EN
6
Note
In the context of this operating manual, a note constitutes important information which is of particular
importance for the understanding and the operation of the device.
PC operation
The configuration and , as required, the operation of the frequency inverter is carried out using a
standard PC
Micro step start-up
With micro step start-up, the BLDC motor is operated as a synchronous motor with constant current. The
output frequency is slowly increased from 0 Hz to the start-up frequency, after which the system switches
to regulated motor running. The micro step start-up permits start-up of sensor-free BLDC motor with
large centrifugal masses (e.g. vacuum pumps) for which the normal start-up fails owing to the large
mass moment of inertia.
Normal state
If no error occurs after switching on, the LED H4 "Operation" (green) lights up.
This machine state is called the normal state.
Configuration
Configuration is the operating procedure for setting up the frequency inverter for use, motor settings and
device specific settings being implemented via the control panel. It is also possible to display different
measured values.
Qualified staff
Are in the context of this operating manual persons who are familiar with the installation, assembly,
commissioning and operation of the product and with the possible dangers.
Caution
In the context of the operating manual and of the warning signs mounted on the device, this means that
slight injury or damage to property may occur if the corresponding precautions are not taken.
Warning
In the context of the operating manual and of the warning signs mounted on the device, this means that
death, serious injury and considerable damage to property may occur if the corresponding precautions
are not taken.
1.4 Purpose and Potential Applications
The SycoTec frequency inverters e@syDrive 4425, 4426, have been specially constructed for the operation
of three-phase asynchronous motors (ASM) and brushless DC motors (BLDC), as used in spindles, e.g.
for grinding, cutting and drilling units on machine tools.
They can also be used for operating motors which are constructed from motor elements and serve, for
example, as a drive for test stands or other physical equipment (e.g. vacuum pumps, centrifuges, optical
systems etc.).
Gentle operation of the motors is achieved by the pulse amplitude modulation (PAM) used.
Specifically, the following motor types can be operated:
- Asynchronous motors (ASM)
- Parallel operation of ASM is possible specific to the application (for configuration of frequency inverter
please contact the SycoTec's technical support).
- Brushless DC motors without sensors (BLDC)
- Brushless DC motors with sensors (BLDCS)
An integrated load compensation offers high speed constancy and - through low idling currents - avoids
unnecessary heating up of the connected motors.
At the stop command, the connected motor is braked until it stops.
The control and monitoring of the inverter are performed by several microprocessors. This ensures high
reliability and flexibility.
A firmware update can be performed on a PC via a serial interface (RS 232); please contact SycoTec in
this context.
The frequency inverter can be completely remote-controlled. Various inputs and outputs are freely
programmable.
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