1MRS750527-MUM

7.

7.1.

Feeder Terminal

Technical Reference Manual, General

Ordering Information

REF 54_

Order number

The following is to be specified when ordering REF 54_ feeder terminals:

• Order number (see Fig. 7.1.-1 below)

• Display language combination (for example English-German)

• Quantity of feeder terminals

Each REF 54_ feeder terminal has a specific order number that identifies the feeder

terminal type as well as the hardware and the software as described in Fig. 7.1.-1

below. The order number is labeled on the marking strip on the front panel of the feeder terminal delivered, for example Order No: REF543KC127AAAA.

REF54_KC127AAAA

A = fixed display, B = external display module

A = without sensor, B = with sensor

Reserved for future use

Auxiliary voltage range of a power supply module and voltage range of digital inputs

A: power supply: PS1/240 V (Medium) or PS2/240 V

Ur = 110/120/220/240 V ac;

110/125/220 V dc digital inputs: Ur = 110/125/220 V dc

B: power supply: PS1/240 V (High) or PS2/240 V

Ur = 110/120/220/240 V ac;

110/125/220 V dc digital inputs: Ur = 220 V dc

C: power supply: PS1/48 V (Low) or PS2/48 V

Ur = 24/48/60 V dc digital inputs: Ur = 24/48/60/110/125/220 V dc

Hardware number: 115, 118, 127, 129, 133

Functionality level: C = Control, B = Basic, M = Multi

Software revision: A, B, C, D, E, F, G, H, K

Feeder terminal type: REF 541, REF 543, REF 545

A050601

Fig. 7.1.-1 Order number of REF 54_

The functionality level determines the extent of the selection of function blocks available for the feeder terminal. For more detailed information on the separate function blocks included in each selection, please consult your relay supplier.

Functionality level Selection of function blocks

C (Control)

B (Basic)

M (Multi)

All control, condition monitoring and measurement functions

All control, condition monitoring and measurement functions, basic protection functions

All control, condition monitoring, measurement and protection functions

In addition, optional functions, such as fault locator, power quality, capacitor bank protection and power factor control functions are available.

Terminals can optionally be ordered with an ANSI front panel.

103

REF 54_

7.2.

7.3.

Feeder Terminal

1MRS750527-MUM

Technical Reference Manual, General

The display language combination (see the table below) is identified by a three-digit suffix in the software number labeled on the front panel of the feeder terminal, for example Software No: 1MRS110028-0__.

Suffix Language combination

001

002

003

007

008

009

010

01

2

English - German

English - Swedish

English - Finnish

English - Portuguese

English - Polish

English - Russian

English - Spanish

English - Czech

The REF 541, REF 543 and REF 545 feeder terminals differ from each other as to the number of digital inputs and outputs as follows.

Number of inputs/outputs

Digital inputs

Trip circuit supervision inputs

Power outputs (NO single-pole)

Power outputs (NO double-pole)

Signal outputs (NO)

Signal outputs (NO/NC)

Self-supervision outputs

REF 541

5

1

5

2

15

2

0

REF 543

5

1

9

2

25

2

2

REF 545

11

4

8

1

34

2

3

Hardware versions of REF 541, REF 543 and REF 545

For the number of digital inputs and outputs of REF 54_ feeder terminals, refer to

section “Order number” above. The number of matching transformers, sensor inputs

and analog inputs and outputs, and the auxiliary voltage range vary between the different hardware versions of REF 54_. Moreover, REF 541 and REF 543 can be supplied with an RTD/analog module. For more detailed information about the

hardware of REF 54_, refer to Section “Hardware versions” on page 13.

Software configuration

Each REF 54_ feeder terminal allows different software configurations based on

separate functions (refer to Section “Functions of the feeder terminal” on page 21).

Functions included in the selected functionality level (refer to Section “Ordering

Information” on page 103) can be activated within the scope of the I/O connections

and considering the total CPU load of the functions.

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