82 Electrical installation: input / output
The inputs may 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. The overall cable shield (screen) must be
connected to the metallic shell of the D-type connector. The encoder supply on pin 12
provides 5.5
V to the encoder (500 mA maximum, less if other encoder inputs are in
use; see page 76). Maximum cable length is 30 m.
Extra incremental encoder cable connections:
6
5
8
7
15
14
13
;$
;%
1
9
2
10
3
11
12
13
7
Connect overall
shield to connector
backshells
Twisted pairs
+5.5 V out
DGND
Encoder
Feedback
CHA+
CHA-
CHB+
CHB-
CHZ+ (INDEX)
CHZ- (INDEX)
Extra incremental encoder:
Used by incremental encoder
without Halls, BiSS-B, SSI,
EnDat 2.2, or Smart Abs primary
encoder
Encoder
Feedback
Pin X8B (extra Inc. encoder without Halls) Corresponding pin on X8
1 CHA+ 6
2 CHB+ 8
3CHZ+ 15
4 (NC) (NC)
5DGND 13
6CHA- 5
7CHB- 7
8CHZ- 14
9 +5.5 V out 12
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