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• DOK-POWER*-TVD*1.3****-ANW1-EN-E1,44 • 02.97
2.1 Functional power features of the TVD 1.3
• Connected load
The TVD 1.3 can be operated with power systems of 3 x AC 380..480V,
50...60Hz without a transformer. Additional auxilary units are offered (NAM
1.3..) which suppress reactions on the power system.
• Power shutdowns by internal contactors
The contactor to shut down power to the power system of the drives is an
integrated component of the TVD 1.3.
• Internal DC bus dynamic braking
Motors with permanent magnetic fields can be braked to a standstill by the
DCbusdynamicbrakeintheeventoffaultconditionsinthedriveelectronics.
• How the drive system responds to a power failure
can be programmed by inserting an external jumper:
– without a jumper, the drives brake at maximum torque
– withajumper, a signalvia a potential-freecontact is transmittedto the NC
control unit which can then brake the drives controlled to a standstill.
Costly tools and workpieces are thus protected against damage.
• Regulated DC bus voltage
Drive dynamics maintained with mains undervoltage.
• Charging current limit of the DC bus capacitors
The inrush current does not have to be taken into consideration when
selectingtheswitchingdevicesofthepowersystem.Thisextendstheservice
life of these devices.
• Extreme load capabilities of the control voltage
Up to ten drive modules can generally mounted to one supply module.
• Easy to service
The signal leads are connected via plug-in screw clamps.
• Two different power stages available
The supply module TVD 1.3 is available with a continuous DC bus power of
7.5kWor15kW.Thismeansthatthepowersupplycanbeoptimallymatched
to the requirements of the respective application.
• Overload capabilities of the TVD 1.3
The TVD 1.3 can overloaded for a short duration for the purpose of
accelerating feed and main drives.
The maximum possible acceleration power, as relates to the duration of
acceleration,isoutlinedinthesection"OverloadCapabilitiesoftheTVD1.3".
The values found there must be taken into account during project planning
and may not be exceeded.
• UL Registered
The device is made according the UL-Standard.
2. Range of Applications
