ID 442426.04 50WE KEEP THINGS MOVING
Technical data
4
Manual SD6
4.9 Communication modules
4.9.1 EC6 communication module
Accessory part EC6 is required for an accessory part.
Cable specification
STOBER provides ready-made cables for the EtherCAT connection. These
cables must be used to ensure proper functionality.
It is also possible to use cables with the following specification:
4.10 Quick DC-Link
Electrical energy recovery
Motors that are being braked act like generators: in operation with an active
drive controller, they convert the kinetic energy inherent in the movement into
electrical energy.
This electrical energy is fed into the DC link capacitors of the drive controller. It
can be made available to driving motors if the DC intermediate circuits are
connected, which makes for efficient use.
When a motor brakes, the voltage in the DC intermediate circuit increases.
However, the capacitors in the DC link are only able to absorb a limited amount
of energy. If the DC link voltage increases above a defined limit, a chopper
circuit is activated that converts excess energy to heat via a connected braking
resistor.
If the maximum admissible voltage is reached, it is important to prevent
possible damage: The drive controller takes on the "Fault" status and switches
off.
In a DC link connection, the DC link capacitors of the relevant drive controllers
are switched in parallel. That increases the maximum amount of energy that
can be absorbed in the DC intermediate circuit in comparison to an individual
device.
Especially in winding technology that use motors for permanent braking or in
general for regular acceleration and braking cycles, the DC link connection
saves energy and money.
Information
For more extensive information about EtherCAT consult the
EtherCAT operating instructions (see section 1.2 Further
documentation)!
Plug wiring Patch or crossover
Quality CAT5e
Shielding SFTP or PIMF
Information
In a controlled emergency stop, all drive controllers may possibly be
braking at the same time. You should take this into consideration in
the design to determine whether a central braking resistor is
necessary to be able to stop system parts safely within a specified
time.
To Next Page
Loading...
