8-2
Installation
Rexroth IndraDrive FCS01.1
DOK-INDRV*--FCS01*****-IB01_EN-P
8.2
FLR01 Braking Resistors
When a three-phase a.c. motor is braked (when its frequency is reduced),
electrical energy is recovered and fed into the frequency converter. To
prevent overvoltage deactivation of the frequency converter, an external
braking resistor can be used. In this process, the integrated power
transistor (brake chopper) discharges the DC bus voltage (switching limit
at approx. DC420V or DC720V, depending on type of FCS01) to the
braking resistor. Here, the recovered energy is converted to heat.
With converters with a power range of up to 2.2 kW, standard
substructure resistors
FLR01.1U
can be used. The resistor can
additionally be equipped with an optional temperature switch
FAS01
to
prevent overloading. The fastening material in the groove on the side is
comprised in the delivery range of the FLR01.1N. The braking resistor
and the temperature switch are connected via lines.
Size A
Size B
Fig. 8-2:
FLR01 substructure type
For frequency converters with a power range of 3kW to 7.5kW, resistors
FLR01.1C
can be used for free installation. They should be mounted in
the control cabinet close to the frequency converter. Overload protection
is provided by a temperature switch at the brake resistor. The resistor
and the thermal switch are connected by means of screw type terminals.
Size C
Size D
Fig. 8-3:
FLR01 'free installation' type
FCS01 with power ranges
of up to
2.2kW
FCS01 with power
ranges from 3kW to 7.5kW
Содержание IndraDrive Fc FCS01
Страница 28: ...5 2 Delivery Rexroth IndraDrive FCS01 1 DOK INDRV FCS01 IB01_EN P ...
Страница 34: ...6 6 Certifications and Types Rexroth IndraDrive FCS01 1 DOK INDRV FCS01 IB01_EN P ...
Страница 56: ...8 20 Installation Rexroth IndraDrive FCS01 1 DOK INDRV FCS01 IB01_EN P ...
Страница 88: ...10 4 Commissioning Rexroth IndraDrive FCS01 1 DOK INDRV FCS01 IB01_EN P ...
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