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YASKAWA AC Drive Option Braking unit, Braking resistor unit Installation Manual BRAKING UNIT CDBR- BRAKING RESISTOR UNIT LKEB- To properly use the product, read this manual thoroughly and retain for easy reference, inspection, and maintenance. Ensure the end user receives this manual.
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Inverters to which the braking resistor unit and braking unit can be con- nected are of the following series: • YASKAWA AC Drive 1000 Series • Varispeed Series Wiring sequence should shut off power to the drive when a braking...
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S To order a copy of this manual, if your copy has been damaged or lost, contact your YASKAWA representative. S YASKAWA is not responsible for any modification of the product made by the user since that will void your guarantee.
NOTES FOR SAFE OPERATION Read this instruction manual thoroughly before installation, operation, maintenance or inspection of the braking unit and the braking resistor unit. In this manual, NOTES FOR SAFE OPERATION are classified as “WARNING” or “CAUTION.” WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury to personnel.
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WIRING WARNING (Ref. page) • Only commence wiring after verifying that the power sup- ply is turned OFF. Failure to observe this warning can result in an electrical shock or a fire. • High voltage exists at all terminals of braking unit and braking resistor unit.
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CAUTION (Ref. page) S Verify that the rated voltage of the braking unit and the braking resistor unit coincides with the AC power supply voltage. Failure to observe this caution can result in personal injury or a fire. S Do not perform a withstand voltage test of the braking unit and braking resistor unit.
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OPERATION WARNING (Ref. page) S Only turn ON the input power supply after replacing the front cover. Do not remove the cover while current is flowing. Failure to observe this warning can result in an electrical shock. CAUTION (Ref. page) S Never touch the heatsink or discharging resistor since the temperature is very high.
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CAUTION (Ref. page) S The control PC board employs CMOS ICs. Do not touch the CMOS elements. They are easily damaged by static electricity. S Do not connect or disconnect wires or connectors while power is applied to the circuit. Failure to observe this caution can result in personal injury.
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WARNING INDICATION A warning label is displayed on the front cover of the braking unit, as shown below. Follow these instructions when handling the braking unit and the braking resistor unit. Warning Indication Example of Braking Unit Model CDBR−4045B...
The braking resistor unit and braking unit have been put through severe tests at the factory before shipment. After unpacking, however, check and see the follow- ing. If any malfunctions are found, contact your YASKAWA representative. • Their nameplate data meet your requirements.
2 INSTALLATION 2.1 LOCATION If the units are temporarily stored or machine stops for an extended length of time, the following precautions should be taken. Store the units at pollution level 2 or less (UL standard) and under the following conditions. •...
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2 INSTALLATION • Install the units in the directions shown in Figs. 1 to 8. There will be no problem if they are installed vertically. 4−M4 MTG HOLE 2.83 (72) 2.73 (66.5) 1.5 (38) 1.5 (38) 4.51 (114.5) 5.04 (128) 1.18 (30) 1.18 (30) OR MORE...
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4−M6 3.94 (100) MTG HOLE MAIN CIRCUIT TERMINAL M4 2.30 3−LEAD WIRE (58.5) OUTLET 1.10 (28) DIA RUBBER BUSH 1.97 (50) 3.94 (100) 6.57 (167) 5.51 (140) 1.18 (30) 1.18 (30) OR MORE OR MORE Fig. 2 Braking Unit Dimensions in inches (mm) CDBR−5037B...
