Delta BUE Series - Manual

2007-11- 07

5011642602-BU02

BUE Series

Brake Modules

Instruction Sheet

X

Preface

Congratulations on your purchase of DELTA’s brake module. BUE brake
units are applied to absorb the motor regenerative energy when 3-phase
induction motor stops by deceleration. With BUE brake unit, the
regenerative energy is dissipated in the brake resistors. To prevent
mechanical or human injury, please read this instruction sheet thoroughly
before wiring.
BUE brake units are suitable for VFD-E/VFD-EL Series. BUE brake units
need to be used in conjunction with BR series brake resistors to provide the
optimum brake characteristics.
BUE brake units (20015 and 40015) are approved by Underwriters
Laboratories, Inc. (UL) and Canadian Underwriters Laboratories (cUL). The
content of this instruction sheet may be revised without prior notice, please
consult our distributors or download the most updated version at
http://www.delta.com.tw/industrialautomation.

Y

Specifications

115/230V Series

460V Series

BUE-20015 BUE-20037 BUE-40015 BUE-40037

Max. Motor Capacity (KW)

1.5 3.7 1.5 3.7

Max. Peak Discharge

Current (A) 10%ED

3.6 16 1.8 8

Outpu

t

Rating

Brake Start-up

Voltage (DC)

328/345/362/380/400

±

3V 656/690/725/760/800

±

6V

Inpu

t

Rating

DC Voltage

200~400VDC 400~800VDC

Heat Sink Overheat

Temperature over +100

°

C

Prote

cti

on

Power Charge

Display

Blackout until bus (+~-) voltage below 50VDC

Installation Location

Indoor (no corrosive gases, metallic dust)

Operating

Temperature

-10

℃

~+50

℃

Storage Temperature

-20

℃

~+60

℃

Humidity

90%R.H., Non-condensing

Environmen

t

Vibration

9.8m/s

2

(1G) under 20Hz

2m/s

2

(0.2G) at 20~50Hz

Mechanical Configuration

Wall-mounted enclosed type IP20

Z

Dimensions and Installations

3.1 Brake resistor

TYPE

L1

L2

H

D

W

MAX.

WEIGHT(g)

BR080W200

140 125 20 5.3 60 160

BR080W750

140 125 20 5.3 60 160

BR300W400

215 200 30 5.3 60 750

3.2 Brake unit

3.3 DIN Rail Installation

[

Outline and Wire Gauge

4.1 Outline

Sla ve ou t p u t/ in p u t

Te rmin als

2 2 0

2 4 0 2 3 0

2 1 0 2 0 01 9 0

OFF

ON

Po w er la m p

Bra ke la mp

Fa u lt l am p

MAST ER/ SL AVE

Sw it ch

Po w er I n p u t

Te rmin al

Bra ke R es ist or Term in al

Dip Sw it ch
f o r I n put Vo lt a ge Se tt ing

M 1 SL AVE ou tp ut si gn a l +
M 2
S1
S2

：
：

：
：

SL AVE ou t p u t sig n a l -

SLAVE inpu t s ig na l +
SLAVE inpu t s ig na l -

4.2 Wire Gauge for Terminals

Circuit

Terminal

Symbol

Wire Gauge

AWG/mm

2

Terminal

Power Input

Circuit

+(P), -(N)

20~22AWG/0.5~0.3mm

2

M4

Screw

Brake Resistor

B1, B2

20~22AWG/0.5~0.3mm

2

M4

Screw

SLAVE Circuit

M1, M2

S1, S2

24AWG/0.2mm

2

M1, M2, S1, S2 with shielded

wires

M2 Screw

\

Basic Wiring Diagram

R / L1
S/L2

T/ L 3

N F B

MC

VFD- E/ VFD- EL
Ser ies

BU E

MO TOR

O .L .

U / T 1

V /T 2

W /T 3

+/ B1 P

- N

( )

( )

B1

B2

SA

R / L1
S/ L2

T/ L 3

MC

I M

BR

O .L .

