■ 产品简述

当传动应用中需要电机快速或精确的减速时，为了获得所需的制动转矩，并避免在减速过程中产生过高的泵升电压影响设备的安全运行，应当使用NS-CDBR系列制动单元。
When fast or precise deceleration of the motor is required in the drive application, the NS-CDBR brake units should be used in order to obtain the required braking torque and to avoid excessive pump rise voltage during deceleration affecting the safe operation of the equipment.
所有的NS-CDBR产品，均来自高度可靠的设计和精良的制造技术，NS-CDBR的每一件产品都能发挥最大的效能，同时获得良好的制动效果。NS-CDBR系列重载型制动单元电压、功率范围：220V-690V；15KW-400KW。
NS-CDBR products with highly reliable design and sophisticated manufacturing technology, NS-CDBR each product can maximize performance, while getting a good braking effect.NS-CDBR series of heavy-duty braking unit voltage, power range: 220V-690V; 15KW-400KW.

■ 产品特点

1、应用性：适合于各种进口或者国产低压变频器能耗制动（三相异步.永磁同步电机）
Utity： Suitable for a variety of imported or domestic low-voltage drive energy consumption brake (three-phase asynchronous. Permanent magnet synchronous motor)
2、安全性：采用先进的电力电子技术和高性能的IGBT作为开关器件，电压自动跟踪，品质可靠安全，特殊设计，可使用 普通电阻，不必选择无感电阻器。
Security： The use of advanced power electronics and high-performance IGBT as a switching device, voltage automatic tracking, reliable quality and safety, special design, the use of ordinary resistance, no choice no sense resistor.
3、经济性：性价比高，品质可与同类进口产品相媲美，功率齐全，每个功率范围都有单台制动单元选用也可并联使用。
Efficiency：cost-effective, comparable quality with similar imported products, power is complete, each power range has a single brake unit selection, but also can be used in parallel.

■ 性能参数

制动方式：电压跟踪方式
Braking method : Voltage tracking method
反应时间：1ms以下，有多重噪声过滤算法
Response time ：1ms below, there are multiple noise filtering algorithm
电网电压：如380Vac,45-66HZ
Grid voltage ：such as 380Vac, 45-66HZ
动作电压：690Vdc，误差±2V
Action voltage ：690Vdc, error ± 2V
滞环电压：10V
Hysteresis voltage ：10V
保护/散热：过热，过电流，短路/内置散热风扇
Protection / cooling：overheating, overcurrent, short circuit / built-in cooling fan
噪声滤波：有
Noise filtering：Yes
防护等级：IP20
Protection level: IP20

■ 产品识别码

■ 产品尺寸图

■ 制动单元与变频器间的接线如下图所示

■ 制动电阻的选择

NS-CDBR能耗制动单元 380伏电网匹配电阻推荐表(电阻值决定制动力矩，电阻功率取决于制动频率Kc；下表制动力矩约100% 145%，Kc=10% 20%时的电阻功率)
NS-CDBR Energy Consumption Braking Unit 380 Volt Grid Matching Resistance Recommended Table (The resistance determines the braking torque. The resistance depends on the braking frequency Kc. The braking resistance in the following table is about 100% 145%, Kc = 10% and 20% power)
ED10%.起始斩波电压VDC=760适用普通机械设备，10层以下电梯选用，起重机大小车选用。
ED10%. Initial chopping voltage VDC = 760 For ordinary machinery and equipment, elevator use less than 10 floors, the use of cranes car.

ED20%.起始斩波电压VDC=760适用中等机械设备，20层以下电梯选用，起重机大小车选用。 

ED20%. Initial chopping voltage VDC = 760 For medium-sized machinery and equipment,elevator use below 20 floors, crane car selection.