imc CRONOSflex Getting Started Version 1.8 - 08.01.2014
imc CRONOSflex
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1.4.3 Directly stacked modules
imc CRONOS
flex
Modules can be stacked directly using a click-mechanism, thus not requiring extra
power supply or cabling. Any signal conditioning modules directly connected to a base unit are jointly
activated/deactivated by the base units main switch.
Directly connected imc CRONOS
flex
Modules with extra device
power supply: stacked by “click”-mechanism
The current-carrying limit on the Module connector also limits the amount of signal conditioning
modules which can be stacked directly. The higher the supply voltage is set, the less this limit matters,
since the modules’ (constant) power consumption leads to correspondingly low currents. The optional
supplemental supply unit will convert the 10 V to 50 V input voltage to a fixed intermediate circuit
voltage of 50 V at max. 100 W.
Thus, using the supplemental supply unit is the recommended configuration, especially in applications
where only low voltage power supply is available (12 V vehicle) and extensive, primarily centrally-
concentrated systems are set up.
If the supplemental supply is not used, then the wide-range (10 V to 50 V) rated supply voltage is used to
power the modules, which means that at low voltages and correspondingly high currents there may be a
maximum size for directly stacked module blocks to observe. However, this constraint by no means
applies to the overall system, only to stacked blocks!
A distributed system of multiple, separately powered module blocks connected to each other by
network cable is an easy way to circumvent any block-size limitation.
Directly connected imc CRONOS
flex
Modules without extra
device power supply: stacked by “click”-mechanism
Note
Make sure that the overall power consumption does not pass the available power consumption.
Example:
For 24 V, the maximum size of a block is 6 to 11 modules, depending on the module type. For a
supply voltage of 12 V (vehicle battery), the limit is about 3 to 5. For each satellite block consisting only
