A PLC control system was needed for test rigs for gearbox systems which required high speed and high torque capabilities.

Customer expected

  • precise synchronization of electrical motors for the test components
  • data logging for each cycle to capture torque and speed value


  • Siemens S7 PLC with Sinamics Drives
  • SCADA software for operator control
  • Logged data in an external device for data access, retrieval and analysis


  • Improved gearbox testing capabilities both in terms of the high torque and speed requirements
  • Analytical capability (data used to correlate actual road test results with gearbox test results)
  • Cost savings through reduced power consumption
Press Shop Automation