Connecting The Travelling Sensors; Commissioning And Functional Test - ASO Safety Solutions ISK 74 Manuel D'utilisation

ISK 74 Inductive Safety Relay 74 Inductive Safety Relay Inductive Safety Relay
9. Connecting the sensors
9.1 Connecting to the coil core (figure 1)
The travelling edges (SCE) are connected to the
travelling coil core.
For this purpose, the travelling SCE CLOSING move-
ment is connected to connection C of the travelling
coil core and the optional SCE OPENING movement
is connected to connection O.
The cable for the coil core is connected to the SCE
using the supplied crimp connectors or b�� directl��
soldering the wire to the connectors.
If a channel is not used, it must be connected to an 8.2 k k k W resistor.
9.2 Connecting multiple sensors per sensor circuit (figure 2)
One or more sensors can be connected to sensor input O or C. For this purpose, the individual
sensors are connected in series according to figure 2.
Up to five sensors may be connected in series, whereby the total cable length must not exceed 25 m.
The length of one sensor ma�� be up to 25 m.
Before connecting the sensors that are connected in series, it is recommended that the resistance
value of the arrangement be measured.
The resistance must be 8.2 kW ± 500 W when the SCE is inactive and must not exceed 500 W when
it is active.
ASO sensors must not be connected in parallel.
Sensor 1
O
2
C
Figure 1: Wiring of multiple sensors; in this example: safety contact edge
10. Commissioning / functional test
The gate s��stem must be tested for proper function after all of the electrical connections have been
established and the suppl�� voltage has been turned on. To do this, activate each of the safet�� contact
edges one after another and check the corresponding reactions of the switching unit.
18
Relay
C
Figure 1: Connection at the coil core
Sensor 2
2
O
Sensor „n"
2
2