ABB Relion 670 Series RES670, Technical Manual

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Maximum 72 outputs may be activated simultaneously with influencing
factors within nominal range. After 6 ms an additional 24 outputs may be
activated. The activation time for the 96 outputs must not exceed 200 ms.
48 outputs can be activated during 1 s. Continued activation is possible
with respect to current consumption but after 5 minutes the temperature
rise will adversely affect the hardware life. Maximum two relays per
BOM/IOM/SOM should be activated continuously due to power
dissipation.
21.2.9 Static binary output module (SOM)
21.2.9.1 Introduction
The static binary output module has six fast static outputs and six change over output
relays for use in applications with high speed requirements.
21.2.9.2 Design
The Static output module (SOM) have 6 normally open (NO) static outputs and 6
electromechanical relay outputs with change over contacts.
The SOM consists mainly of:
• An MCU
• A CAN-driver
• 6 static relays outputs
• 6 electromechanical relay outputs
• A DC/DC converter
• Connectors interfacing
•
CAN-bus to backplane CBM
• IO-connectors to binary outputs (2 pcs.)
The following parts are supervised:
• Interruption in relay coil
• Short circuit of relay coil
• Driver failure
Section 21
1MRK 511 365-UUS A
IED hardware
780 Phasor measurement unit RES670 2.1 ANSI
Technical manual