With its integrated control unit, the CM Series of actuators convinces customers with the following key facts: 

Smart code
Using actuator-specific codes, it is possible to retrofit additional functions subsequently required, such as 0/4–20-mA position feedback or 0/4–20-mA inputs, doing so immediately, without tools and without any additional hardware on the actuator. 

Two analog inputs
Input 1 for positioner, galvanically isolated from the electronics. Input 2 for external actual value in conjunction with the PID controller. Using jumpers, Input 2 can also be configured for an input with 24-VDC power supply (for passive transmitters). 

Firmware upgrade
Updates of the software can be easily performed by the user with a micro-SD card or USB connection. 

Analog 0/4–20 mA position output
The active analogous position output is galvanically isolated from the other electronics. In addition, jumpers can be used to configure the output as a current sink (passive position indicator).

Process adjustment
For process optimization and behavior in emergency situations, different speeds can be set in local and remote operation as well as for emergency-open and emergency-shut commands.

In developing the CM Series of actuators and simultaneously developing the second genera- tion of electronics for the control unit, it became possible to combine these basic aspects with the desire for even more flexibility in one product. Most options can be extended at any time by means of  software enablements.

AC/DC multi-range input
The default electronics allow a wide supply range with
1 x 90–240 VAC 50/60 Hz and 100 ... 220 VDC. 

Noise level
The CM Series impresses
people with its quiet operation. Measurements at maximum speed have shown a maximum noise level of 54 dB at a distance of 1 m.

Frequency-converter technology
Using unique FC technology, it is possible to increase the minimum speed up to a factor of 29. This means wide-ranging requirements for speed and positioning times are combined and covered in a single device.