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SICK LSI Technical Description - 06/98
8.2 Connecting the LSI to the
controller and power
Notes:
Lay all wires and connecting cables such that they are protected
against damage.
If you are using the PLS to protect hazardous areas: make sure
that the connected controller and all other devices also have the
necessary safety integrity.
Perform a function check of the connected input controller if you
have not executed a monitoring case switchover for a lengthy
period of time. For this check you have the following options:
Specific intrusion in the active protective field after
monitoring case switchover
(look out also for simultaneous monitoring cases!)
Monitoring by means of the I/O monitor (see section 9.10).
Also refer to the connection diagram in the appendix.
Label the connectors to avoid incorrect connection.
Connecting LSI inputs:
•
Connect the inputs (A, B, C, D) of the LSI to the controller, as
shown in the connection sketch. Use 4-pin socket connector
strips (the WAGO connector supplied is an aid to wiring).
Notes:
Each input requires two signals, which must always be
inverse to each other (maximum permissible tolerance:
80 ms).
If using incremental encoders, inputs C and D are occupied
and unavailable for use.
Connecting LSI outputs:
•
Connect the outputs to the controller, as shown in the
connection sketch.
Use 4-pin socket connector strips.
Notes:
Note that in safety-related controllers for K1 to K4 you must
use relays or (auxiliary) contactors with positively-driven
contacts, taking account of appropriate protective measures
(circuitry).
Connecting LSI inputs and outputs
INPUT
A
A2
A1
B1
B2
WZ A
ERROR
OSSD A1
OSSD A2
RES A
EDM A
EDM B
RES B
WZ B
OSSD B1
OSSD B2
INPUT
C2
C1
D1
D2
A
B
B
24 V DC
K5 K6 K1 K2
K7 K3 K4
