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English
3. General information and functional description
The ELMON rail 7-76 and ELMON rail
38-726 switching units are used for evaluating safety contact mats
and for safeguarding locations where there is a risk of crushing and cutting through the use of safety contact
edges and safety bumpers.
The switching units are designed and type-approved in accordance with EN ISO 13849-1 „Safety-related parts
of control systems“ for Cat. 3 Performance Level d. For Cat. 3 compliance, the switching units have a redundant
and diverse design with two independent switching elements; of these, the semiconductor switch‘s ability
to turn off is constantly tested.
Monitoring of the standby current is made possible by an integrated terminating resistor in the sensors. If the
specified standby current is flowing, a voltage is output at the respective outputs. If the sensor is actuated or
the sensor circuit is interrupted, the voltage is switched off at the respective outputs.
The monitoring state of the sensors and the auxiliary outputs, as well as the applied operating voltage are
indicated by LEDs .
4. Proper use
The switching unit can only fulfil its safety-related task if used properly.
The switching unit is intended to be used as protection in combination with safety contact mats, safety bumpers
and safety contact edges with 8.2 kΩ resistor for standby-current monitoring.
Any uses above and beyond these uses constitute improper use. The manufacturer assumes no liability for
damages arising from improper use.
The device may only be used in special applications with the manufacturer’s express consent.
Mode
Reset
Reset
Manual
CH1
SIG
CH2
SIG
AUX1
OUT
CH1
OUT
Mode
Reset
Z1
Z
S11
S1
X
X1
Y
Y1
R
+U
R
+U
AUX Mode
Logic
+4V
0V
1
14
1
ELMON rail 7-76
AUX Mode
Logic
Logic
Mode
Reset
R
+U
R
+U
+4V
0V
AUX1
OUT
14
1
AUX
OUT
4
41
4
CH1
OUT
CH2
OUT
Mode
Reset
Reset
Manual
Z1
Z
S11
S1
CH1
SIG
X
X1
CH2
SIG
Y
Y1
ELMON rail 8-76
+U1
+U1
Summary of Contents for 1112-0010
Page 27: ...27 English Notizen Notes ...
