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8. Commissioning
8.1 Prerequisites
•
When supplying via terminals
B1
and
B2
, the voltage must comply with the requirements for safety low
voltage (SELV).
•
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 (115 V AC for version SK 34-82) AC
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 circuit that is to be monitored to terminals
13 14
•
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
are closed. Actuation of a sensor causes the relay
contact to open.
8.3 Connection of multiple sensors per sensor circuit
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.
Safety edges SKL:
Up to five SKL may be connected in series. The maximum total length oft the SKL shall not exceed 100 m.
The length of one SKL may be up to 25 m.
The total cable length oft the in series connected SKL must not exceed 25 m.
Safety bumper ASB:
Up to five ASB may be connected in series. The maximum total length oft the ASB shall not exceed 15 m.
The length of one ASB may be up to 3 m.
The total cable length oft the in series connected ASB must not exceed 25 m.
Safety contact mat ASK:
Up to ten ASK may be connected in series. The maximum total area shall not exceed 10 m
2
.
The maximum size of an ASK is 1350 x 2350 mm.
The total cable length oft the in series connected ASK must not exceed 25 m.
Before connecting the sensors that are connected in series, it is recommended that the resistance value of the
arrangement is to be measured. The resistance must be 8.2 kΩ ± 500 Ω when the sensor is inactive and must
not exceed 500 Ω when it is active.
ASO sensors must not be connected in parallel.
English
Sensor 1
Sensor 2
Sensor „n“
X1(Y1)
X2(Y2)
Figure 1: Wiring of multiple sensors; in this example: safety contact edge
2
2
2
2
