Operating Instructions – MOVITRAC® B
205
8
Technical data for accessories and options
Technical data
8.2.7
Regenerative power supply
For MOVITRAC
®
B inverters from size 2 operating in regenerative mode and 4Q oper-
ation, you can use the MOVIDRIVE
®
MDR60A regenerative power supply unit as an al-
ternative to braking resistors. The prerequisite is a powerful supply system. For more
detailed information, refer to the "MOVIDRIVE
®
MDR60A/61B Regenerative Power
Supply Unit and MDX62B Motor Inverter" system manual. This manual can be ordered
from SEW-EURODRIVE.
MOVIDRIVE
®
MDR60A supplies the DC link of the connected MOVIDRIVE
®
inverters
with electrical power from the supply system in motor operation and returns regenerative
power to the supply system in regenerative operation.
UL approval
Protection and
monitoring func-
tions
• Monitoring and protection against thermal overload.
• Detection of power failure within one supply system half-wave.
• Overvoltage protection.
Characteristics of
the regenerative
power supply unit
compared to an
inverter with brak-
ing resistors
• Energy balance: Regenerative power is fed back into the supply system instead of
being converted into waste heat.
• Less installation work with several inverters (network and braking resistor connec-
tions). However, a braking resistor is required to bring the drive to a controlled stop
in case there is a disruption in the supply system.
• Reduction in use of control cabinet capacity and ventilator power if the braking
resistor used to have to be installed in the control cabinet.
General technical data
MOVIDRIVE
®
MDR60A regenerative power supply unit
UL and cUL approval has been granted for MOVIDRIVE
®
MDR60A0150-503-00,
MDR60A0370-503-00 and MDR60A0750-503-00 units. cUL is equivalent to CSA ap-
proval. The MOVIDRIVE
®
MDR60A1320-503-00 unit does not have UL or cUL ap-
proval.
US
US
LISTED
LISTED
®
9007200709048587
MOVIDRIVE
®
MDR60A
0150-503-00 (size 2)
0370-503-00 (size 3)
0750-503-00 (size 4)
Interference immunity
Meets EN 61800-3
P
i
f
kVA
Hz
n
Summary of Contents for Movitrac B
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