20
7 Electrical connection
►
Disconnect power. Also disconnect any independently supplied relay load
circuits.
The nominal voltage is 24 V DC. This voltage may vary between 19.2 V and
28.8 V.
In case of a single fault the supply voltage must not exceed a maximum
of 28.8 V DC. Therefore a safe separation between current supply and
transformer is necessary.
To guarantee functional reliability an output capacity of min. 2000 µF / A has
to be ensured if a power supply with diode bridge is used.
►
Connect the devices to the following table:
7.1 Wiring diagram transmitter
Pin layout
Pin
Name
Type
Description
4
2
1
3
5
1
L+ (24 V DC)
Input
Operating voltage
2
Range 0
Configuration protected area width
3
L- (0 V DC)
Operating voltage
4
Range 1
Configuration protected area width
5
FE
Functional earth
For information about available sockets/connectors see:
www.ifm.com
→ Products → Accessories
The protected area width (range) to be used is configured via range 0 and
range 1.
7.1.1 Configuration protected area width (range)
Range 0
Range 1
Description
24 V
0 V
Selection range low (0...4 m)
0 V
24 V
Selection range high (3...12 m)
0 V
0 V
24 V
24 V
No function, configuration error
For proper function of the safety light curtains / light grids pins 2 and 4 of
the transmitter have to be connected according to the indications in the
above table.
