ABB REF 542plus, Operator'S Manual, Page: 79 / 134

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A051454 2
Fig. 19.2.1.-1 Two static binary input and output modules with and without coil
continuity check
19.2.2. Electromechanical
In the electromechanical module, digital inputs are implemented with optocouplers
and digital outputs are implemented with electromechanical relays.
REF 542plus can be equipped with electromechanical module type BIO3.
19.2.2.1. BIO3
Twelve different types of BIO3 are available depending upon the supply voltage and
other features.
Table 19.2.2.1.-1 BIO3 types and codes
BIO3 Code Description
1VCF750132R0801 Binary I/O3 - 20..90 VDC/14VDC Standard
1VCF750132R0803 Binary I/O3 - 20..90 VDC/14VDC Standard with Static
Channel
1VCF750132R0801 Binary I/O3 - 20..90 VDC/14 VDC Standard with
interconnected '-' on inputs
1VCF750132R0803 Binary I/O3 - 20..90 VDC/14 VDC with Static Channel
and with interconnected '-' on inputs
1VCF750132R0802 Binary I/O3 - 80..250 VDC/50 VDC Standard
Multifunction Protection and Switchgear Control Unit
Operator's manual
REF 542plus REF 542plus
1MRS755869