L2275
Emax UL
45/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
13.14
Putting into service
13.14.1 Connections
For the Connections to be provided by the user, strictly follow what is indicated in this document.
This will mean that we can satisfy all the international reference Standards and guarantee perfect operation of the trip unit even under
severe environmental and electromagnetic conditions.
Give special consideration to the types of cable, the ground connections and the maximum recommended distances.
13.14.2 Test
Before putting into service, a test can be carried out using the specific “Self-test” function which can be activated on the PR112. A positive outcome
is visible and is shown on the display.
Still with the specific function (Trip test), following this it is possible carry out the test of the whole SA chain. A positive result is given by the power
circuit breaker opening.
13.14.3 Initial settings
If the PR112 is supplied directly installed in the power circuit breaker, it will be up to ABB SACE to set all the variables relative to the power circuit
breaker or to the specific application correctly (e.g. Type of power circuit breaker, CT size, …).
Vice versa, if the PR112 is supplied as a loose piece, it will be up to the user to set all the necessary parameters correctly. It should
be noted that ABB SACE defines each possible setting in a sensible way (see default parameters in par. 13.13).
Apart from this, it is absolutely indispensable for the user to modify the password and define each modifiable parameter carefully before
putting the PR112 into service.
13.14.4 Password management
Password? [0***]
To enter “edit” mode it is necessary to enter a numerical password with four figures (the default password is “0001”).
Select the value of the first figure ( between ‘0’ and ’9’ ) by means of the “up” and “down” keys and press “
↵
” to confirm the figure and pass on
to enter the next. After entering the fourth figure, checking the password entered is carried out. If the password is correct, passing from the “read”
mode to the “edit” mode takes place (the flashing cursor appears on the parameter which can be modified).
In the case of a wrong password, the following message appears
Wrong password
which lasts until the “ESC” key is pressed (or after 2 minutes).
It is possible to interrupt the operation by pressing the “ESC” key even during entry of the password.
The password is valid for a maximum of two minutes from the last key being pressed. It is immediately reset in the case of a high priority alarm
or in the case when the unit is reset.
Entering a page without modifiable parameters, the state of the protection is put on “read”. If the password is still valid, to enter “edit” mode (in
a page with modifiable parameters) simply press the “
↵
” key.
Disabling the Password
By setting the value of the password to “0000” (in the menu “Unit configuration”) the password request is disabled. Passing from “read” to “edit”
is therefore always possible.
To enter a new password, select the ”Set Password” item from the “Unit Configuration” menu