T h e r ma l
O ve r lo a d
R e la y

Su rg e
Ab s or be r

Th e rma l O v er l oa d

R e la y

B r ak e R es i sto r

Bra k e
U ni t

+ P

- N

( )

( )

N o te 1: W h en t he A C dr i ve u se s w i t h D C r ea c to r, p l e as e re fe r to t he w i ri n g d i a gr am i n t h e
VFD - E/E L u s er ma n ua l for w iri n g t er mi n al +( P) of b ra ke u ni t.

N o te 2:

w i re t er mi n al - (N ) to n eu t ra l po i nt o f po w er s y st e m.

DO NOT

N OT E

For safety consideration, install an overload relay between the

brake unit and the brake resistor. In conjunction with the magnetic
contactor (MC) prior to the drive, it can perform complete protection
against abnormality.

The purpose of installing the thermal overload relay is to protect the

brake resistor from damage due to frequent brake, or due to brake
unit keeping operating resulted from unusual high input voltage.
Under such circumstance, just turn off the power to avoid
damaging the brake resistor.

Please refer to “

7 Brake Resistor/Units for the AC Drives

” for the

specification of the thermal overload relay.

]

Wiring Warnings

Do not proceed with wiring while power is applied to the circuit.

The wiring gauge and distance must comply with the local

regulations.

The +(P), -(N) terminals of the AC motor drive (VFD-E/VFD-EL

Series), connected to the brake unit (BUE), must be confirmed for
correct polarity lest the drive and the brake unit be damaged when
power on.

When the brake unit performs brake, the wires connected to +(P),

-(N), B1 and B2 would generate a powerful electromagnetic field
for a moment due to high current passing through. These wires
should be wired separately from other low voltage control circuits
lest they make interference or mis-operation

Wiring distance

V FD - E / VFD -E L
s e ri e s

0. 2 ~ 1. 5k W
115 V / 23 0 /4 6 0V

Ma x . 2M

Ma x . 1M

B R

BU E -

2 00 15
2 00 37
4 00 15
4 00 37

A C M ot or D ri v e

B r ak e U ni t

B r ak e Res is to r

Inflammable solids, gases or liquids must be avoided at the location

where the brake resistor is installed. The brake resistor had better
be installed in individual metallic box with forced air-cooling.

Connect the ground terminal to the Earth Ground. The ground lead

must be at least the same gauge wire as leads +(P), -(N).

Please install the brake resistor with forced air-cooling or the

equivalent when frequent deceleration brake is performed (over
10%ED).

To avoid personal injury, do not connect/disconnect wires or

regulate the setting of the brake unit while power on. Do not touch
the terminals of related wiring and any component on PCB lest
users be damaged by extreme dangerous DC high voltage

We suggest to use ring terminals for main circuit wiring. Make sure

the terminals are fastened before power on.

^

Brake Resistors/Units for Delta VFD

AC Motor Drives Series

Applicable

Motor

Vo

lta

ge

HP kW

Full-load

output
torque

KG-M

Equivalent

brake

resistor for

each AC

drive

Brake Unit
Model and

Quantity

Brake Resistor

Model and

Quantity

Brake

Torque

10%

ED%

Min.

