2007-11-07
5011649702-BUS2
BUE Series Brake Modules
Instruction Sheet
(cid:88) 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.
(cid:89)
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
3.6 16 1.8 8 Current (A) 10%ED tuptuO gnitaR Brake Start-up
328/345/362/380/400±3V 656/690/725/760/800±6V Voltage (DC)
tupnI gnitaR
DC Voltage 200~400VDC 400~800VDC
Heat Sink Overheat Temperature over +100°C noitcetorP
Power Charge
Blackout until bus (+~-) voltage below 50VDC
Display
Installation Location Indoor (no corrosive gases, metallic dust)
Operating -10℃~+50℃ Temperature
Storage Temperature -20℃~+60℃
Humidity 90%R.H., Non-condensing
tnemnorivnE
3.2 Brake unit NOTE
(cid:132) 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.
(cid:132) 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.
(cid:132) Please refer to “7 Brake Resistor/Units for the AC Drives” for the
specification of the thermal overload relay.
(cid:93) Wiring Warnings
(cid:132) Do not proceed with wiring while power is applied to the circuit.
3.3 DIN Rail Installation (cid:132) The wiring gauge and distance must comply with the local
regulations.
(cid:132) 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.
(cid:132) 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
(cid:132) Wiring distance
VFD-E/VFD-EL 20015
(cid:91) Outline and Wire Gauge 0 . 2s ~e 1ri .e 5s kW Max. 2M BUE-2 4 40 0 00 0 03 1 37 5 7 Max. 1M BR 115V/230/460V
4.1 Outline AC Motor Drive Brake Unit Brake Resistor
Power Input Terminal (cid:132) 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.
Power lamp (cid:132) Connect the ground terminal to the Earth Ground. The ground lead
Brake lamp
Fault lamp must be at least the same gauge wire as leads +(P), -(N).
(cid:132) Please install the brake resistor with forced air-cooling or the 240230220210200190
equivalent when frequent deceleration brake is performed (over
Dip Switch
for Input Voltage Setting 10%ED).
MASTER/SLAVE Switch ONOFF (cid:132) To avoid personal injury, do not connect/disconnect wires or
regulate the setting of the brake unit while power on. Do not touch
Slave output/input the terminals of related wiring and any component on PCB lest Terminals M1：SLAVE output signal + users be damaged by extreme dangerous DC high voltage
M2：SLAVE output signal - (cid:132) We suggest to use ring terminals for main circuit wiring. Make sure
S1：SLAVE input signal +
S2：SLAVE input signal - the terminals are fastened before power on.
9.8m/s2 (1G) under 20Hz Vibration 2m/s2 (0.2G) at 20~50Hz Brake Resistor Terminal (cid:94) Brake Resistors/Units for Delta VFD
Mechanical Configuration Wall-mounted enclosed type IP20 4.2 Wire Gauge for Terminals
AC Motor Drives Series
(cid:90) Dimensions and Installations Circuit T Se yrm mi bn oa
l
l W Ai Wre
G
G /mau mg 2e Terminal
3.1 Brake resistor Power Input +(P), -(N) 20~22AWG/0.5~0.3mm2 M4 Screw Applicable Circuit Motor
Brake Resistor B1, B2 20~22AWG/0.5~0.3mm2 M4 Screw
24AWG/0.2mm2
M1, M2
SLAVE Circuit M1, M2, S1, S2 with shielded M2 Screw
S1, S2 wires
(cid:92) Basic Wiring Diagram
NFB
MC
R/L1 R/L1 U/T1
S/L2 S/L2 V/T2 IM
T/L3 T/L3 W/T3 MOTOR Thermal Overload
O.L. VFD-E/VFD-EL Relay
BR0T 8Y 0P WE
2 00