Product description
Page 28
3
Product description
3.1
General
The item servo positioning controller C Series devices are intelligent AC servo inverters with substantial parameterisation
possibilities and extension options. They are flexible and can be easily adapted to a number of different applications.
These servo positioning controllers are designed for receiving so-called FSM modules (Functional Safety Modules). Thanks to
their integrated safety features, external monitoring devices can be omitted for numerous applications.
The series includes types with single-phase and three-phase supply.
Type key:
Example using the C 1-05
Figure 1:
Type key
The single-phase supply types are designed for connection to the 230 VAC mains and comprise an active PFC stage (Power
Factor Control, with the C 1-08 being an exception). The PFC stage is an active mains current converter required to fulfil the
corresponding standards on the limitation of the mains harmonics (for category C2, residential areas).
The PFC stage also serves the active control of the DC bus voltage. The PFC stage works according to the boost operation
principle and provides a nominal DC bus voltage of 380 VDC. This voltage is available regardless of the quality of the mains
voltage and therefore also in the case of fluctuating main voltages or undervoltage. This is an important advantage regarding
the selection of the servo motor, because, as compared to devices with a passive mains supply, higher rotational speeds can
be achieved and/or higher torque constants can be selected.
Furthermore, due to the active PFC stage, the device is also suitable for varying voltage operation down to 100 VAC mains
supply. However, the limitation of the active power input due to the allowed maximum current of the PFC stage must be taken
into consideration in this case.