Local Hmi - ABB RELION REX640 Technical Manual

Protection and control

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Table of Contents

1MRS759142 F

PO = Power Output

SPO = Static Power Output

The relay has a nonvolatile memory which does not need any periodical

maintenance. The nonvolatile memory stores all events, recordings and logs to a

memory which retains data if the relay loses its auxiliary supply.

Local HMI

The LHMI is used for setting, monitoring and controlling the protection relay and

the related process. It comprises a 7-inch color screen with capacitive touch sensing

and a Home button at the bottom of the LHMI.

Technical Manual

1 × RJ-45 (LHMI port) + 2 × LC + 1 × LD-SFP + 1 × RS-485/IRIG-B + 1 × FO

14 × BI + 8 × SO

6 × SPO + 2 × SPO (TCS) + 9 × BI

10 × RTD channels + 2 × mA channels (input/output)

3 × RTD channels + 6 × mA channels (input/output) + 12 x BI

4 × CT + 1 × CT (sensitive, for residual current only) + 5 × VT

6 × CT + 4 × VT

3 × combi sensor inputs (RJ-45) + 1 × CT (sensitive, for residual current

only) + 1 × VT

3 × combi sensor inputs (RJ-45) + 1 × CT (sensitive, for residual current

only) + 1 × VT

24...60 VDC, 3 × PO (TCS) + 2 × PO + 3 × SO + 2 × SSO

48...250 VDC / 100...240 VAC, 3 × PO (TCS) + 2 × PO + 3 × SO + 2 × SSO

110/125 VDC (77...150 VDC), 3 × PO (TCS) + 2 × PO + 3 × SO + 2 × SSO

The LHMI must be paired with the protection relay to enable all the

functionalities in it. See the operation manual for the pairing procedure.

The LHMI is an accessory for the relay which is fully operational even

without the LHMI.

SO = Signal Output

SSO = Static Signal Output

REX640 overview