Crate LS1-131 Especificações descarregar pdf (Página 45)

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12.5. User interface

Captions on the front of the PR121/P unit:

123

11 12

17 18

21 22

23 24

Ref. Description

1 Alarm indicator LED for protection function L

2 Pre-alarm indicator LED for protection function L

3 Alarm indicator LED for protection function S

4 Alarm indicator LED for protection function I

5 Alarm indicator LED for protection function G

6 DIP switch for fine-setting of current threshold l1

7 DIP switch for the main setting of the current threshold l1

8 DIP switch for setting current threshold l2

9 DIP switch for setting current threshold l3

10 DIP switch for setting current threshold l4

11 DIP switch for setting trip time t1

12 DIP switch for setting trip time t2 and type of curve

13 DIP switch for setting trip time t4 and type of curve

14 Position indicator for the DIP switches for the mains frequency

15 Position indicator for the DIP switches for setting the neutral protection

16 Rating plug

17 Position indicator for the DIP switches for setting the threshold I1

18 Position indicator for the DIP switches for setting the threshold I2

19 Position indicator for the DIP switches for setting the threshold I3

20 Position indicator for the DIP switches for setting the threshold I4

21 Position indicator for the DIP switches for setting the time t1

22 Position indicator for the DIP switches for setting the time t2

23 Position indicator for the DIP switches for setting the time t4

24 DIP switch for setting the mains frequency and adjusting the neutral protection

25 "i Test" test and info button

26 Test connector for connecting or testing the release using an external device (PR030/B battery unit, BT030 USB

wireless communication unit and SACE PR010/T unit)

27 Serial number of the PR121/P protection release

12.5.1. Trip Test

Before you start, it is advisable to run a test (“Trip Test”) on the whole TC chain by pressing and holding the button “i Test” for

at least 7 s. A positive outcome is shown by the circuit-breaker opening (see Watchdog). To be able to do the test, you need to

connect the PR030/B battery unit.

12.5.2. Initial settings

ABB SACE will see to applying the adhesive labels on the PR121/P for all the variables relating to the circuit-breaker (e.g. Type

of circuit-breaker, Rating Plug size, etc.).

It should be noted that ABB SACE provides a sensible definition for each possible setting (see par. 12.5.4).

WARNING: Before putting the PR121/P into service, it is nonetheless absolutely essential for the user to care-

fully define each parameter that can be changed.

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