Putting Into Service And Recommendations; Nstallation; Connections; Cs And Tc Connection Check - ABB Emax E1 Installation And Service Instructions Manual

12.6. Putting into service and recommendations

12.6.1. nstallation

Circuit-breakers purchased with the relay unit assembled do not require this operation which is, however, necessary in the case
of replacement.
Comply with the following instructions to install a PR121/P:
1. With the circuit-breaker open and possibly isolated, install the protection unit on the circuit-breaker by connecting all the
cables as shown in the assembly documents.
2. Power the unit with PR030/B only.
3. If there are no other errors apart from the confi guration one, press the "i Test" button for a few seconds until all the red leds
fl ash to confi rm that installation has taken place.
4. Remove the PR030/B.
5. Power the relay from any other source (Vaux, PR030/B, PR010/T).
6. Make sure that there are no confi guration errors (check that the LEDs are on in the Alive LED ON confi guration).
7. The circuit-breaker and relay can now be put into service.
WARNING: Consult ABB about the relay replacement and installation operations if the CB is the LTT version.

12.6.2. Connections

WARNING: Strict compliance with the instructions given in this document is required for the connections at the
user's charge.
This will ensure compliance with all the international reference standards and will ensure that the relay functions
correctly even in heavy duty environmental and electromagnetic conditions. Pay particular attention to the earth
connection.

12.6.3. CS and TC connection check

WARNING: If the PR121/P has been installed by the user, remember to check (with the CB open and Vaux or
PR030/B), prior to putting the circuit-breaker into service, to make sure that the CS and TC cables have been
connected correctly. Make the correct connections if this is not the case. If all the red leds come on, it means
that there is an error in the CS and/or TC connections

12.6.4. Connection of current sensor for external neutral

WARNING: Remember to set the InN in the appropriate way if the current sensor for the external neutral conduc-
tor must be connected to a three-pole circuit-breaker.
During this phase, the circuit-breaker must be open and, if possible, isolated.

12.7. Parameter and default settings

Before the PR121/P is put into service, it is essential for the user to defi ne and carefully adjust the editable parameters to suit
his installation requirements.
ABB SACE will apply the adhesive rating plates of all the variables concerning the CB (e.g. Type of CB, Rating Plug size, etc.) so
as to provide the user with all the information he needs to defi ne the parameters.
IThe PR121/P is supplied by ABB SACE with the following preset parameters:
# Protection
1 L
2 S
3 I
4 G
5 Mains frequency
6 Neutral sel
Note:
* = Off for 3-pole versions
* = 50% for 4-pole versions
* = 100% for full-size versions
Model L6555
Threshold Time
1 In 144 s
Off 0,1 s
4 In --
Off 0,1 s
50 Hz
*
Apparatus
Doc. No
Emax
1SDH000460R0002
Scale
Page No
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