TDE MACNO DVS200 - 5.8 Braking; 5.9 Safety delay before work on the drive

34  Chapter 5 - Electrical Connections User Manual
5.8. Braking
DVS drives provide DC braking as a standard function. The DC braking function applies a DC current to two of the motor
phases to generate braking torque. The machines kinetic energy is dissipated inside the motor in the form of heat.
The DC braking function cannot provide intermediate braking [e.g. rapid braking from 1400 to 1200 rpm],
but only braking to zero speed from already low speeds. If required, braking current can be measured
from phase U.
M
3~
M
3
~
Energy Machine
Energy
U
DC
-+
Inverter
UV W
/2
Figure 5.8.7: Principle of functioning of DC braking
5.9. Safety delay before work on the drive
After disconnecting a DVS drive from the mains supply, always respect a minimum delay of 60 seconds before starting any
work on its internal parts.