Project planning example

The following design example shows the design of the 24 V voltage supply on the MDX9.A-0040-5E3-4-.00 inverter with multi-encoder card CES11A and I/O extension CID21A:

  • The inverter supplies the DI00 digital input (output stage enable) with voltage.
  • The motor brake is controlled via DB00. The coil of the brake relay requires DC 100 mA at DC 24 V.
  • The 4 outputs of the CID21A option are each subject to a load of DC 50 mA.
  • Power demand of the basic unit: 20 W + 1 × motor encoder: 5 W
  • Power demand of the CES11A option without encoder: 0.8 W
  • 1 × external encoder: 12 W
  • Power demand of the CID21A option without terminals: 0.4 W
  • Power demand of the inputs (basic device): 1 × 0.1 W = 0.1 W
  • Power demand of the brake control at DB00: 24 V × 0.1 A = 2.4 W
  • Power demand of the binary outputs: 4 × 24 V × 0.05 A = 4.8 W
  • Total power demand: 45.6 W