COMPACT-LINE
With the new ER24 product range, the successful fusion of the ER23 and ER51 series, you can control synchronous and asynchronous motors efficiently and reliably. The extremely narrow design (ER24B up to 4.0 kW) saves space, while flexible mounting options—vertical, side-by-side, or horizontal—allow for maximum customization.
Integrated safety functions (STO, SLS, SS1, SMS, GDL) and programmable function blocks for timers, counters, comparators, and short automation sequences make the ER24 a versatile all-rounder. In addition, the open-loop synchronous motor function ensures high flexibility in application.
The ER24 is a compact frequency converter for mechanical engineering that impresses in practice with its fast commissioning, high functional density, and easy integration. It reliably controls asynchronous and synchronous motors, offers Modbus and CANopen as standard, and can be expanded with common fieldbuses such as PROFINET or EtherNet IP if required. In addition, there are integrated safety functions such as Safe Torque Off and other safety options, which often reduce the need for additional hardware.
Compared to many other solutions, the ER24 is particularly advantageous if you want to save space in the control cabinet in machine projects, need fast bus integration, and want to map functional safety directly in the drive in a clean manner. This reduces planning effort, wiring, and commissioning time and ensures a robust, service-friendly solution during operation.
The new control algorithm up to 599 Hz for permanently excited synchronous motors without feedback ensures optimized performance and easy connection of the motors.
The sensorless vector control provides full torque from the lowest speeds.
The patented pole wheel position measurement supports all synchronous motor types and also stepper motors.
The ER24 combines the successful ER23 and ER51 series. This new product range operates synchronous and asynchronous motors. Below, you can configure your ER24K according to your individual requirements and request a corresponding quote directly from us!
In principle, it is possible to operate a low-power motor with a higher-power frequency converter.
This depends on the ratio between the motor and converter power.
Experience shows that the ratio should not exceed 1:4.
For example, it is not recommended to operate a 0.75 kW motor with a 30 kW BLEMO frequency converter.
This combination can be used for testing purposes, but the motor phase monitoring must be deactivated.
A BLEMO frequency converter can be controlled using a Siemens PLC via Profinet or Profibus-DP.
This requires an additional communication card, which you will find in the frequency converter catalog.
Please note that not all frequency converters support this bus communication.
Connection to Profibus-DP or Profinet is possible with the ER24 and ER41.
Minimum settings for bus operation (direct control of the QW addresses of the ER24 / ER41):
– First, set up the slave ER24 / ER41 xyz in the TIA Portal. Please install the GSD or GSDxml device file beforehand.
– Then select a telegram type in the HW configuration of the ER24 / ER41 and move it to the I/O field.
In this example, we are using telegram 102, which consists of 6 PZDs.
PZD stands for “process cyclic data.” PZDs are data that are to be exchanged cyclically.
This includes status words, target speeds, etc. (see image “EA assignment of PZDs”).
The following four channels are already preset and do not need to be changed. The result during operation can be seen in the “Observation table” image
– The first reserved QW of the PZD address must be used to send the control word (according to Drivecom standard: 16#0006, Stop 16#0007, Motor run 16#000F)
– The second double word sends the target speed (rpm).
– The first IW is read out to read the status word of the ER24 / ER41s frequency converter.
– The second double word is read out to read the current ACTUAL speed (rpm).
– The words should then be declared as variables (see image “Variable declaration”).
– In the frequency converter, the setpoint source fieldbus must be set (see image “Settings ER24 / ER41 setpoint source bus”).
– The addressing of the ER24 / ER41 in the bus must also be set. This naturally differs depending on the bus type.
For Profibus-DP, the address is set to 1-126 (see image “Settings Profibus Addressing ER24 / ER41”),
for Profinet, an address is assigned via PLC: DCP or an address setting in the ER24 / ER41 menu: fixed IP (see image “Settings Profinet Addressing ER24 / ER41“).
German
Your personal contact person
