Functions
18
SOLID-4
Leuze electronic
DEUTSCH
E
NGLISH
FRANÇAIS
IT
A
LIANO
ESPAÑOL
N
EDERLANDS
4
Functions
4.1
Selectable functions of the SD4T Transmitter
4.1.1
Transmission channel
The infrared beams are modulated with specially shaped pulse bundles so that they are
distinct from ambient light and undisturbed operation is consequently ensured. Welding
sparks or warning flash lights from passing forklifts do not having any effect on the
protective field.
If two protective fields are located directly next to each other for two adjacent machines,
measures must, however, be implemented so that the optical protective devices do not
affect each other.
Both transmitters should first be set up "back to back" so that the beams run in opposite
directions. It is consequently impossible for them to affect each other.
Another possible way to suppress mutual influences is to switch one of the two protective
devices from transmission channel 1 to 2, thereby switching them to differently formed
pulse bundles. This solution should be considered when more than two optical protective
devices must be arranged next to each other.
The change from transmission channel 1 to 2 must be made both on the transmitter and
the receiver of the optical protective device in question. You will find more detailed
information in Chapter 7.
4.2
Selectable functions of the SD4R-E Receiver
4.2.1
Transmission channel
If the corresponding transmitter is switched to transmission channel 2, the receiver must
also be set to transmission channel 2. For this, see also Chapter 7.
a = AOPD "A" transmission channel 1
b = AOPD "B" transmission channel 2, not affected by AOPD "A"
Fig. 4.1-1:
Transmission channel selection
a
b
