ETAS ES930.1, Руководство пользователя

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ETAS Hardware Description
ES930.1 - User Guide 22
In this application case, you must open up the module chain. Exchange the
existing connecting cable between the two modules with a Y boost cable for
additional direct infeed of the supply voltage. The module chain is now closed
again and the power supply of the subsequent modules is ensured.
The special design of the Y boost cable prevents a negative feed into the front
portion of the module chain and resulting potential differences.
3.5.4.2 When is it necessary to use a Y Boost Cable?
An exact calculation of the power consumption of a module chain is possible
only if numerous variables are known:
• Supply voltage of the first module at the infeed point
• Minimum supply voltage at the last module of the chain
• Number and type of modules
• Cable length
• Cable type
• Ambient temperature
The required minimum voltage for the supply of the system must be deter -
mined separately for every experimental arrangement.
3.5.5 Switching the Module on and off
The ES930.1 module is not equipped with the "Wake Up" function to ensure a
controllable behavior of the outputs, including the Half-bridges (power stages)
and circuits and devices connected to it, when switching the module on and off.
For this reason, switching the power supply of the module on and off and,
therefore, the module, must be done directly by the user.
3.5.6 ES93x Modules in mixed Module Chains
To be able to use the "Wake Up" function of the ES4xx modules in a mixed chain
consisting of ES4xx and ES93x modules, the ES93x modules must be con
-
nected at the end of the module chain.
NOTE
The ES930.1 dopes not forward the wake-up signal to subsequent modules in
the chain.