MainsPro allows to mechanically prevent the setting changes by securing the mechanical seal in locked
position by sealing wire. The locked position is indicated at the MainsPro side-print and on the alphanumerical
display.
4.3 Signalization LEDs
There are 7 LEDs for indication of MainsPro status with the meaning indicated in the table below
In case of signaling different statuses by one LED, the following priorities apply, i.e. the higher priority signal
is provided by the LED:
Red flashing
Red
Orange flashing
Orange
Green
Note:
The U and f signalization is immediate at detection of fault conditions, regardless of the set delay for the
unit trip. After the conditions get back to the fault-free state, the LEDs may move back to green colour,
regardless of whether the unit is currently in TRIP status.
Indication of LED LOM is immediate at detection of the particular protection stage (Vector shift or ROCOF)
and fault indication remains active for the period of time, set by the setpoint Basic: Imp Len Del.
TRIP signalization is delayed according to the particular delay of the appropriate protective stage.
