Commissioning
Operating Manual PNOZ mml2p
1002234-EN-04
17
6.4
Series connection of 4 decentralised modules
You can connect up to 4 decentralised modules in series to a PNOZmulti link module.
PNOZ mml2p
Power
Ready
Traffic
Fault
6.5
Voltage drop
The max. cable length depends on the voltage drop in the supply voltage cables. The level
of voltage drop is determined by the:
}
Cable resistance on the supply voltage cables
}
Operating current of the modules
}
Load on the modules
To increase the max. cable length, the input voltage can be permanently increased by the
voltage tolerance (see Technical Details).
6.5.1
Guidelines for various cable types
Cable type
Voltage drop per 10 m and per 100 mA
PSS SB BUSCABLE LC
0.1 V
Sensor cable 0.25 mm
2
0.15 V
Sensor cable 0.34 mm
2
0.11 V
Sensor cable 0.5 mm
2
0.07 V
