Product Description:

The PSI6100.100-L1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat as part of the PSI Frequency Inverters series. It converts fixed line power into a variable output that regulates spindle or process speed, allowing automated equipment to follow programmed motion profiles. This arrangement supports speed control without a separate drive controller and suits machinery that needs coordinated process regulation.

Input power is supplied from a three-phase line between 400 to 480 VAC, and heat from the power stage is removed by an air-cooled path that works with enclosure airflow. Drive status is available through a single 20 mA analog output, while 24 V inputs, timers, and I/O handle discrete logic functions. A protected electronics compartment provides IP20 protection and fits the 3K3 climatic category for control rooms with moderate humidity. User programs can contain up to 256 steps and are held in buffered RAM, while flash memory preserves stored data during power loss. The inverter also resolves phase-angle references in fine increments and uses isolated programming to keep the logic circuitry separated from ground faults.

Programming access is provided through a front-panel 9-pin D-Sub socket that shares lines with the V24/RS232 port, and both interfaces are galvanically isolated from the power stage. Real-time tasks run on a 1 ms time base, allowing the controller to synchronize speed changes with auxiliary axes and related machine functions. Backup power for the buffered memory is supplied by an AA lithium cell rated at 3.6 V, helping parameters remain available during extended shutdowns. Integration with 24 V timers, isolated I/O, and 24 V counters allows direct connection to sensors without additional relays, while the isolated interface helps protect low-voltage circuits from drive-side faults.