Incremental Encoders Without Inverted Signals (Asymmetrical Circuitry) - Addi-Data APCI-8001 Commissioning Manual

CM / C M
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5.2.6.4 Incremental encoders without inverted signals (asymmetrical circuitry)

It is also possible to process incremental encoders without inverted pulse trains. However, these should only
be used in environments that are not subject to severe electromagnetic interference, e.g. in laboratory
applications. Please also ensure that the encoder cable is only a few metres long, especially for high pulse
frequencies.
Table 5-1: Configuration of the incremental encoders for symmetrical and asymmetrical operating
modes
Axis channel Signal source
1 CHA1-
CHB1-
NDX1-
2 CHA2-
CHB2-
NDX2-
3 CHA3-
CHB3-
NDX3-
Note: The solder jumpers listed in the table are located on the top right-hand corner of the solder side of the
APCI-8001 / APCI-8008 board.
Component mounting diagram (soldered side) of the APCI-8001
ANUAL
Solder jumper
J8 (8000)
J10 (8008)
J11 (8000)
J9 (8008)
J15 (8000)
J8 (8008)
J9 (8000)
J13 (8008)
J12 (8000)
J12 (8008)
J18 (8000)
J11 (8008)
J7 (8000)
J17 (8008)
J10 (8000)
J16 (8008)
J14 (8000)
J14 (8008)
Asymmetrical
Bridged
Do not connect pin 4 / X1
Bridged
Do not connect pin 6 / X1
Bridged
Do not connect pin 8 / X1
Bridged
Do not connect pin 21 / X1
Bridged
Do not connect pin 23 / X1
Bridged
Do not connect pin 25 / X1
Bridged
Do not connect pin 37 / X1
Bridged
Do not connect pin 39 / X1
Bridged
Do not connect pin 41 / X1
Symmetrical
Unbridged
Connect pin 4 / X1
Unbridged
Connect pin 6 / X1
Unbridged
Connect pin 8 / X1
Unbridged
Connect pin 21 / X1
Unbridged
Connect pin 23 / X1
Unbridged
Connect pin 25 / X1
Unbridged
Connect pin 37 / X1
Unbridged
Connect pin 39 / X1
Unbridged
Connect pin 41 / X1
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