•
Supply voltage DC 10.8 V – 28.8 V (SELV/PELV as per currently valid standards)
•
Electricity source with at least 3 W power
To ensure protection against short-circuits/overload in the customer’s supply cables,
the wire cross-sections used must be appropriately selected and protected.
5.5
Wiring the interfaces
5.5.1
Wiring the digital inputs
The digital inputs can be used to start a teach-in procedure or to select a device operat‐
ing mode.
The number of digital inputs available at the connections will vary, depending on the
device,
see "Pin assignment of the connections", page 17
.
Voltage level at the input starts the corresponding function of the device.
Electrical values
LOW: 0 V ≤ U ≤ 2 V
HIGH: 10 V ≤ U ≤ U
V
Input, teach-in (ET)
PNP and push/pull: Teach = HIGH; Run = LOW
NPN: Teach = LOW; Run = HIGH
Input, blanking input (AT)
PNP and push/pull: Blanked = HIGH; Free = LOW
NPN: Blanked = LOW; Free = HIGH
Input, light/dark (L/D)
PNP and push/pull: Light switching = LOW; Dark switching = HIGH
NPN: Light switching = HIGH; Dark switching = LOW
Input, system sensitivity (F/C)
PNP and push/pull: Coarse = HIGH; Fine = LOW
NPN: Coarse = LOW; Fine = HIGH
5.5.2
Wiring the digital outputs
The number of digital outputs available at the connections will vary, depending on the
device,
see "Pin assignment of the connections", page 17
. If the allocated event occurs
in the read process, then the corresponding digital output is live.
In each case, the digital outputs are short-circuit protected and overcurrent protected.
Switching behavior: PNP
or
NPN
or
push/pull
Electrical values
The sum current (100 mA) for all digital outputs is identical.
PNP
HIGH: U
V
−3 V; LOW: 0 V
NPN
HIGH: U
V
; LOW: ≤ 3 V
Push/pull
HIGH: U
V
−3 V; LOW: ≤ 3 V
In the case of a push/pull sensor, the signal must be inverted in the control system in
order to obtain the same result as a sensor with NPN switching behavior.
5
ELECTRICAL INSTALLATION
18
O P E R A T I N G I N S T R U C T I O N S | KTS/KTX Prime
8020708.ZMT3/ | SICK
Subject to change without notice