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2 INSTALLATION 4−M6 5.51 (140) MTG HOLE MAIN CIRCUIT TERMINAL M5 WIRE OUTLET 1.10 (28) 3.86 (98) DIA RUBBER BUSH 2−LEAD WIRE OUTLET 1.38 (35) DIA RUBBER BUSH 3.94 (100) 4.37 (111) 2.32 1.97 (50) (59) 6.14 (156) 5.51 (140) 7.09 (180) 7.87 (200) 1.18 (30)
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4−M6 5.51 (140) MTG HOLE MAIN CIRCUIT WIRE OUTLET 1.10 (28) TERMINAL M6 4.09 DIA RUBBER BUSH (104) 2−LEAD WIRE OUTLET 1.38 (35) DIA RUBBER BUSH 3.94 (100) 4.37 (111) 2.32 1.97 (50) (59) 5.51 (140) 6.14 (156) 7.09 (180) 7.87 (200) 1.18 (30) 1.18 (30)
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2. INSTALLATION 4−M6 7.09 (180) MTG HOLE MAIN CIRCUIT WIRE OUTLET 1.10 (28) TERMINAL M5 3.86 (98) DIA RUBBER BUSH 2−LEAD WIRE OUTLET 1.38 (35) DIA RUBBER BUSH 5.45 (138.5) 4.37 (111) 1.97 (50) 2.70 (68.5) 7.09 (180) 6.14 (156) 8.66 (220) 7.87 (200) 1.18 (30)
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4−M6 8.27 (210) MTG HOLE MAIN CIRCUIT WIRE OUTLET 1.10 (28) TERMINAL M6 4.09 DIA RUBBER BUSH (104) 2−LEAD WIRE OUTLET 1.38 (35) DIA RUBBER BUSH 6.16 (156.5) 4.37 (111) 1.97 (50) 4.67 (118.5) 8.27 (210) 6.14 (156) 9.84 (250) 7.87 (200) 1.18 (30) 1.18 (30)
2.3 REPLACEMENT OF CONVENTIONAL BRAKING UNITS WITH NEW UNITS To replace conventional braking units (models CDBR-2015, -2022, -4030, -4045) with new units (CDBR-2015B, -2015C, -2022B, -2022C, -4030B, -4045B), an exclusive-use attachment is required. Contact your YASKAWA representative. 4−M6 MTG HOLE ATTACHMENT 0.28(7) 3.94 (100)
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The main circuit terminal symbols are different between conventional models and new models. Refer to the following table. Table 1 Main Circuit Terminal Symbols New Models Conventional Models Example: CDBR-2015B, Example: CDBR-2015 -2015C...
3 WIRING 3 WIRING 3.1 REMOVING AND REPLACING THE COVERS OF THE BRAKING UNIT (MODELS CDBR-2015B, -2015C, -2022B, -2022C,-4030B, -4045B) Romoving and Replacing the Terminal Cover For removing, grasp the terminal cover at on borh sides and then lift in the direciton of .
3.2 SECTION NAMES Figs. 10, 11 and 12 show appearance and each section name of braking unit and braking resistor unit respectively. Thermal overload relay protects the braking resistor unit for models LKEB-20P7 to -27P5 and -40P7 to -4015. Thermal protector protects the braking resistor unit for models LKEB-2011 to -2022 and -4018 to -4045.
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3 WIRING Top Side Thermal Overload Relay (Automatically Reset) Control Circuit Terminals B P 1 2 Lead Wire Outlet Bottom Side (Rubber Bush) Fig. 11 Braking Resistor Unit Model LKEB-20P7 SPEC: B (Front Cover Removed) Note: 1. External terminals for SPEC: B models LKEB- 20P7 and 40P7 are located up to 20 mm further inside the unit when compared to the same models for SPEC: A.
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Resistor Thermal Overload Protector Lead Wire Outlet Control Circuit Terminals (Rubber Bush) B, P, 1, 2 Fig. 12 Braking Resistor Unit Model LKEB−2022 (Front Cover Removed)
3.4 WIRING PRECAUTIONS Wiring Leading-in Method Lead in the wire through the knockout hole on the unit bottom. Since the knockout hole is provided with a rubber bush, cut the rubber bush central crosswise with a blade and lead the wire through. Separation from Signal Lines Since strong noise component is superimposed on the braking resistor unit and braking unit wiring, separate the units from signal lines which are weak...
Be sure to connect braking resistors or braking resistor units to the braking units. Connect only braking resistors or Braking Resistor Units (LKEB-XXXX) to Braking Units. 1. If using another braking resistor instead of YASKAWA braking resistor unit, wiring sequence should shut off power to the drive NOTE...
4. OPERATION OPERATION 4.1 ADJUSTMENT The braking resistor unit and braking unit do not have to be adjusted. Especially, do not readjust the braking unit except in the case described in Par. 4.2, “Power Supply Voltage Selection Connector Setting.” 4.2 POWER SUPPLY VOLTAGE SELECTION CON- NECTOR SETTING It may be necessary to select power supply voltage selection connector for braking unit according to main circuit power supply type.
