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Siemens SED2 VFD NEMA Operating Instructions Manual

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SED2 VFD NEMA Type 3R and 3R
Harsh Environment (3RHE) Bypass
Operating Instructions
Item Number 125-3377, Rev. FA

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  • Page 1 SED2 VFD NEMA Type 3R and 3R Harsh Environment (3RHE) Bypass Operating Instructions Item Number 125-3377, Rev. FA...
  • Page 3 SED2 VFD NEMA Type 3R and Type 3R Harsh Environment (3RHE) Bypass Operating Instructions...
  • Page 5 WARNING The Siemens Building Technologies SED2 Variable Frequency Drives are shipped without EMC line filters. (The EMC filter is most commonly used in Europe.) Where local codes or customer/installation requirements dictate, separately orderable Class A line filters are available. More stringent Class B line filters are also available for most models.

  • Page 7: Table Of Contents

    Where To Send Comments ..................1   Reference Documents ....................2     Safety Instructions ......................3   SED2 VFD NEMA Type 3R/3RHE Bypass Overview ..........4   NEMA Type 3R/3RHE Bypass Operation Overview ........... 6   Installation ........................8 Environmental Conditions ..................8  ...

  • Page 9: How To Use This Manual

    Safety Instructions provides general guidelines for your safety and to prevent equipment damage. • SED2 VFD NEMA Type 3R and Type 3R Harsh Environment (3RHE) Bypass Overview describes the function and components. • Operation Overview describes the operating modes of the NEMA Type 3R/3RHE Bypass.

  • Page 10: Reference Documents

    SED2 VFD Parameter Reference Guide (125-3214) • SED2 Variable Frequency Drives Submittal Sheet (154-042) • SED2 VFD NEMA Type 3R and Type 3R Harsh Environment (3RHE) Bypass Submittal Sheet (154-062) • SED2 VFD Conventional Bypass Option Submittal Sheet (154-044) Siemens Building Technologies, Inc.

  • Page 11: Safety Instructions

    • Prevent the general public from accessing or approaching this equipment. Keep these Operating Instructions near the equipment and available to all users. NOTE: Siemens Building Technologies, Inc.

  • Page 12: Sed2 Vfd Nema Type 3R/3Rhe Bypass Overview

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions SED2 VFD NEMA Type 3R/3RHE Bypass Overview During normal operation of a NEMA Type 3R/3RHE Bypass in a typical application, the input and output contactors close and the SED2 operates the motor (Figure 1). The bypass contactor provides the ability to operate the motor on utility power and eliminate the SED2 from the motor control circuit.
  • Page 13 SED2 VFD NEMA Type 3R/3RHE Bypass Overview OUTPUT CONTACTOR RELAYS INPUT CONTACTOR CONTROL TRANSFORMER CONTROL TERMINAL BLOCK LINE REACTOR OUTPUT CONTACTOR CONTROL TRANSFORMER BYPASS CONTACTOR RELAYS CONTROL TERMINAL BLOCK SED2 VFD INPUT CONTACTOR LINE REACTOR POWER FUSES GROMMETS MOTOR OVERLOAD...

  • Page 14: Nema Type 3R/3Rhe Bypass Operation Overview

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions NEMA Type 3R/3RHE Bypass Operation Overview See Figure 6 for NEMA Type 3R/3RHE Bypass control terminals. NOTE: • Drive Mode − Drive output contactor closes (and drive input contactor if supplied). The motor is controlled by the SED2 output.
  • Page 15 All calls to open the bypass contactor are ignored except the opening of this contact or the removal of main power. WARNING: All calls to open the bypass include ignoring the tripping of the mechanical overload and opening of the safety input. Perform this procedure with extreme care. Siemens Building Technologies, Inc.

  • Page 16: Installation

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Installation Environmental Conditions NEMA Type 3R/3RHE enclosed bypasses are manufactured for outdoor locations, not in direct sunlight. The 3R rating provides a degree of protection to the enclosed VFD and electrical control components from falling rain, snow, and from damage caused by the formation of ice.

