Pulse Encoder Connection - ABB DCS800 Hardware Manual

Pulse encoder connection

Connecting a pulse encoder to the DCS800 converter
The connection diagram for a pulse encoder to the electronics of a DCS converter is
quite similar, if the SDCS-CON-4 or the SDCS-IOB-3 is used. The basic difference
between these 2 boards is the galvanically isolated circuit and pulse receivers via
opto coupler on the SDCS-IOB-3 board.
Power supply for incremental encoder
SDCS-CON-4 and SDCS-IOB-3 board have jumpers to select a supply voltage. V17
LED on SDCS-IOB-3 indicates supply is OK.
Encoder supply
Sense feedback connection is recommended when power supply level for
differential pulse encoder is 5 V. The wiring is shown on figure below.
DIFFERENTIAL
SINGLE-ENDED
SDCS-CON-4
supplied by PIN-4
5 V sense controlled
12 V
24 V no sense
= twisted
pair
A
A
B
B
Z
Z
+U
0V
A
A
B
B
Z
Z
+U
0V
3ADW000194R0611 DCS800 Hardware Manual f us
Hardware configuration
SDCS-CON-4
supplied by POW-1/POW-4
sense controlled
- no sense
no sense
Commissioning hint
Note:
CON-4
IOB-3
If the drive's measured direction of
ChA+
X5:1
X5:1
ChA-
X5:2 X5:2
rotation is wrong or does not
X5:3 ChB+ X5:3
correspond to measured EMF speed,
ChB-
X5:4 X5:4
ChZ+
X5:5
X5:5
the SPEEDFB fault may appear
X5:6 ChZ- X5:6
during start-up. If necessary correct
X5:7 Power source X5:10
Sense power
X5:8 X5:9
by exchanging the field connection
Sense GND
X5:9 X5:8
X5:7
X5:10
GND
If with a positive reference the
position signal 3.07 or 3.08 signal
does not look like the illustration
CON-4
IOB-3
X5:1 ChA+
X5:1
below, then tracks A &
ChA- X5:2
X5:2
exchanged with inverted signals. For
X5:3 ChB+ X5:3
X5:4 ChB- X5:4
single-ended encoders Tracks A and
ChZ+ X5:5
X5:5
B must be exchanged.
ChZ- X5:6
X5:6
Power source X5:10
X5:7
.
X5:8 X5:9
X5:9 X5:8
X5:10 X5:7
GND
IOB3x3_g.dsf
SDCS-IOB-3
sense controlled
sense controlled
65535
Forward
0
Electrical installation
59
no sense
must be