Physical hardware - Arc protection - Merging unit - Motor protection - Application Manual - REM620 Motor Protection and Control - 2.0 FP1 IEC - IEC - 01.06.2023

REM620 Application Manual

The protection relay consists of two main parts: plug-in unit and case. The content depends on the ordered functionality.

Table 1. Plug-in unit and case
Main unit Slot ID Content Module ID Details
Plug- in unit - HMI DIS0009 Large (8 lines, 16 characters)
X100 Auxiliary power/BO module PSM0003 or PSM0004

48...250 V DC/100...240 V AC or 24...60 V DC

2 normally-open PO contacts

1 change-over SO contact

1 normally-open SO contact

2 double-pole PO contacts with TCS

1 dedicated internal fault output contact

X105 Empty Not equipped by default, but alternatively may be equipped as indicated below
Optional BI/O module BIO0005

Optional for configurations A and B

8 binary inputs

4 SO contacts

BIO0007

Optional for configurations A and B

8 binary inputs

3 high speed SO contacts

Optional RTD/mA module RTD0003

Optional for configurations A and B

2 generic mA inputs

6 RTD sensor inputs

X110 Alternative with BI/O or RTD/mA module BIO0005

With configuration A

8 binary inputs

4 SO contacts

RTD0003

With configuration A

2 generic mA inputs

6 RTD sensor inputs

BI/O module BIO0005

With configuration B

8 binary inputs

4 SO contacts

X115 BI/O module BIO0005

With configurations A and B

8 binary inputs

4 SO contacts

X120 AI module AIM0005 or AIM0015

With configuration A

3 phase current inputs (1/5A)

3 phase current inputs (1/5A)

1 residual current input (1/5 A or 0.2/1 A)1

Case X130 AI/BI module AIM0006

With configuration A

5 voltage inputs

4 binary inputs

Sensor input module SIM0002 or SIM0005

With configuration B

3 combi sensor inputs (three-phase current and voltage)

1 residual current input (0.2/1 A)1

X000 Optional communication module See the technical manual for details about the different types of communication modules

Rated values of the current and voltage inputs are basic setting parameters of the protection relay. The binary input thresholds are selectable within the range 16…176 V DC by adjusting the binary input setting parameters.

The connection diagrams of different hardware modules are presented in this manual.

Note: See the installation manual for more information about the case and the plug-in unit.
Table 2. Input/output overview
Default conf. Order code digit Analog channels Binary channels
5-6 7-8 CT VT Combi sensor BI BO RTD mA
A AA/AB AA 7 5 - 20 4 PO + 10 SO 6 2
AB 12 4 PO + 6SO 12 4
AC 20 4 PO + 6 SO + 3 HSO 6 2
NN 12 4 PO + 6 SO 6 2
AC/AD AA 7 5 - 28 4 PO + 14 SO - -
AB 20 4 PO + 10 SO 6 2
AC 28 4 PO + 10 SO + 3 HSO - -
NN 20 4 PO + 10 SO - -
B DA/DB AA 1 - 3 24 4 PO + 14 SO - -
AB 16 4 PO + 10 SO 6 2
AC 24 4 PO + 10 SO + 3 HSO - -
NN 16 4 PO + 10 SO - -
1 The 0.2/1 A input is normally used in applications requiring sensitive earth-fault protection and featuring core-balance current transformers