  • Page 17: Dimensions And Weights

    Table 2. Type 3RHE Enclosure Approximate Weights Frame Size Wt. Lb (kg) Frame Size Wt. Lb (kg) 130 (59) 150 (68) 300 (136) 220 (100 550 (249) 330 (150) Exact weight will be affected by actual horsepower/voltage and selected power options NOTE: Siemens Building Technologies, Inc.

  • Page 18: Mounting

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Mounting 1. Punch appropriate conduit holes for control, motor, and input power wiring (Figure 4). CAUTION: To maintain the NEMA Type 3R/3RHE enclosure rating, use only fittings rated 3R or rain tight, or for wet locations.
  • Page 19 GUARD AIR INLET (SHADED AREA ONLY) 1 (25) 1 (25) 1 (25) (483) Figure 7. Enclosure Frame F. Dimensions in Inches (Mm). The Light/Switch location for Type 3RHE differs from the standard 3R frames as NOTE: shown above. Siemens Building Technologies, Inc.

  • Page 20: Wiring Connections

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Wiring Connections See Figure 8 through Figure 13 for all NEMA Type 3R/3RHE Bypass wiring. NOTE: 1. Do not mix control, motor, and input wiring in the same conduit. Run separate wire types with maximum possible separation.
  • Page 21 6. Ensure that automatic bypass will not damage the system before activating. 7. See Table 10 for proper fuse and wire sizes. 8. See Siemens Publication No. 125-3201 for SED2 VFD input/output signal wiring details. Siemens Building Technologies, Inc.
  • Page 22 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions DRIVE CONTROL TERMINATIONS ANALOG INPUT EXAMPLES CONTROL TERMINATIONS LOCATED EXTERNAL EXTERNAL ON DRIVE I/O MODULE. 0 TO 10V 0/4 TO 20mA 20 21 22 SPEED POTENTIOMETER 4.7K OHM VFD 24 VDC POWERED...
  • Page 23 VFD INPUT CONTACTOR (A1) (A2) DRIVE TEST STANDARD ON NEMA TYPE 3RHE. OPTIONAL 3 CONTACTOR BYPASS FOR NEMA 3R BYPASS. X TERMINAL NUMBER X ON CBT-1. Figure 10. NEMA Type 3R/3RHE Bypass 120 Vac Control Circuit. Siemens Building Technologies, Inc.
  • Page 24 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions OUTPUT CONTACTOR CONTROL TRANSFORMER RELAYS TERMINAL BLOCK LINE REACTOR INPUT CONTACTOR NOTE: Grommets, Baffle and Heater components not BYPASS CONTACTOR present in 3RHE SED2 VFD models. POWER FUSES GROMMETS (5) MOTOR OVERLOAD...
  • Page 25 MOTOR WIRING TO INPUT POWER WIRING MOTOR OVERLOAD TO DISCONNECT L1, L2, L3 AND TO T1, T2, T3, AND TO GROUND LUG GROUND LUG Figure 13. Routing of Power and Control Wiring for Enclosure Frame Size F. Siemens Building Technologies, Inc.

  • Page 26: Motor Cable Length

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Motor Cable Length Motor cable length is given to ensure performance of only the drive, not the suitability of the motor when connected to a drive at this distance. • Maximum motor cable length is 164 ft (50 m).

  • Page 27: Access To Sed2 Connection Terminals

    To access the mains power and motor terminals, remove the operator panel, cover, and I/O module. Removing Operator Panel (BOP or AOP). Removing Terminal Cover Figure 15. Access to Connection Terminals for SED2 Frame Size A. Siemens Building Technologies, Inc.
  • Page 28 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Figure 16. Access to Connection Terminals for SED2 Frame Size B and C. Figure 17. Access to Connection Terminals for SED2 Frame Size D and E. Siemens Building Technologies, Inc.
  • Page 29 Installation Figure 18. Access to Connection Terminals for SED2 Frame Size F. Siemens Building Technologies, Inc.
  • Page 30 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Table 3. Wire Sizes and Tightening Torques for NEMA Type 3R/3RHE Bypasses with 208V Drive. Disconnect Overload Ground Lug Switch Bypass Enclosure kW Amps Part Number Torque, Torque, Torque, Frame Wire Wire...
  • Page 31 VBA260_3__X 45.0 6-3/0 50 - 200 14-2/0 50 (5.6) kcmil (13.5 - 31.1) (14 - 23.7) * Wire size is AWG unless noted otherwise. Use Copper (Cu) wire that is rated 167°F (75°C) minimum 600 Vac. Siemens Building Technologies, Inc.
  • Page 32 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Table 5. Wire Sizes and Tightening Torques for NEMA Type 3R/3RHE Bypasses with 380V - 480V Drive. Disconnect Overload Ground Lug Switch Bypass Part Number* Enclosure Amps Torque, Torque, Torque, Frame Wire...
  • Page 33 125 90.0 125 10-1/0 50 - 200 800 14-2/0 50 (5.6) kcmil (14 - 31.1) (14 - 23.7) * Wire Size in AWG unless noted otherwise. Use Copper (Cu) wire that is rated 167°F (75°C) minimum, 600 Vac. Siemens Building Technologies, Inc.

