Download
Share
Print this page
Power Electronics B150 Documentation
  1. Manuals
  2. Brands
  3. Power Electronics Manuals
  4. DC Drives
  5. B150 Series
  6. Documentation
Power Electronics B150 Documentation

Power Electronics B150 Documentation

Dynamic braking unit
Hide thumbs

Advertisement

Quick Links

Download this manual
B
150
D
y
n
amic Brake
B150 Dynamic Braking Unit
Braking Documentation

Advertisement

loading
Need help?

Need help?

Do you have a question about the B150 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Power Electronics B150

Summary of Contents for Power Electronics B150

  • Page 1 Brake B150 Dynamic Braking Unit Braking Documentation...
  • Page 3 B150 Dynamic Braking Unit Braking Documentation Edition: March 2012 SD70DF01BI Rev. B...
  • Page 4 B150 – Dynamic Braking Unit POWER ELECTRONICS...
  • Page 5 B150 – Dynamic Braking Unit POWER ELECTRONICS SAFETY SYMBOLS Always follow safety instructions to prevent accidents and potential hazards from occurring. This symbol means improper operation may results in serious personal injury or death. Identifies shock hazards under certain conditions.
  • Page 6 B150 – Dynamic Braking Unit POWER ELECTRONICS SAFETY SYMBOLS...
  • Page 7 2.1. Electrical Data ................15 3. INSTALLATION AND CONNECTION ............16 3.1. Installation of B150 Unit ............... 16 3.2. Power and Control Connections for B150 Unit ......18 3.3. Operating Mode Setting ............... 27 3.4. Local Settings and Indications ............. 33 3.5.
  • Page 8 B150 – Dynamic Braking Unit POWER ELECTRONICS INDEX...

  • Page 9: Safety Instructions

    B150 – Dynamic Braking Unit POWER ELECTRONICS SAFETY INSTRUCTIONS IMPORTANT!  Safety instructions showed in this manual are useful to teach user how to use the product in a correct and safety way with the purpose of preventing possible personal injuries or property damages.
  • Page 10 B150 – Dynamic Braking Unit POWER ELECTRONICS Wiring and periodic inspections should be performed at least 10 minutes after disconnecting the input power of the equipment which is going to be connected with this braking unit and after checking the DC Link voltage is discharged with a meter (below 30VDC).
  • Page 11  Before operating the equipment, read this manual thoroughly to gain and understanding of the unit. If any doubt exists then please contact POWER ELECTRONICS, (902 40 20 70 / +34 96 136 65 57) or your nearest agent. ...
  • Page 12 It is responsible of the safety and correct installation of the system.  The access plate of the B150 unit and its cover must be correctly installed to meet the specified protection degree IP20. SAFETY INSTRUCTIONS...
  • Page 13 Dynamic brake due to overvoltage pulses.  The power connection between the B150 and the resistors should be done with unipolar twisted pair with a turn ratio of 200mm. The cable length should be less than 10 m otherwise the cable inductance could damage the Dynamic brake due to overvoltage pulses.
  • Page 14 B150 – Dynamic Braking Unit POWER ELECTRONICS OPERATION PRECAUTIONS WITH SD700 DRIVE  When the Auto Restart function is enabled, keep clear of driven equipment, as the motor will restart suddenly after a fault is reset.  The “STOP / RESET” key on the keypad is active only if the appropriate function setting has been made.
  • Page 15 ...). The dynamic braking unit turns this regenerative energy into heat through the dynamic braking resistors, so keeping the motor control. 1. Leds for status indication. Unit reset. 2. Power and Control Connections. Figure 1.1 Description of the B150 Braking Unit INTRODUCTION...
  • Page 16 B150 slaves in order to provide an extra-braking capacity. B150 have a safety relay „no fault‟, that connected to one SD700 digital input and configured as a fault, allows knowing and controlling the fault status of the brake.

