Installation Manual for SMX Modules - OEM Automatic AB

Installation Manual
2. Single-channel sensor with cross-shorting test
DI1
DI2
DI3
DI4
.
.
.
DI13
DI14
P1
P2
X14
X12
P1
P2
L+
L-
Fig.: Single-channel sensor with cross-shorting test
When using a single-channel sensor with clock one output is connected to the clock output
P1 or P2. The clock must subsequently be assigned to the SMX.
The use of a single-channel sensor with clock detects:
short-circuit to supply voltage DC 24 V
short-circuit to DC 0 V
cable interruption (current interruption is secure state!)
However, be cautious in case of a cable short between the two sensor connections, because
this is not detected! A short-circuit between P1 and DI1 is also not detected.
PI d acc. to EN ISO 13849-1 can be achieved by using a suitable switching element and with
cautious wiring of the sensor.
Note:
Pl e acc. to EN ISO 13849-1 is achieved if the short-circuit between DI1 and P1 and the
short-circuit between the sensor connections can be excluded. Here must take care that the
in a fault scenario the switch must be positively opening. The sensor must additionally be
triggered in regular intervals and the safety function requested. Fault exclusions can be achieved
in accordance with EN ISO 13849-2 table D8.
HB-37350-810-01-10E-EN SMX installation manual.doc Page 23 of 23