Technical data

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• DOK-POWER*-KDV*2.3****-ANW1-EN-E1,44 • 06.97
4. Control circuits
4.5. KDV 2.3 control circuits without dynamic braking
When an uncontrolled coasting of the drives cannot damage the machine.
Typical applications:
• if the KDV 2.3 supplies only asynchronous drives, and,
• if the end position of the feed axis has been sufficiently damped.
The DC bus voltage is not short-circuited. Asynchronous drives are not braked
by dynamic braking in the presence of a drive fault. There can be no controlled
braking of the drives if the dynamic brake is applied.
There is a controlled braking of the drives under drive regulation at
maximum torque with either an E-stop or if the KDV monitors are tripped.
The NC bridge (X10/13 - X10/14) must not be closed!
The mains contactor immediately drops out when the E-stop button is pressed.
An auxiliary contact on the mains contactor switches the drive enable signal
off. Drive internally, the velocity command is switched to zero in all drives.
Dynamic braking can only be dispensed with if the uncontrolled
coasting of the drives cannot damage machinery.
Motors with mechanical holding brakes can be an alternative.
Application
Features
Operation