Specifications

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Doc. no.
Model
Apparatus
Scale
Page No
1SDH000460R0002
L5439
13.3.6. Password management
Specify a password? [0***]
To enter “EDIT” mode it is necessary to enter a four-figure numerical password. The values attributable to the password go from
0000 to 9999. For the default password see par.13.4.4.
Select the value of the first figure ( between ‘0’ and ‘9’ ) by means of the  and  and press  to confirm the figure and then move
on to enter the next one.
After entering the fourth figure, check the password you have entered. If the password is correct, you go from the “READ” state
to the “EDIT” state.
If the password is wrong, the message
Wrong password
appears and remains until the ESC (key is pressed (or until an interval of 5 seconds has elapsed).
It is also possible to interrupt the password entry procedure by pressing th ESC key.
The password is valid for a maximum of two minutes from the last time a key was pressed.
Disabling the Password.
By setting the value of the password to [0000] (on the “Unit configuration” menu) the password prompt is disabled. It is therefore
always possible to switch from “READ” to “EDIT”.
To enter a new password, select the “New Password” item on the “Settings/System” menu.
13.3.7. Replacing an electronic release
13.3.7.1. Installation
To complete the procedure for installing a PR122/P unit, follow the steps below:
1. With the circuit-breaker open and preferably isolated, install the protection unit on the circuit-breaker
2. Power the unit ONLY from the PR030/B
3. If there are no other errors, the display will show the message
Configuration (configuration error) accompanied by the
yellow LED coming on permanently (warning)
4. Enter the unit’s “Settings” menu
5. Select “Circuit-breaker”
6. Select “Unit installation”
7. Input the password
8. Select “Install” and press “ENTER”
9. When the red led flashes on and off and the message Installation (installation error) is displayed, remove the
PR030/B
10. Power the relay from any other source
Check for the absence of configuration errors.
13.3.7.2. Uninstalling
To complete the procedure for uninstalling a PR122/P unit, follow the steps below:
1. With the circuit-breaker open and/or isolated power the unit from the PR030/B
2. Enter the unit’s “Settings” menu
3. Select “Circuit-breaker”
4. Select “Unit installation”
5. Input the password
6. Select “Uninstall” and press “ENTER”
7. Remove the PR030/B module
8. Remove the PR122/P unit from the circuit-breaker
9. The remove the TC connector, proceed as indicated in the figure alongside.
It is not strictly necessary to complete the uninstalling procedure, but this enables the pa-
rameters relating to the circuit-breaker, such as contact wear and others, otherwise these
data would be lost. The data in question are then transmitted to the new PR122/P unit
installed on the same circuit-breaker.