R911220111
The R911220111 (TDM 2.1-30-300-W0), a product engineered by Bosch Rexroth Indramat, belongs to the well-regarded Indramat TDM series—known for simplifying industrial motor control. This servo drive module, crafted specifically for low to medium power ranges, provides precise control and versatility on the production floor. One of its distinctive features is the light-emitting diodes on its exterior, designed for simplified monitoring and effective troubleshooting. These indicators flag conditions such as power status, overheating, and whether the current is within the permissible range. Notably, to enhance safety, the TDM servo drive module has a starting lockout feature allowing easy power control with the flip of a switch.
In particular, the R911220111 (TDM 2.1-30-300-W0) is from the TDM 2 subseries and requires mounting in a control cabinet to limit accidental contact. Optimal operation conditions for this module include ensuring the internal temperature of the control cabinet remains two degrees Celsius above the outside temperature to inhibit dew formation. Surrounding temperature should also be monitored, as a rating drop in non-condensing humidity is prevalent when surrounding temperatures increase. Furthermore, prime performance is achieved within an environment devoid of airborne particulates and minimal exposure to vibrations or shocks. The R911220111 (TDM 2.1-30-300-W0), boasting a rated current of 30 Amperes and a link circuit voltage of 300 Volts DC, utilizes natural convection for cooling. As a legacy module, repair should be prioritized as brand new units are not readily available.