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200 V class 200 V 208 V 220 V 230 V 400 V class 380 V 400 V 415 V 440 V 460 V Fig. 21 Braking Unit Power Supply Voltage Selection (Models CDBR-2015B, -2015C, -2022B, -2022C, -4030B, -4045B, Terminal Cover and Indicating Cover Removed)
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4 OPERATION class class 200 V 400 V 380 V 200 V 400 V 208 V 415 V 220 V 440 V 230 V 460 V class 575 V 500 V 575 V Fig. 22 Braking Unit Power Supply Voltage Selection (Models CDBR-2045B, -2110B, -4090B, -5037B, -5110B, -5300B, Indicating Cover Removed) Table 3 Power Supply Voltage Selection Connector and Braking Start Voltage...
4.3 MASTER/SLAVE SELECTION CONNECTOR SETTING Selection Connector Setting MASTER side is selected prior to shipment. Use the units without changing the setting. SLAVE side is selected when more than one braking unit is combined to use and braking start levels must coincide. Refer to Par. 4.4, “Parallel Connection of Brak- ing Unit”...
5 TROUBLESHOOTING Only authorized personnel should be permitted to perform maintenance and inspections or replace parts. Fault Status Cause Corrective Action • Without braking unit Replace the inverter. Inverter built-in main circuit dis- charging transistor short circuited Braking resistor • With braking unit unit overload relay (or thermal over- Replace the unit.
6 SPECIFICATIONS 6 SPECIFICATIONS 6.1 BRAKING UNIT AND BRAKING RESISTOR UNIT APPLICATION LIST The applicable braking unit and braking resistor unit models differ depending on the inverter model. Refer to the catalog of the relevant inverter. Example: 200-V Class Inverter Model CIMR-G5 Inverter Braking Unit Braking Resistor Unit...
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Example: 400−V Class Inverter Model CIMR−G5 Approx. Inverter Braking Unit Braking Resistor Unit Braking Braking Max Applicable Model Model Torque Resistor Spec. Unit Unit Motor Capacity (10%ED) (CDBR (LKEB Q’ty Q’ty (per unit) HP(kW) − j) − j) 0.5 (0.4) −...
6 SPECIFICATIONS 6.2 BRAKING UNIT FOR 575V CLASS APPLICATION LIST Example: 575-V Class Inverter Model CIMR-G5 Inverter Braking Unit Braking Resistor Unit Approx. Braking Max Applicable Torque Model Motor Capacity Unit Q’ty Resistor Spec. (10%ED) (CDBR- ) HP(kW) 5 (3.7) –...
6.3 LIST OF APPLICABLE/NOT APPLICABLE COMBINA- TIONS WITH CONVENTIONAL MODELS (VS−616HII/ H3, VS−616GII/G3, VS−676) Applicable/ Conventional Braking Braking Re- Not Appli- Remarks Model Unit sistor Unit cable VS−616HII/H3 Model See connection exam- LKEB−20P7 VS−616GII/G3 Applicable − ples of Fig 14. etc.
6 SPECIFICATIONS 6.6 MODELS AND CODE NOS. OF BRAKING UNIT AND BRAKING RESISTOR UNIT Braking Unit Inverter Model Code No. Voltage HP (kW) CDBR-2015B 72600-R2150B 20 (15) CDBR-2015C 72600-R2150C CDBR-2022B 72600-R2220B 200 to 30 (22) 230 V CDBR-2022C 72600-R2220C 60 (45) CDBR-2045B 72600-R2450B 150 (110)
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Phone: 81-3-5402-4502 Fax: 81-3-5402-4580 http://www.yaskawa.co.jp YASKAWA AMERICA, INC. 2121 Norman Drive South, Waukegan, IL 60085, U.S.A. Phone: 1-800-YASKAWA (927-5292) or 1-847-887-7000 Fax: 1-847-887-7310 http://www.yaskawa.com YASKAWA ELÉTRICO DO BRASIL LTDA. Avenida Piraporinha 777, Diadema, São Paulo, 09950-000, Brasil Phone: 55-11-3585-1100 Fax: 55-11-3585-1187 http://www.yaskawa.com.br...
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