Installation, 7 dynamic brake connections – Lenze ESV SMV frequency inverter User Manual

Page 21

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Lenze SMVector 13465100 EDBSV01 EN v18

19

Installation

3.2.1.7 Dynamic Brake Connections

For NEMA 1 and NEMA 4X Drives rated up to 30HP (22kW) the Dynamic Brake connections are made as illustrated
herein. Refer to the SMV Dynamic Brake Instructions (DBV01) for complete information.

NEMA 1 (IP31) up to 30HP (22kW)

NEMA 4X (IP65) up to 30HP (22kW)

+

-

The SMV 40...60Hp (30...45kW) models include a dynamic brake transistor as standard and only require the connection
of an external resistor kit for dynamic braking operation. The dynamic brake resistor connections for 40...60 Hp
(30...45kW) drives are standard built-in connections as illustrated in the diagram below. In the 40Hp (30kW) model
drives, the dynamic brake connector is on the right-hand side of the drive and the terminals from top to bottom are B-,
BRAKE and B+. In the 50/60HP (37.5/45 kW) model drives, the dynamic brake connector is on the left-hand side of the
drive and the terminals from top to bottom are B+, BRAKE and B-.

40HP (30kW)

50/60HP (37.5/45kW)

B+
BRAKE

B-

B-
BRAKE
B+

External resistor kits must be connected to terminals B+ and BRAKE (no connection to B-). Refer to the table herein
for external resistor kit selection. Refer to parameter P189 for enabling the dynamic brake function in the 40...60Hp
(30...45kW) models.

400/480 VAC SMV Inverter

Resistor Kit

Type

Hp

kW

Resistance (W)

Power (W)

Catalog #

SAP#

ESV303**4T**

40

30

23.5

1020

841-013

13317724

ESV373**4T**

50

37

17

1400

841-015

13317626

ESV453**4T**

60

45

17

1400

841-015

13317626

600 VAC SMV Inverter

Resistor Kit

Type

Hp

kW

Resistance (W)

Power (W)

Catalog #

SAP#

ESV303**6T**

40

30

35

1070

841-014

13317624

ESV373**6T**

50

37

24

1560

841-016

13317628

ESV453**6T**

60

45

24

1560

841-016

13317628

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