Selection of brakes for group drives and multi-motor drives

For group and multi-motor drives, the brake coils are connected electrically in parallel and controlled by the inverter.

Observe the following technical data:

• The nominal voltages of the brakes must be identical.
• The sum of the holding currents of the brakes connected in parallel must be ≤ than the nominal current of the brake control.
• The sum of the accelerator currents of the brakes connected in parallel must be ≤ than the maximum output current of the brake control.
• The operating mode of the HV brake control /B must be set to "Voltage control".

When using AC brakes, SEW-EURODRIVE recommends brakes with a nominal voltage ≥ AC 400 V. This reduces the current load of the HV brake control /B.