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Electrical installation

Parallel connection

Braking units with brake resistor



105

EDBMB935X DE/EN/FR 13.0

7.7 Parallel connection

 Danger!

ƒ S1, S2 and S3 have a mains potential!

– Wait for at least 3 minutes before changing over the switches.

7.7.1 Braking units with brake resistor

You can connect the 935X braking units in parallel in any combination if an

individual braking unit cannot completely convert the arising braking power.

Important notes

ƒ Connect each braking unit in parallel to the terminals +U

and −U

of the

controllers.

– For total lengths £ 0.5 m a shielding is not required.

ƒ Connect a brake resistor to each 9352 brake chopper at the terminals RB1

and RB2.

ƒ Connect the contacts (NC contacts) of the brake resistor temperature

monitorings in series.

ƒ Make sure that the minimum resistance specified in the technical data of

the braking units is observed − also in the case of parallel connection of

brake resistors (see chapter 4.2).

ƒ Wire brake resistors connected in parallel so that a simultaneous

connection and disconnection is ensured. Otherwise the braking power is

not divided equally to the brake resistors connected.

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Lenze EMB9352−C Manual de usuario Pagina 105