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15
SICK LSI Technical Description - 06/98
Connecting incremental encoders as required:
•
Connect two incremental encoders to inputs Speed Input C
and Speed Input D.
Use 9-pin metallized sub-D plugs.
Notes:
If using incremental encoders, inputs C and D are occupied and
unavailable for you to use.
The incremental encoders must meet the following
requirements:
Type: two-channel rotary encoder with 90° phase offset
Supply voltage: 24 V DC
Outputs: push/pull
Protection IP54
Shielded cables
Max. pulse frequency 100 kHz
Make sure each incremental encoder delivers at least 50 pulses
per centimeter covered by your vehicle (for configuration of the
incremental sensors see section 9.7 and the calculation
example in the appendix).
•
Connect the shielding to the strain relief, as shown in the
diagram. Follow the pin assignment.
Note:
You will find various examples of connection and configuration
options for the LSI in section 11.1.
Connecting incremental encoders
Pin assignment
1 +24V DC
2 +24V DC
3 GND
4 GND
5 n.c.
6 IN 0°
7 IN 90°
8 GND
9 n.c.
LSI
To incremental encoders
1
9
Connect shielding
to strain relief
Shielding and pin assignment
SPEED INPUT
INPUT
OR
C2
C1
D1
D2
C
D
SPEED INPUT
Must remain
open !
Incremental encoders