ABB MicroFlex e150, Руководство пользователя

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86 Electrical installation: input / output

Extra incremental encoder interface
The extra incremental encoder becomes available when using a digital encoder type
that does not require the Sin / Cos inputs (BiSS, SSI, EnDat 2.2, Smart Abs). In Mint,
the main digital encoder source remains as encoder 0, and the extra incremental
encoder is encoder 2. Note that encoder 1 is the input formed by digital inputs DIN1
and DIN2; see
Special functions on inputs DIN1, DIN2
on page
67
.
The 5 V encoder inputs (CHA, CHB and CHZ) can be used as differential inputs
(recommended for improved noise immunity) or single ended inputs. When used as
single ended inputs, leave the CHA-, CHB- and CHZ- pins unconnected.
Extra encoder input circuit - channel A shown:
+5V
MicroFlex e 150
CHA+
CHA-
6
5
13 DGND
to CPU
MAX3096
Differential
line receiver