L2275
Emax UL
59/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
14.4.7 Default settings
The PR112/PD is supplied by ABB SACE with the following pre-defined communication parameters:
Slave Addr.
Baudrate
Parity
Addressing
255 (UNCONFIGURED)
19.200 bit/s
Even
Standard
Operating mode
Local
14.5 Putting into service
14.5.1 Connections
For the Connections to be made by the user, it is advisable to check what is indicated in par.14.3.
This means that we shall be able to satisfy all the international reference Standards and guarantee perfect operation of the trip unit even
under severe environmental and electromagnetic conditions.
Pay particular attention to the types of cable, the connections to ground and the maximum distances recommended.
In case of replacement of a PR112/P-A with a PR112/PD-A it is necessary to complete the missing cabling on the terminal box (or sliding contacts
of the power circuit breaker) with those required for the dialogue function as well as to replace the connectors which are coupled with the PR112
trip unit from the terminal box.
14.5.2 Test
Before putting into service, it is advisable to carry out some opening, closing and resetting controls of the power circuit breaker, also checking
correct indication of the status of the power circuit breaker on the display (open-closed).
It is also advisable to check the correct state of the springs (charged-discharged) as well as the position of the power circuit breaker (connected-
isolated). For further details see par. 14.4.4.3.
14.5.3 Initial settings
ABB SACE defines each setting of the communication parameters (see default parameters in par. 14.4.7). Apart from this, before putting
the PR112 into service, it is absolutely indispensable for the user to carefully define each modifiable parameter (see par.14.6.2).