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SED2 Drive Applications

SED2 Drive Applications. Simple Applications. INPUTS. OUTPUTS. 0-10 V. Relay 1 -> Fault. On. Fault Reset. Relay 2 -> Run. ACTION. Standard I/O. 0-10 V 2-10 V 0-20 mA 4-20 mA Programmable functions. 0-10 V 2-10 V 0-20 mA 4-20 mA Ni 1000. SED2. 2 x analog inputs.

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SED2 Drive Applications

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  1. SED2 Drive Applications

  2. Simple Applications INPUTS OUTPUTS 0-10 V Relay 1-> Fault On FaultReset Relay 2-> Run ACTION

  3. Standard I/O 0-10 V 2-10 V 0-20 mA 4-20 mA Programmablefunctions 0-10 V 2-10 V 0-20 mA 4-20 mA Ni 1000 SED2 2 x analog inputs 2 x analog outputs Insulated Programmablefunctions PNP or NPN (sink/source) Form C contacts Programmablefunctions 30VDC, 5A 240VAC, 2A 6 x digital inputs 2 x digital outputs P1 N2 USS LonWorks (opt.) Modbus (opt.) RS-485 1 x motor PTC

  4. 100 % 0 % SP=25°C T Application - Air Temperature Control, Cooling • Function Description • Exhaust fan – • Air flow monitoring (External, only alarm) • -Room temperature control, cooling • Sensor Ni 1000 • -Set point +25°C • -Thermostat for switch on/off Digital Input Digital Input Analog Input

  5. Solution: PID Controller Direct Sensor Connection Ni 1000 Temperature Sensor Drive Based PID w/ Hibernation Mode Ni 1000Sensor

  6. Ni 1000 I/O SED2 Ni 1000 Analog input 1 Safety Input Digital input

  7. P1 P2 P3 P1 100 % P3 P1 P2 P1 0 % P SP=2.5 bar Application - Water Pressure Control • Function Description • Constant pressure (P) • Pump Logic Controller • (B&G Buster package) • P1, P2 and P3 on-off with motor • starters

  8. 100% 1. 2. 3. P Solution: Built-In Pump Cascading This function allows for control of up to two additional, cascaded pumps. With the two relay output contacts, the SED2 performs the cascading logic without additional controllers or I/O cards. -No separate controller required -Energy savings with SED2 Pressure demand Cascade

  9. Pump Staging I/O SED2 0-10 volt Pressure Transmitter 2 x analog input 1 On Command 1 safety input 2nd stage pump 3rd stage pump 6 x digital input 2 x digital output

  10. 100 % 0 % SP=25°C T Application – Temp. Control + Belt Monitoring • Function Description • Exhaust fan – • Air flow monitoring (External, only alarm) • -Room temperature control, cooling • Sensor Ni 1000 • -Set point +25°C • -Thermostat for switch on/off • Belt monitoring

  11. Torque Speed Solution: V-Belt Monitoring The SED2 ensures reliable V-belt monitoring without the expense of an external sensor. Both speed and torque are compared to a user-defined tolerance band. If the parameters do not match, the drive trips in the event of V-belt failure. Also, the SED2 is able to monitor a pulse sequence from the sensor detecting rotation of the fan shaft.

  12. 100 % 0 % SP=2.5 IWG Application – Temp. Control + Duct Pressure Control • Function Description • Exhaust fan = Like air temperature control example • -Air flow monitoring (External, only alarm) • -Static pressure control • 0-10v, 1-4inch wg • -Set point 2.5 inch • -Thermostat for switch on/off

  13. Pressure Speed Reduction Solution: Duct Pressure Control • 0 – 10 Volt standard output signal • 1% Accuracy over full scale • Available in uni-directional ½”, 1”, 2” and 5” wc • Available in bi-directional ¼” wc.

  14. Static Pressure Control I/O SED2 0-10 volt Pressure transmitter 2 x analog input 1 On Command 1 Safety Static Pressure Switch 6 x digital input

  15. Bundled Package The SED2 is equipped with TEC application 2722 Which includes 99 subpoints for monitoring and control (See Attached Document for TEC Schedule)

  16. Control Board

  17. Digital Inputs Terminals Parameter Default 1 5 P0701=1 ON right 2 6 P0702=12 Reverse 3 7 P07a03=9 Fault Acknowledge  4 8 P0704=15 Fixed Frequency 5 16 P0705=15 Fixed Frequency 6 17 P0706=15 Fixed Frequency Digital Outputs Terminals Parameter Default Operation 1 18,19,20 P0731 Drive fault 2 23,24,25 P0732 Drive running Analog Inputs * Terminals Parameter Default Operation 1 3,4 P0756(0) 0-10V dc 2 10,11 P0756(1) 0-10V dc Analog Outputs Terminals Parameter Default Operation 1 12,13 P0771(0) Frequency 2 26,27 P0771(1) Frequency Control Terminals * Can also be configured as NI1000 inputs.

  18. Mounting & Installation Considerations • Type of environment - What is the location like? Does it fall within the drives operating ranges for altitude & temperature • Type of power - Line and load reactors reduce voltage. If voltage is already low, using them could have an effect on performance. - Does the power system supply at least 1% impedance? • Type of motor - Is it VFD rated? - Distance from the drive? - HP of the motors? - Age of the motor?

  19. Enclosure Ratings - Drive & Drive W/Bypass • IP 20 • No NEMA equivalent, needs to be mounted in another enclosure • Generally used in US for OEM applications • Our standard unit as it comes from the factory • IP 21 • NEMA 1, protects operator from electrical hazard and protects the equipment from falling material • Our standard unit when fitted with gland plate and dust cover • IP 54 • No direct US equivalent, but exceeds NEMA 12 • NEMA 3R • Water tight, limited need in drive applications

  20. Mounting & Installation Considerations Line Reactor Installation • Not recommended to reduce Harmonics • Can be ordered with or without an enclosure • Installed to protect the drive from: • Power spikes or sags caused from transfer to generator • Poor heavy switch load on the same load center

  21. Mounting & Installation Considerations Load Reactor Installation • Long wire leads from drive to motor • As wire length from drive to motor increases, the voltage spike increases • Can be ordered with or without an enclosure • Installed to protect the motor from: • Spikes caused from the drive switching frequencies or IGBT

  22. Mounting & Installation Considerations Line and Load Reactor Installation • Always use Siemens Building Technologies specified reactor • For retro-fit applications • REMOVE AND REPLACE EXISTING REACTORS WITH SBT SPECIFIED REACTORS

  23. Siemens SED2 VFD Advantages • Low harmonics design • Small enclosure size • Many standard features • Reduces operating cost • Low power losses/high efficiency • Minimal effect on customer power • Wide power range – from ½ to 125 HP

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