R911390755 is part of the CSB Drive Controllers Series by Indramat Drives.
Specs
Operating Temperature: 0 to +40 degrees Celsius Certified Personnel: Required for operation Personalized Control Sections: Available Ethernet Communication: Multi-master Control Section Type: Single-axis Hardware Modification: Not allowed Software Decompiling: Not allowed Installation: As per relevant documentation PWM Frequency: Adjustable: 2 kHz to 16 kHz in increments of 2 kHz Peripheral Devices Connection: Digital input/output available