SmartStart SL304
5.8.2
Power PWR/IO Connector
Panel socket 4-pin.
Pin number
Signal mark
Description
1
GND(-)
Negative pole of DC supply voltage
2
VCC(+)
Positive pole of DC supply voltage (+9 to +36 V DC, 1 A)
3
IN0
Binary input
4
OUT0
Binary output
Table 6: Connection of PWR / IO connector
Figure 16: PWR / IO connector
Unit has to be supplied by a power supply specified as a Limited Power Source (LPS)
according to Annex Q of IEC 62368-1:2014. If the power supply/cable provided with
device is not used, always use the cables with minimum wire size (nominal cross section)
0.5 square mm for power supply.
The power supply for the router must be b9 V to +36 V DC, with current output
1 A. Protection against reversed polarity without signaling is built into the router.
Note:
The
protection against reversed polarity is lost if the negative pole is grounded!
The router is awakened after the power supply outage and subsequent renewal.
Figure 17: Circuit example – connection of power supply
The PWR / IO interface is also designed for the processing of binary input and control
(setting) of binary output.
17
