Initial Settings; Password Management; Checking The Direction Of Power Transmission; Replacing An Electronic Release - ABB Emax DC L3447 Installation And Service Instructions Manual

13.3.5 Initial settings

If the PR123/DC is supplied ready installed in the circuit-breaker, it is up to ABB SACE to set all the variables referring to the circuit-breaker or
the specific application correctly (e.g. type of circuit-breaker, Rating Plug size...). When the PR120/V module is installed, user must properly set
the rated voltage.
Vice versa, if the PR123/DC is supplied separately, it will be up to the user to set all the necessary parameters correctly.
Note that ABB SACE defines each possible setting according the content of the paragraph on the default parameters (see par. 13.4.4).
Apart from this, it is absolutely indispensable for the user to modify the password and carefully define each modifiable
parameter, before putting the PR123/DC into service.

13.3.6 Password management

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 ↓ keys 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
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 the ESC key.
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 Checking the direction of power transmission

To make sure the settings is right for the direction of power transmission, disable the RP protection (or enable the trip lock)
and, with the circuit breaker closed and the minimum loads powered, make sure the power measurement on the release's
display is consistent with the configuration of the system. If it is not consistent, change the "Power Flow" parameter (see
section 14.1.4.2)

13.3.8 Replacing an electronic release

13.3.8.1

Installation

To complete the procedure for installing a PR123/DC 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
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
10. Power the relay from any other source
11. Check for the absence of configuration errors.
13.3.8.2

Uninstalling

To complete the procedure for uninstalling a PR123/DC 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
8. Remove the PR123/DC 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 parameters relating to the circuit-breaker, such as contact
wear and others, to be saved, otherwise these data would be lost. The data in question are then transmitted to the new PR123/DC unit installed
on the same circuit-breaker.
L3447
Model
L3728
Specify a password? [0***]
Wrong password
Configuration (configuration error) accompanied by the yellow
Installation (installation error) is displayed, remove the PR030/B
Apparatus
Doc. No.
Emax DC
1SDH000635R0002
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