Hitachi Relion 670 Series Applications Manual page 272
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Also See for Relion 670 Series:
- Applications manual (354 pages) ,
- Commissioning manual (284 pages) ,
- Product manual (192 pages)
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Section 12
Control
Via coded binary (Binary), binary coded decimal (BCD) signals or Gray coded binary
signals
The Tap changer control and supervision, (TCMYLTC or TCLYLTC) decodes binary data from up to
six binary inputs to an integer value. The input pattern may be decoded either as BIN, BCD or GRAY
format depending on the setting of the parameter CodeType.
It is also possible to use even parity check of the input binary signal. Whether the parity check shall
be used or not is set with the setting parameter UseParity.
The input BIERR on (TCMYLTC or TCLYLTC) can be used as supervisory input for indication of any
external error ( Binary Input Module) in the system for reading of tap changer position. Likewise, the
input OUTERR can be used as a supervisory of the Binary Input Module.
The truth table (see table 30) shows the conversion for Binary, Binary Coded Decimal, and Gray
coded signals.
Table 30:
IEC06000522 V1 EN-US
266
Binary, BCD and Gray conversion
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1MRK506375-UEN Rev. N
SEMOD159170-24 v5
Railway application RER670
Application manual
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