  • Page 17: Technical Characteristics

    B150 – Dynamic Braking Unit POWER ELECTRONICS 2. TECHNICAL CHARACTERISTICS 2.1. Electrical Data DYNAMIC BRAKE B150 B150.2 B150 B150.6 Using voltage for brake 230VAC, 400VAC, 690VAC (jumpers) 500VAC, Maximum switch current 300A 200A (R=5.75 ELECTRICAL (R=2.4 @ 735VDC) @ 1155VDC)

  • Page 18: Installation And Connection

    B150 – Dynamic Braking Unit POWER ELECTRONICS 3. INSTALLATION AND CONNECTION 3.1. Installation of B150 Unit The B150 has compact dimensions that make easy the installation and connection. CAUTION The variable speed drives on where B150 dynamic braking units are connected operate with high voltage.
  • Page 19 Avoid cooling the B150 unit with the heated air coming from the resistors. Otherwise the B150 could suffer overheating problems. If the B150 unit is installed in a cabinet, make sure the available cooling is enough in order to internal air does not get hot and does not exceed the specified temperature.
  • Page 20 POWER ELECTRONICS Figure 3.2 Minimum recommended distances for the installation 3.2. Power and Control Connections for B150 Unit Some applications require a mechanical brake as safety measure in case of dynamic braking failure. The output of the „No Fault‟ relay, can be used to operate the mechanical brake through a correct wiring.
  • Page 21 B150 – Dynamic Braking Unit POWER ELECTRONICS The following image shows where the power (plates) and control terminals are located: Figure 3.3 Image of the power and control terminals of B150 Unit INSTALLATION AND CONNECTION...
  • Page 22 B150 – Dynamic Braking Unit POWER ELECTRONICS 3.2.1. Description of Power Terminals for B150 Unit The access to the power terminals of the B150 unit is from the bottom of the equipment. Figure 3.4 Detail of the power terminals of B150 Unit...
  • Page 23 It is connected to the earth terminal of the drive. (Earth) 3.2.2. Description of the Control Terminals for B150 Unit The control terminals are also accessible from the bottom of the unit. (See figure 3.3). Figure 3.5 Image of the control terminals of B150 Unit INSTALLATION AND CONNECTION...
  • Page 24 B150 – Dynamic Braking Unit POWER ELECTRONICS CONNECTOR DESCRIPTION Terminals for Relay ‘No Fault’. Terminal Description Output of relay ‘No Fault’. NO contact. J101 Output of relay ‘No Fault’. Common. Output of relay ‘No Fault’. NC contact. Connection terminals of digital input for External Fault control.
  • Page 25 Make sure the power supply has been disconnected and let at least 10 minutes elapse in order to guarantee the DC bus has been discharged, before installing B150 Braking Unit. Otherwise, you may get an electric shock. It is recommended to use shielded cable to connect all control signals in order to meet EMC compliance.
  • Page 26 B150 – Dynamic Braking Unit POWER ELECTRONICS Figure 3.6 Connections between SD700 and Braking Unit B150 Figure 3.7 Unipolar twisted cable with a turn ratio of 200 mm INSTALLATION AND CONNECTION...
  • Page 27 Terminals of Braking Resistor It is recommended to use braking resistors equipped with thermal sensors. Connect it to the terminals 4 and 5 of the B150 braking unit enabled for this purpose. See figure 3.6. INSTALLATION AND CONNECTION...
  • Page 28 Terminals to connect the resistor to the dynamic braking unit. Connect the terminals of the braking resistor to the B1, B2 terminals R EXT 1 / +HVDC and R EXT 2 of the B150 unit. Thermal sensor of the resistor. The status of which will change according to the temperature.
  • Page 29 3.3.1. Master Mode Selection In this mode, the brake is auto-controlled. For this: o Select Master Mode through the jumper M. Figure 3.8 Connections between SD700 and Braking Unit B150 – Master Mode INSTALLATION AND CONNECTION...
  • Page 30 Note: Regarding the power connections, connect the terminals +HVDC and –HVDC of the SD700 drive to the terminals R EXT 1 +HVDC and –HVDC respectively of all used braking units B150. Also, the ground terminals must be connected between them. See following figure.
  • Page 31 B150 – Dynamic Braking Unit POWER ELECTRONICS Figure 3.9 Connection B150 in Master Mode – Connection of brakes in cascade INSTALLATION AND CONNECTION...
  • Page 32 7 of the braking unit connector. Also, connect the pin 2 of the optional board to the pin 6 of the braking unit. Figure 3.10 Connections between SD700 and Braking Unit B150 – Slave Mode INSTALLATION AND CONNECTION...
  • Page 33 Note: Regarding the power connections, connect the terminals +HVDC and –HVDC of the SD700 drive to the terminals R EXT 1 +HVDC and –HVDC respectively of all used braking units B150. Also, the ground terminals must be connected between them. See following figure.
  • Page 34 B150 – Dynamic Braking Unit POWER ELECTRONICS Figure 3.11 Connection B150 in Slave Mode – Connection of brakes in cascade INSTALLATION AND CONNECTION...
  • Page 35 POWER ELECTRONICS 3.4. Local Settings and Indications The B150 braking unit has several leds located in front side of the equipment. They provide user with information about the operating status of the braking unit. Below them, there are a potentiometer for the setting of the activating voltage of the brake and a reset push- button.
  • Page 36  Desaturation of the IGBT  Over temperature of the heat sink If the B150 unit trips out for any reason, the dynamic braking effect will be lost. Under this circumstance, certain loads may require an additional or a safety mechanical braking.
  • Page 37 POWER ELECTRONICS 3.7. Resistor Thermal Protection A failure of the B150 unit may cause the resistors to be turned ON permanently (open circuit). Unless preventive actions are taken, the power generated can easily lead to the destruction of low duty cycle resistors or fire.
  • Page 38 POWER ELECTRONICS 4. RECOMMENDATIONS FOR APPLICATIONS One of the most common applications for the B150 is to aid in the rapid deceleration of loads that have a high level of inertia (for example, large fans or centrifuges pumps). In this application type, when the drive begins to decelerate the load, the slip speed of the motor can become negative.
  • Page 39 Therefore, select a dynamic braking resistor with a Peak Power rating greater than Peak Instantaneous Regenerated Power (P Otherwise, do not select a dynamic braking resistor such that the B150 maximum switch current of 300A is exceeded. RECOMMENDATIONS FOR APPLICATIONS...
  • Page 40 B150 – Dynamic Braking Unit POWER ELECTRONICS 4.1.2. Short Term Average Regenerated Power (P This is the average power generated by the load over a short term repetitive cycle. Ensure that the resistor has a continuous power rating greater than the Short Term Average Regenerated Power ) of the load.
  • Page 41 B150 – Dynamic Braking Unit POWER ELECTRONICS 5. PARAMETER SETTING FOR SD700 SERIES In the SD700, there is a parameter which must be configured when the use of tan external dynamic braking unit is required. This parameter is included in group G17.

