ST130 | Whistling noises from the engine – What can I do?

If the motor makes whistling noises or tends to vibrate when using a frequency converter, this may be due to the carrier […]

ST130 | Operation with minimum frequency – What do I have to do?

Should the motor continue to run at a certain minimum frequency? Set F0.11 (lower frequency limit) between 0 Hz and the set […]

ST130 | Factory settings – How do I reset the inverter?

To reset the ST130 frequency inverters to their factory settings, parameter y0.00 = 1 must be set. With 1, all parameters are […]

ST130 | Forward, Reverse, Stop – Which parameters and terminal assignment?

The ST130 frequency inverters have terminals DI1, DI2 and DI3 with which the inverters can be switched to forward and reverse operation […]

ST500 | Braking and acceleration times

With ST500 frequency inverter it is possible to retrieve various functions via the terminals DI1 to DI8. One of them is to […]

ST500 | Limit starting current e.g. for fan motors

To keep the starting current low, there are various F / V characteristics. The different characteristics must be chosen using F4.00. For […]

ST500 | Introduction to Operating: By Changing the Target Frequency

To change the target frequency of F0.19 = 50.00Hz (the default factory setting) to e.g. F0.19 = 250.00Hz, proceed as follows: In […]

ST500 | DC braking to hold engine into position

With the ST500 frequency inverter, it is possible to vary the braking behaviour with a superimposed DC braking voltage, so as to […]

ST500 | 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 […]

ST500 | 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 […]

ST500 | 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 […]

ST500 | Frequency converter as pump control – Parameter list for pressure control

Note: Unchanged factory settings (except motor parameters) are assumed. Programmed values Parameter Value Functional description F0.03 8 PID control F0.11 4 4: […]

ST500 | Program Sequences – PLC Programming

With the frequency inverter ST500 it is possible to let run program sequences timed. A site of operation would be a grinding […]

ST500 | Keep last frequency after resetting

To get back the frequency, which has been adjusted by buttons, even after a power loss, you only need to change one […]

ST500 | 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 = […]

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 | 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 | 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 […]

ST9000 | Braking and acceleration times

With ST9000 frequency inverter it is possible to retrieve various functions via the terminals DI1 to DI8. One of them is to […]

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 | Limit starting current e.g. for fan motors

To keep the starting current low, there are various F / V characteristics. The different characteristics must be chosen using F4.00. For […]

ST9000 | Keep last frequency after resetting

To get back the frequency, which has been adjusted by buttons, even after a power loss, you only need to change one […]

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 | Introduction to Operating: By Changing the Target Frequency

To change the target frequency of F0.19 = 50.00Hz (the default factory setting) to e.g. F0.19 = 250.00Hz, proceed as follows: In […]

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 | Program Sequences – PLC Programming

With the frequency inverter ST9000 it is possible to let run program sequences timed. A site of operation would be a grinding […]

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 | 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 […]

ST9000 | Pump Control

To use the frequency inverter as a pump control, for example at a pressure sensor for the “actual pressure”, these parameters are […]