Leuze electronic DDLS 508 Operating Instructions Manual page 35

Table 5.1:
Pin
1
2
3
4
5
(Thread for M12
connector plug)
Connection cables: see table 11.2
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).
Deactivation of the transmitter can be used during a corridor change to avoid interference effects,
e.g., with other optical sensors.
• If the received signal level drops (SIGNAL QUALITY), the intensity warning is activated via the swit -
ching output.
The intensity warning is activated as soon as no green LED illuminates on the SIGNAL QUALITY
indicator.
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.
NOTICE
Maximum input current
 The maximum input current of the switching input is 8 mA.
NOTICE
Maximum loading of the switching output
 Do not load the switching output with more than 60 mA at +18 ... +30 VDC.
The switching output is protected against short-circuit, overcurrent, overvoltage, excess temperature
and transients.
Leuze electronic
POWER pin assignments
Designation
VIN
IO1
GND
IO2
FE
FE
Assignment
Positive supply voltage +18 ... +30 VDC
Switching output (intensity/SIGNAL QUALITY)
Voltage:
• +18 ... +30 VDC: received signal level/
SIGNAL QUALITY ok
• 0 VDC: intensity warning: received signal level/
SIGNAL QUALITY not sufficient
Negative supply voltage 0 VDC
Switching input (transmitter shutdown)
Voltage:
• +18 ... +30 VDC: transmitter not active
• 0 VDC: transmitter active
Functional earth
Connection cable shield
The shield of the connection cable is on the thread of
the M12 connector plug.
The thread of the M12 connector plug is part of the
metallic housing. The housing is at the potential of
the functional earth via pin 5.
DDLS 508
Electrical connection
36