R911257999
The Bosch Rexroth Indramat R911257999 (MDD112D-N-020-N2L-180PA1) is a digital AC servomotor, characterized by a blocking brake activated by its digital drive controller. Weighing in at 59kg with a D-length code, the unit entails a reduced balance class. It is designed with a blower connection for surface cooling and power connections for not only the power cable but also the blocking brake and temperature sensor. It's worth noting that the blocking brake is not guaranteed to ensure personnel safety. The servomotor records relative position data in its drive controller and surfaces a breaking point for maximum torque based on the DC bus voltage supplied by the driving source.
In terms of operational reliability, it supports an S6 mode for intermittent duty torque with a permissible storage and transportation temperature ranging from -20°C to 80°C. Its housing is coated with a resistance to dilute acids and lyes, and has an 0.18 Ohm winding resistance at 20°C. For secure placement, the device housing includes two M8 tapped holes. Importantly, transport or storage should never be done vertically. Power cables can be inch or metric diameter, and safe operation requires a grounding connection with a drive amplifier. Mounting should only be done by skilled personnel due to risks of damaging the motor bearings under heavy loads or impacts. Its design accommodates the absorption of external forces at the shaft.