  • Page 42: Troubleshooting And Maintenance

    6.1. Troubleshooting It is recommended to connect the thermal sensor of the resistor to the B150 unit, additionally the external relay should be connected to the SD700 drive and configured as an external fault. That way any B150 failure will cause an emergency stop in the drive.
  • Page 43 It is recommended to check the heat sink of the B150 unit periodically and, if it is required, clean it with compressed air in order to prevent the obstruction of the slots. It is also recommended to clean with compressed air the braking resistor, once it is guaranteed that the resistor is cold.
  • Page 44 DC Bus Voltage done by the control board of the drive. This optional board converts the dynamic braking unit B150 into one slave unit of the drive. Figure 7.1 Optional board SD7DB This optional board is provided with two connectors: J1 and J2.
  • Page 45 B150 – Dynamic Braking Unit POWER ELECTRONICS The connector J2 offers to the user the terminals that must be wired to the connector J405 of the dynamic braking unit. As has already explained, pin 1 of J2 must be wired with pin 7 of J405. The pin 2 of J2 must be connected with pin 6 of J405.
  • Page 46 Power Electronics Asia Ltd • 20/F Winbase Centre • 208 Queen‟s Road Central • HONG KONG • R.P. CHINA Power Electronics Asia HQ Co • Room #305, SK Hub Primo Building • 953-1, Dokok- dong, Gangnam-gu • 135-270 • SEOUL • KOREA KOREA Tel.
  • Page 48 www.power-electronics.com...

This manual is also suitable for:

B150.6B150.2