ABB RELION 670 Series Technical Manual page 887

1MRK 502 066-UUS B
The Gray code conversion above is not complete and therefore the conversion from decimal
numbers to Gray code is given below.
Table 511: Gray code conversion
IEC06000523 V1 EN-US
Via a mA input signal
Any of the six inputs on the mA card (MIM) can be used for the purpose of tap changer position
reading connected to the Tap changer control and supervision, 6 binary inputs TCMYLTC (84) or 32
binary inputs TCLYLTC (84).
Technical manual
Section 14
Control
SEMOD159170-35 v3
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