Equivalent

Resistor

Value for
Each AC

Drive

Typical

Thermal

Overload

Relay
Value

1/4 0.2

0.110

200W 250

Ω

BUE20015 1

BR200W250

1

320

200

Ω

2A

1/2 0.4

0.216

200W 250

Ω

BUE20015 1

BR200W250

1

170

100

Ω

3A

1 0.75 0.427

200W 150

Ω

BUE20015 1

BR200W150

1

140

80

Ω

4A

2

1.5

0.849

300W100

Ω

BUE20015 1

BR300W100

1

107

80

Ω

4A

3

2.2

1.262

600W 50

Ω

BUE20037 1

BR300W100

2

150

25

Ω

12A

115/230V

Serie

s

5

3.7

2.080

900W 30

Ω

BUE20037 1

-

-

150

25

Ω

12A

1/2 0.4

0.216

300W 400

Ω

BUE40015 1

BR300W400

1

400

400

Ω

2A

1 0.75 0.427

300W 400

Ω

BUE40015 1

BR300W400

1

200

200

Ω

3A

2

1.5

0.849

400W 300

Ω

BUE40015 1

BR200W150

1

140

160

Ω

4A

3

2.2

1.262

300W 400

Ω

BUE40037 1

BR300W400

2

150

100

Ω

6A

460V

5

3.7

2.080

900W 120

Ω

BUE40037 1

-

-

150

100

Ω

6A

N OT E

“-“ means no Delta product. Please use the brake unit according to

the Equivalent Resistor Value.

The cycle time of brake usage ED% in the above table is 10
seconds.

For the detail applicable models, refer to the following list:

A. BUE20015 is used for

VFD002E11A/11P/11C/21A/21P/21C/23A/23P/23C,
VFD004E11A/11P/11C/21A/21P/21C/23A/23P/23C,
VFD007E21A/21P/21C/23A/23P/23C, VD015E23A/23P/23C,
VFD002EL11A/21A/23A, VFD004EL11A/21A/23A,
VFD007EL11A/21A/23A, VFD015EL21A/23A

B. BUE20037 is used for VFD022EL21A/23A, VFD037EL23A
C. BUE40015 is used for VFD004E43A/43P/43C,

VFD007E43A/43P/43C, VFD015E43A/43C, VFD004EL43A,
VFD007EL43A, VFD015EL43A

D. BUE40037 is used for VFD022EL43A, VFD037EL43A

_

Definition for the Brake Usage ED%

1 00 %

T0

T1

Brake Time

C y cl e Ti me

ED% = T1 /T 0x 1 00 (% )

The definition of the brake usage ED(%) is to assure having enough time
for the brake unit and brake resistor to dissipate the heat generated by
brake. When the brake resistor heats up, the resistance would increase
with temperature, and brake torque would decrease accordingly.

`

The Voltage Settings

The power source of the brake unit is the DC power from the + (P) and - (N)
terminals of the AC motor drive. Therefore, it is an important step to set the
voltage by the input voltage of the AC motor drive before operation. This
setting will affect the voltage level of the brake unit.
Table 1: The voltage selection and operation level of the PN DC voltage

115V/230V

Model

AC Power

Voltage

Brake Start-up

voltage

DC Bus (+(P), -(N))

Voltage

460V Model

AC Power

Voltage

Brake Start-up voltage

DC Bus (+(P), -(N))

Voltage

190Vac 330Vdc 380Vac 660Vdc
200Vac 345Vdc 400Vac 690Vdc
210Vac 360Vdc 420Vac 725Vdc
220Vac 380Vdc 440Vac 760Vdc
230Vac 400Vdc 460Vac 800Vdc

NOTE: Input Power With Tolerance

±

10%

2 2 0

2 4 0 2 3 0

2 1 0 2 0 01 9 0

OFF

ON

22 0

24 023 0

21 020 019 0

OFF

ON

44 0

48 046 0

42 0 40 038 0

OFF

ON

For BU E-2 0015 Seri es /
BU E-200 37 Serie s

Fac tory se t t in g: 190 V

For BU E-4 001 5 Seri es /

BU E-400 37 Series
Fac to ry se t t in g: 380 V

N OT E

Before setting the voltage, make sure the power has been turned

off.

Please set power voltage as the possible highest voltage for

unstable power system. Take 380VAC power system for example.
If the voltage may be up to 410VAC, 415VAC should be selected.

For VFD-E/VFD-EL Series, please set parameter Pr06.00=0 (Over

Voltage Stall Prevention) to disable over-voltage stall prevention, to
ensure stable deceleration characteristic.