  • Page 34: Startup Procedures

    The SED2 is thoroughly tested at the factory. Verify that the drive is free of shipping and installation damage. Shipping damage is not covered by the Siemens warranty; claims must be filed directly with the shipping company as soon as possible.

  • Page 35: Start-Up

    2. The heater should be set above the typical average dew point for your part of the country. If unsure of your typical dew point temperature, 75°F (24°C) should be appropriate for most areas. Siemens Building Technologies, Inc.
  • Page 36 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Keep your Startup, Operation & Maintenance Manuals, option schematics, and any other instructions sent with the drive easily accessible to assist you through the remainder of this startup process. Check Step Verify that the electrical supply power lines connect to the input device and that the motor leads connect to the output terminals of the overload relay.
  • Page 37 BYPASS TEST—Be prepared to monitor rotation of the motor in bypass operation. “Bump” the Drive-Off-Bypass switch to BYPASS and then quickly back to OFF. Check the motor rotation. CAUTION: Do NOT allow the motor to operate in bypass mode unless the motor rotation is correct. Siemens Building Technologies, Inc.
  • Page 38 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions If motor rotation in bypass mode is correct, proceed to Step 17. If motor rotation in bypass mode is NOT correct, check the following and perform as described: • Turn OFF the incoming power feed to the drive. Since the correct rotation in drive mode was previously established, do not change any output wires at motor.

  • Page 39: Quick Commissioning Procedure

    Press to advance to 3 (expert level). Press to confirm and save the P0003=3 setting. NOTE: Before starting quick commissioning, set P0003 = 3 to ensure all necessary parameters are available during quick commissioning. Siemens Building Technologies, Inc.
  • Page 40 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Parameter Description Action Setting/Default P0010 Setting = 1 Quick Commissioning Press to access parameter r0000 and to enter the SED2 0 = Ready to Run Default = 0 parameter mode. 1 = Quick...
  • Page 41 If P0100 = 1 (60 Hz, hp, North Press to advance to America), then motor power is in nominal power. Press to confirm and save the setting. * Motor related parameters. Siemens Building Technologies, Inc.
  • Page 42 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Table 7. Quick Commissioning Parameters, continued. Parameter Description Action Setting/Default P0308*, or Setting = Rated Motor cosPhi (P308), or Press to advance to P0309 Motor nameplate Rated Motor Efficiency (P0309) parameter P0308 or P0309.
  • Page 43 (P0305), whichever is lower. Press to advance to desired value. NOTE: This parameter is available when P0003 = 3 and Press to confirm and save P0010 = 1 the setting. * Motor related parameters. Siemens Building Technologies, Inc.
  • Page 44 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Parameter Description Action Setting/Default P0700(0)** Setting = 2 Selection of Command Source Press to advance to (Start Command) parameter P0700. Default = 2 Selects the command source as follows: Press to access the parameter indexes.
  • Page 45 4 = USS on BOP Link/AOP parameter selection level. 5 = USS on COM link 6 = CB (Communications board or module) on COM link/P1-N2 communications ** Parameters have two index settings: IN000 = Auto and IN001 = Hand. Siemens Building Technologies, Inc.
  • Page 46 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Parameter Description Action Setting/Default P1080 Site Setting Minimum Motor Frequency Press to advance to parameter P1080. 0 Hz to 650 Hz (20% to 30% Max) Minimum motor frequency at Default = 10...
  • Page 47 F0003 under voltage. If using an external frequency setpoint with set ramp rates (such as from a PLC), achieve optimum SED2 performance by setting ramp times (P1120 and P1121) slightly shorter than those of the PLC. Siemens Building Technologies, Inc.
  • Page 48 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Parameter Description Action Setting/Default P3900 Setting = 1 End Quick Commissioning Press to advance to parameter P3900. 0 = End without motor calculation Default = 0 or factory reset. Press to access the 1 = End with motor calculation parameter values level.

