Make sure that the device version of the device corresponds to the software
version. Otherwise an error message will be displayed when you load the
software.
The appropriate device version is indicated in the software designation as
follows:
▶
Device version: 7.000
▶
Software: f02001v07048.x36
5.4
Function
5.4.1
General Functional Description
Three-phase motors connected to the standard mains supply with fixed voltage and
frequency can only be driven with definite speed graduation according to the number of
motor poles. The maximum speed that can be reached is 3,000 rpm (3,600 rpm at
60 Hz mains frequency) for a motor with 2 poles. But on startup the motor loads the
distribution system with currents up to the 5-fold of the rated motor value. This causes
problems in particular when larger machines are used.
Using frequency converters eliminates these disadvantages. The solid-state frequency
converter transforms the inflexible mains supply into a rotating field, continuously
adjustable in voltage and frequency. As a result, the speeds are infinitely variable and
the starting current is considerably reduced .
In addition, suitable electronics permit compensation of parasitic characteristics of the
motor, or initiation of high-dynamic control cycles.
In order to operate three-phase motors at least the following connections must be real‐
ized at the devices of series FC2:
▶
Mains supply
WARNING
Electric shock due to energized supply lines
Make sure that the supply lines are de-energized during connection of the device.
▶
Motor connection
▶
Control signals and reference value setting
Control signals can be set via different sources, such as e.g. CNC, PC or serial inter‐
face.
5.4.2
Working Method of the System
The frequency converter is supplied by three-phase mains supply. Mains fuses must
be provided externally.
The logic supply is provided via an external 24 V power supply usually installed in
every switch cabinet.
W
Description of the Device
FC2 - Frequency converter 02192100xy
25
5
Summary of Contents for FC2
Page 4: ...Chapter Overview W 4 FC2 Frequency converter 02192100xy ...
Page 8: ...Content W 8 FC2 Frequency converter 02192100xy ...
Page 12: ...General Information W 12 FC2 Frequency converter 02192100xy 2 ...
Page 22: ...Unit Assembly Complying EMC W 22 FC2 Frequency converter 02192100xy 4 ...
Page 30: ...Technical Data W 30 FC2 Frequency converter 02192100xy 7 ...
Page 48: ...Connectors W 48 FC2 Frequency converter 02192100xy 8 ...
Page 70: ...Safety Circuit Restart Lock STO W 70 FC2 Frequency converter 02192100xy 12 ...