16
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 incl. 5% residual ripple. SELV / PELV power supplies are to be used.
In case of a single fault the operating 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 units as indicated in the following tables:
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.
Configuration protected area width (range)
Range 0
Range 1
Description
24 V
0 V
Selection range low (8...30 m)
0 V
24 V
Selection range high (18...60 m)
0 V
0 V
Transmitter in test function (→ 8.4 Test function)
24 V
24 V
No function, configuration error
For proper function of the safety light grids pins 2 and 4 of the transmitter
have to be connected according to the indications in the above table.
If the long range (18...60 m) is selected, the orange LED (RANGE) will light
on the transmitter. (→ 9 Operating and display elements)
