Frequency Inverters
ST500 | Forward and reverse with panel potentiometer
To control the inverter with the panel potentiometer in both directions the following parameters have to be changed. F0.03 4 frequency control […]
ST500 | Factory Settings – How do I reset the inverter?
To reset the frequency inverter ST500 to factory settings, the parameter must be y0.00 = 1 or y0.00 =3 . In y0.00 =1 […]
ST500 | Wiring diagram
In order to always wire the frequency inverter correctly, you will find the connection diagrams of inverters of all power classes here. […]
ST500 | Warning light 230V e.g. fault case – How to connect?
A warning lamp with 230V must be supplied externally. The warning lamp and the mains voltage are then connected in series with […]
ST500 | Parameter transmission to the control unit – What do I have to do?
To transfer all parameters stored in the frequency inverter to the memory location of the control unit, proceed as follows: Go to […]
ST500 | Skip frequency – skip a critical frequency what is to be parameterised here?
There are many applications in which certain operating frequencies lead to resonant vibrations of the motor. In order to pass through these […]
ST500 | Parameterisation example: External potentiometer, switch ON/OFF and change of direction
This example describes the operation of a three-phase motor with a Sourcetronic frequency inverter of the ST500 series. The speed (frequency) is […]
ST500 | Remote control frequency inverter serially with Modbus RS485
The communication between the control unit and the frequency inverter equipped with RS485 must run in RTU mode. In this case, the […]
ST500 | Is it possible to operate a three-phase asynchronous motor on a single-phase mains under speed control?
Yes, this works wonderfully with the Sourcetronic frequency converter of the ST500 230V series. At the output of the frequency converter, 3 […]
ST500 | Switch on torque boost
If the motor has too little torque in the lower speed range when using V/f operation, you can improve this by using […]
ST500 | Change display (rpm)
In order to have another value displayed by the frequency inverter during the process, e.g. the output voltage or the current, parameter […]
ST500 | Analogue sensors – How are they connected and parameterised?
There are a variety of sensors (e.g. pressure sensors, flow sensors, temperature sensors, …) that output their measurement results in the form […]
ST500 | Control of the frequency inverter via an external PLC
You can switch the digital inputs of the frequency inverter via the active outputs of an external PLC. To do this, first […]
ST500 | Automatic start after power up – How does the inverter automatically start forward after power up?
The following settings must be parameterised so that the frequency inverter automatically goes into forward or reverse operation after being switched on […]
ST500 | I need a free stop or emergency stop for an emergency stop button – What do I have to do?
The frequency inverters of the ST500 series have terminals DI1 to DI6 or DI8, with which the inverter can be switched to […]
ST500 | Programming Keys
How can the buttons on the control panel be reprogrammed? Example: How can the direction reversal be brought to a key? QUICK […]
ST500 | Switching from AI1 to AI2
If a potentiometer or potentiometer and a sensor are used, how does the switching from AI1 to AI2 work? Configure the two […]
ST500 | ST®Drive
Error message: “No device could be found”. The appearance in the device manager only means that the RS485 adapter was found. Devices […]
ST500 | Permanent magnet synchronous motor
Permanent magnet synchronous motors can be operated by the ST500 frequency inverter, but only if a rotation or incremental encoder is present […]
ST500 | Start with “controller enable”
What must be set so that the inverter starts running immediately when it receives power? See example 2 for E3.06 on page […]
ST500 | Single-phase motor
Frequency converters are designed for operation with a three-phase motor. These are asynchronous or synchronous motors. They load the three phases symmetrically. […]
ST500 | EMC filter installation
How is the mains filter connected? See the picture at the beginning of chapter 10 in the instruction manual. Back to the […]
ST500 | When do you need a mains filter?
When is a mains filter needed and when can it be omitted? In any case, when other devices are disturbed. Back to […]
ST9000 | Wiring diagram
In order to always wire the frequency inverter correctly, you will find the connection diagrams of inverters of all power classes here. […]
ST9000 | Initial operation – What should I watch for (motor data)?
Before a initial operation of a frequency inverter you should absolutely check that the factory settings are loaded y0.00 = 3. Then the […]
ST9000 | Power Class – Which Model Do I Need?
Normally, the power class of the inverter should be the same as the motor’s. With heavy-duty starting motors however, it may be […]
ST9000 | Minimum Frequency for External Potentiometer
To have the external potentiometer during operation with minimun frequency in the left hand position, the parameters have to be adjusted. On […]
ST9000 | Target frequency over 320Hz
To set a target frequency greater than 320Hz, it is necessary to make an resolution adjustment of the target frequency F0.02 = […]
ST9000 | DC braking to hold engine into position
With the ST9000 frequency inverter, it is possible to vary the braking behaviour with a superimposed DC braking voltage, so as to […]
ST9000 | Change display settings (r/min)
To display a different value during the process on the display, the value of F6.01 must be changed. This parameter is specified […]
ST9000 | Forward, reverse, stop – Which parameter and terminal assignment?
The frequency inverters ST9000 have the clamps DI1, DI2 and DI3 with which the inverter can be switched via control signals or simple […]
ST9000 | External Potentiometer – How to connect it and which one is compatible?
An external potentiometer, which is connected to AI1, +10V and GND will have a resistance of 1kΩ and a power of 2W. For […]