ABB DCS880 series - Pulse Encoder Connection Principles

Electrical installation
70
3ADW000462R0401 DCS880 Hardware manual e d
Pulse encoder connection principles
Two different encoder connections are available.
1. Differential connection; only pulse encoders generating voltage signals can be used.
2. Single-ended (push pull) connection; only pulse encoders generating voltage signals can be used.
Pulse encoder connection principles:
In case of single ended encoders jumpers J4A ... J4C have to be set to a neutral position according
to the table below.
To get a threshold lower than 5 V each terminal XENC:1, 3 and 5 must be connected via a resistor R
to GND.
1k0 4k7
1k0 4k7
+5V
121
W
100 nF
10k
+5V
0V
+5V or +24V
3
2
1
J4A
R
2k2
SS_880_005_encoder_b.ai
XENC:1
XENC:2
XENC:7
XENC:8
ENCODER CHANNEL A
Single ended
open collector
SDCS-CON-H01 ENCODER INPUT A
2k2
1k0 4k7
1k0 4k7
+5V
121
W
100 nF
10k
+5V
0V
+5V or +24V
XENC:1
XENC:2
XENC:7
XENC:8
3
2
1
J4A
R
SS_880_005_encoder_b.ai
ENCODER CHANNEL A
Single ended
push pull
SDCS-CON-H01 ENCODER INPUT A
Jumper settings for single ended encoders connected to SDCS-CON-H01
Jumper SDCS-CON-H01
J4A
J4B
J4C
2 - 3
5 - 6
8 - 9
2 - 3
5 - 6
8 - 9
Single ended
J4D 5 V: 10 - 11 24 V: 11 - 12 Voltage source