GE AV-300i, User Manual, Page: 77 / 296

AV-300i Version 2 User’s Guide
—————— Function Description ——————
Ch.1
77
Exp digital out cfg
DO 0X inversion
It inverts the output signal
……… ………
DO 7X inversion
It inverts the output signal
Exp digital out mon
DO 76543210
Monitor for all Expanded outputs.
The output logical state is displayed under each number.
Exp digital outs en
Exp dig out en
Enabling of the expanded digital outputs
1.6.5.1 Configuration of the OK Relay (Terminals 80, 82)
DO 0 src parameter defines the conditions that the relay contacts will close.
Drive OK The contact closes when the drive is powered up with no failure alarms.
Drive Ready The contact closes when the following conditions are fulfilled:
- The drive is powered up
- There are no failure alarms present
- The drive is enabled. The enable operation is defined by parameters [En/disable mode]
& [Commands sel]
- The magnetizing procedure has been completed (Drive is ready to deliver torque).
N
OTE
!
The contact opens immediately on a drive failure, or when the drive is disabled.
1.6.6 Word Composing and Decomposing Block (Bits->Word & Word->Bits)
Sometimes it is necessary to put some bits together in order to transfer some information along the communica-
tion channel. The Word Composing Block, Bit->Word, is useful in this case to communicate, for example, with
the DGFC: it is possible to compose a word made of Drive ready, Drive ok, Ref is zero, Speed is zero, by
communicating on a single word.
The opposite operation is necessary when the digital words written, for example, by the DGFC have to be read.
The Word Decomposing Block, Word->Bit, allows to set some signals on a digital word; each signal composing
the word, on the Block input, can be combined with an output channel.
The Bits->Wordn Block has 16 inputs, where each of them can be connected to a signal; the output of the
Word compn Block contains the packed input bits.
The Wordn->Bits Block has an input word and 16 Bx Wn decomp output bits.
- Wordn and Wn, where n is 0 or 1.
- Bx, where x is a bit from 0 to 15.
Each function has two blocks: Word 0 and Word 1 – W0 decomp and W1 decomp.
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