Electrical connection
Leuze electronic
DDLS 548i
39
5.2
POWER (supply voltage / switching input and switching output)
5-pin, M12 plug (A-coded) for connecting to POWER.
2
3
1
4
5
FE
Fig. 5.2:
Pin assignments for POWER connection
Tab. 5.1:
POWER pin assignments
Pin
Designation
Assignment
1
VIN
Positive supply v18 … +30 VDC
2
IO1
Switching output (intensity/SIGNAL QUALITY)
Voltage:
• +18 … +30 VDC: received signal level/SIGNAL QUALITY ok
• 0 VDC: intensity warning: received signal level/SIGNAL QUAL-
ITY not sufficient
3
GND
Negative supply voltage 0 VDC
4
IO2
Switching input (transmitter shutdown)
Voltage:
• +18 … +30 VDC: transmitter not active
• 0 VDC: transmitter active
5
FE
Functional earth
(Thread for M12
connector plug)
FE
Connection cable shield
The shield of the connection cable is on the thread of the M12 con-
nector plug.
The thread of the M12 connector plug is part of the metallic hous-
ing. The housing is at the potential of the functional earth via pin 5.
Connection cables: see chapter 13.2 "Cables accessories"
Switching input/output
The device is equipped with a switching output IO1 and a switching input IO2.
• Using the switching input, the transmitter (pin 4) can be activated and deactivated. On deactivation, the
optical link is interrupted (OLK LED).
NOTICE
Deactivation of the transmitter can be used during a corridor change to avoid interference ef-
fects, e.g., with other optical sensors.
• If the received signal level drops (SIGNAL QUALITY), the intensity warning is activated via the switch-
ing output.
The intensity warning is activated as soon as no green LED illuminates on the SIGNAL QUALITY indi-
cator.
NOTICE
Data transmission remains active until the last orange LED of the SIGNAL QUALITY indicator
switches off. Data transmission is then deactivated.
The intensity warning remains active even after the last orange LED of the SIGNAL QUALITY
indicator switches off.