Commissioning; Prerequisites; Electrical Connection; Connection Of Multiple Sensors Per Sensor Circuit - ASO Safety Solutions SK 35 Manuel D'utilisation

8. Commissioning

8.1 Prerequisites

• When supplying via terminals B1 and B2, the voltage must comply with the requirements for
Protective Extra Low Voltage (PELV).
• Cables installed outdoors or outside of the switching cabinet must be protected appropriately.

8.2 Electrical connection

• Connect 24 V DC or AC supply voltage to terminals B1 B2 or 230 V AC supply voltage to terminals
A1 A2
• Connect sensor to terminals X1 X2 and Y1 Y2; connect 8.2 kΩ resistor to any unused inputs.
• Connect the control circuits to be monitored to terminals 13 14 and 23 24.
• Connect the test signal supplied by the primary control to terminals T1 T2 and select the waveform
via DIP slide switch S1.
• For error lock with manual reset: connect release button for manual reset to terminals Z1 Z2 and
select the function via DIP slide switch S2.
The supply voltage at terminals B1 B2 is not galvanically isolated from the
sensor inputs.
Following successful commissioning, relay outputs 13 14 and 23 24 are closed. The actuation of a
sensor results in the opening of the respective relay contact 13 14 or 23 24.

8.3 Connection of multiple sensors per sensor circuit

ASO sensors must not be connected in parallel.
One or more sensors can be connected to sensor inputs X1 X2 or Y1 Y2. For this purpose, the
individual sensors are connected in series according to figure 1.
Up to five sensors may be connected in series, whereby the total cable length must not exceed
25 m.
Before connecting the sensors that are connected in series, it is recommended that the resistance
value of the arrangement be measured.
Sensor 1
X1
2
X2
Figure 1: Wiring of multiple sensors; in this example: safety contact edge
Sensor 2
2
Sensor „n"
2
2
19