Connection Of 3 Sace Pr021/K Units With Sace Pr113/P - ABB SACE PR021/K Manual

Signalling unit

Table of Contents

5.6.2.2.

Latch mode (see par. 4.5.2)

The dip-switches are to be set as follows: Dip-switch no. 5 = A, Dip-switch no. 11 = ON.

Electric

contact

A = L protection alarm (overload)

K51/1

B = L function prealarm (overload)

S protection alarm (selective short-circuit)

K51/2

I protection trip (instantaneous short-circuit)

K51/3

A = G protection alarm (earth fault)

K51/4

B = Minimum voltage coil (MT) energized

A = Communication problems on the local bus (bus KO)

K51/5

B = Overtemperature prealarm

LC1 load control

K51/6

Protection release TRIP alarm

K51/7

LC2 load control

K51/8

5.6.2.3.

User mode (see par. 4.5.3)

The dip-switches are to be set as follows: Dip-switch no. 5 = B, Dip-switch no. 11 = ignored.

Electric

contact

All contacts (K51/1...K51/8) are associated exclusively with the function selected on the PR113 unit by the user, except

the K51/5 contact, which indicates the "Communication problems on the local bus (bus KO)" function.

5.6.3. Connection of 3 SACE PR021/K units with SACE PR113/P

Up to a maximum of three SACE PR021/K units can be connected to the PR113/P unit (see par. 5.14.4).

The only condition is that one PR021/K unit is to be configured as Master, while the other(s) is/are configured as

Slave(s).

This allows activating up to (7 + 8 + 3 =) 18 contacts without potential (K51/1, K51/2,...), plus 6 replicated contacts (see

Emax user manual).

ABB SACE

Event that caused closing of the relay