Example

MC07B0015-5A3-4-00/DFP21B with options FSC11B & FBG11B. MOVTRAC^® B supplies the digital inputs DI01 (CW/Stop) and DI03 (Enable) with voltage. The motor brake is controlled via DO02.The brake coil of the brake relay requires 100 mA at DC 24 V. The master PLC evaluates the fault signal contact via DO00 at a current consumption of 50 mA.

Calculating the total power demand:

• Power demand of the basic unit (incl. FSC11B): 3.8 W
• Power demand of the DFP21B fieldbus option: 3 W
• Power demand of the brake coil: 2.4 W
• Power demand of the fault signal contact: 24 V x 0.05 A = 1.2 W
• Power demand of the input terminals: 0.4 W

The total power demand is 10.8 W and must be provided by an external DC 24 V supply.