Etel DSC Series Hardware Manual

ETEL Doc.- Hardware Manual # DSCDP / Ver G / 6/1/11
DSCDP Hardware Manual 23
3.1 Encoder connectors
3.1.1 Connectors JC5 and JC6: Position encoders
Caution: The encoder cable(s) must be insulated (no contact) from the power and the mains.
The inputs and outputs of this connector are not galvanically insulated from the GND.
The inputs and outputs must be connected to an Extra Low Voltage circuit only
(SELV).
Caution: The encoder connectors must be handled in an ESD protected environment, only.
Remark: The encoder cable(s) connected to the DSCDP must be shielded (see §3.7.1
).
Depending on the version of the DSCDP rack format, two types of encoder connector can be found:
• a D-Sub, 9 pins, connector on the DSCDP1xx-xxx where an incremental analog encoder 1 Vptp or a TTL
encoder can be connected.
• a D-Sub 15 pins high density connector on the DSCDP3xx-xxx and later where an incremental analog
encoder 1 Vptp, or an analog absolute encoder (EnDat 2.1) or a TTL encoder can be connected.
The DSCDP housed format includes only a D-Sub 15 pins high density encoder connector.
Remark: JC5 is used to connect the encoder of motor 1 and JC6 for the one of motor 2.
3.1.1.1 Incremental analog encoder (1 Vptp)
The incremental analog encoder has 1Vptp signals with a load resistor R
0
=120Ω. It determines the motor
position thanks to two sinusoidal signals with a 90° phase-shift (sine and cosine). A third signal, the index (also
called reference mark) gives the absolute motor position:
The D-Sub 9 pins connector is only available on the DSCDP1xx-xxx.
Remark:
The +5VDC encoder supply output is protected by the fuse F3 (1A) on JC5 and JC6.
D-SUB, 9 pins, female
ANALOG ENCODER Pin # Signal Function Interface
1 SIN - Sine - signal input
2 GND Encoder supply output (0V)
3 COS - Cosine - signal input
4 GND Encoder supply output (0V)
5 IDX - Index - signal input
6 SIN + Sine + signal input
7 +5VDC Encoder supply output (protected by F3 1A)
8 COS + Cosine + signal input
9 IDX + Index + signal input
Position
Position
Position
Sine
Cosine
Index
+0.5V
+0.5V
-0.5V
-0.5V
0V
0V
Reference mark acquisition zone
ANALOG ENCODER
JC5 & JC6
5
1
6
9
COS+
SIN+
IDX+
COS-
SIN-
IDX-
R
R
R
0
C
C
DSCDP
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Etel DSC Series Specifications

General

Brand	Etel
Model	DSC Series
Category	Controller
Language	English