Possible Supply Configurations - IMC CRONOSflex Getting Started

(4) via the Ethernet network cable
according PoE (Power over EtherCAT)
PoE – supply is also supported for multiple modules each connected via CAT5 network
cables, however not for module substacks
Maximum: 350 mA, corresponding to PoE power: 16.8 W (48 V) or 17.5 W (50 V)
activation/deactivation via power supplying module, e.g. central main switch on Base Unit
minimum supply voltage of the module fed via network cable (base unit or measurement
module): 42 V DC (e.g. optional AC/DC power adapter with 48 V)
An optional supply module in the left handle provides a constant voltage of 50 V adequate
for PoE, for any input voltages of 10 V to 50 V.
Standard 230 V AC adapter for PoE can be used

1.4.2 Possible supply configurations

For the supply of imc CRONOSflex Modules via the LEMO plug, the modules' plug-in (clicking) connectors,
or via PoE, the following rules apply:
current limit of module plug-in connectors: 3.1 A
current limit for PoE via network cable: 350 mA
The PoE supply lines are conducted via RJ45, but not via the module connector.
The local supply for a stacked block of directly connected imc CRONOSflex Modules always comes
from the leftmost module's LEMO plug: pin-encoding on the module connector distinguishes which
neighboring module is connected "on the left" and blocks the module's own LEMO supply
connection.
A block's leftmost module obtains its power either from its LEMO terminal (which is connected in
all cases) or from the voltage at the network cable's (RJ45 network cable's) PoE line, whichever
voltage is greater.
As a result, there are a number of different typical application topologies, presented below. The
diagrams used employ the following symbols:
imc CRONOSflex Getting Started Version 1.8 - 08.01.2014
Power supply options 17