ABB Relion 620 Series - Outputs; Outputs for Tripping and Controlling; Outputs for Signaling

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1MAC308145-MB E Section 5

Relay physical connections

RER620 77

Application Manual

5.2 Outputs

5.2.1 Outputs for tripping and controlling

Output contacts PO1, PO2, PO3 and PO4 are heavy-duty trip contacts capable of

controlling most circuit breakers. They can be used for any such application. However,

recloser closing and opening signals are issued from UPD module as described in section

5.2.4.

Table 18: Output contacts

5.2.2 Outputs for signaling

Output contacts SO1 and SO2 in slot X100 or SO1, SO2, SO3 and SO4 in slot X105/X110

(optional) can be used for signaling on pickup and tripping of the relay. On delivery from

the factory, the pickup and alarm signals from all the protection stages are routed to

signaling outputs.

Table 19: Output contacts X100-10…14

Terminal Description

X100-6 PO1, NO

X100-7 PO1, NO

X100-8 PO2, NO

X100-9 PO2, NO

X100-15 PO3, NO (TCS resistor)

X100-16 PO3, NO

X100-17 PO3, NO

X100-18 PO3 (TCS1 input), NO

X100-19 PO3 (TCS1 input), NO

X100-20 PO4, NO (TCS resistor)

X100-21 PO4, NO

X100-22 PO4, NO

X100-23 PO4 (TCS1 input), NO

X100-24 PO4 (TCS1 input), NO

Terminal Description

X100-10 SO1, common

X100-11 SO1, NC

X100-12 SO1, NO

X100-13 SO2, COM

X100-14 SO2, NO

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