Rate can be set on the values 9600 and 19200 bit/s. The physical protocol provides for the options: (8,E,1), (8,0,1), (8,N,2), (8,N,1). The addressing

can be selected as standard Modbus or ABB. For further information on the PR120/D-M communication module, see paragraph 15.2 in this manual.

13.5.4.4.3 PR120/K - SIGNALLING module

For a thorough examination of the signalling module, refer to the corresponding section of the module, paragraph 15.3.

13.5.4.4.4

PR120/D WL-COM module

This module is for wireless communication based on the Bluetooth standard between the PR122/P protection release and a hand-held PC (PDA)

or a laptop with a Bluetooth port. For further information, see the description of the module in paragraph 15.4.

13.5.4.4.5 Settings for the Local Bus unit

If the PR021/K unit is connected, you need to enable the local bus by selecting present.

1 3 . 5 . 5 Test Menu

Access to the Test menu is password protected.

Measures

Settings

Test

Device test

The menu shows the state of the CB, in the dialog module (COM module) the state of the springs and the position of the CB, and in this submenu

you can make the CB open or close.

Using the "Trip Test" function lets you view the disabling/enabling of the Trip. If it is enabled, the circuit-breaker is opened. The function is only

available with a busbar current of nil (use Vaux, PR030/B or PR010/T).

On the page, only with Vaux, you can also see the state of the circuitbreaker "STATUS", and thus make sure that the input is correctly wired.

The surfing path is summarized in the following table:

13.5.5.1

Test Menu table

Parameter / Function

CB status

Auto Test

Trip Test

PR120/D-M

State of springs

Module