R911338054 is part of the HCS Compact Converters / Drive Controllers Series by Indramat Drives.
Specs
Rexroth Bosch Controller: Yes Material: High Quality Fan Control: Dependent on Performance Error Action: Automatic Shutdown Data Buffering: Two Available Options for MSM Encoders Battery Box: Required, One Only Battery Connection: Via D-sub Connector Cable Alternator Connection: Uninterruptible Power Supply Cabinet Operation: Possible with Fan and Corresponding Filters