  • Page 49: Additional Parameter Settings

    Otherwise, overcurrent trips occur. If the SED2 faults on F0002 (overvoltage) on a start command, flying start may have to be optimized by reducing the values in P1203 and P1202. Siemens Building Technologies, Inc.
  • Page 50 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Parameter Description Action Setting/Default P1202 Minimum = 10 Motor Current: Flying Start Press to enter the SED2 Default = 100 parameter mode and to r0000. Maximum = 200 Defines search current used for flying start.

  • Page 51: Automatic Restart

    (F0003). The inverter will acknowledge the fault and will restart the drive after a blackout or brownwout. It is necessary that the ON command is wired via digital input (DIN). Siemens Building Technologies, Inc.
  • Page 52 SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Automatic Restart Continued Parameter Description Action Setting/Default P1211 P1210 = 5, Restart after blackout or Minimum = 0 Press to enter the SED2 fault (P1211 disabled): Default = 3 parameter mode and to r0000.
  • Page 53 Suggested = 10 Press to advance to the SED2 if P1210 automatic parameter P1213. restart is activated. Press to access the parameter values level. Press to advance to desired value. Press to confirm and save the setting. Siemens Building Technologies, Inc.

  • Page 54: Vdc Controller

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Vdc Controller Parameter Description Action Setting/Default P1240 Minimum = 0 Configuration of Vdc Press to enter the SED2 Default = 1 Controller parameter mode and to r0000. Maximum = 3 Enables/disabled Vdc controller.

  • Page 55: Pulse Frequency

    If silent operation is not absolutely necessary, lower pulse frequencies may be selected to reduce SED2 losses and radio-frequency emissions. Under certain circumstances, the SED2 may reduce the switching frequency to provide protection against over- temperature. Siemens Building Technologies, Inc.

  • Page 56: Motor Data Identification

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Motor Data Identification Parameter Description Action Setting/ Default P1910 Minimum = 0 Motor Data Identification Press to enter the SED2 parameter mode and to display Maximum = 20 Performs stator resistance r0000.
  • Page 57 − P1910=2 means that the value is only displayed. That is, it is shown for checking purposes in the read-only parameter r1912 (identified stator resistance). The value is not applied to the control. Siemens Building Technologies, Inc.

  • Page 58: Reset To Factory Defaults

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Reset to Factory Defaults Parameter Description Action Setting/Default P0010 P0010: Reset to Factory Default Press to enter the SED2 P0970 Setting = 30 parameter mode and to r0000. Default = 0 Resets SED2 parameters to the factory defaults.

  • Page 59: Required Sed2 Parameter Settings

    Required SED2 parameters for automatic bypass on a drive fault are as follows: Parameter Setting P0748 P0731 52.3 Follow wiring as noted in the NEMA Type 3R Bypass Operation Overview section NOTE: (Automatic Bypass Operation description). Siemens Building Technologies, Inc.

  • Page 60: Technical Specifications

    SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions Technical Specifications Table 8. NEMA Type 3R/3RHE Bypass Specifications. NEMA Type 3R Bypass Description Specification 208V, 3 AC ±10% 240V, 3 AC ±10% Input Voltage (3 phase) 480V, 3 AC ±10% 575V, 3 AC ±10%* Operating: 14°F to 104°F (–10°C to 40°C), HT1 to 122°F (50°C)
  • Page 61 > 16A and =< 75 A per phase”. Siemens variable speed drives of the product range SED2 (Micromaster 436) fulfill the requirements of the EN 61000-3-12 (without the need for external line reactors) regarding the THD values of Table 3 under the pre condition of Rsce >...

  • Page 62: Troubleshooting

    SED2 VFD NEMA Type 3R Bypass Operating Instructions Troubleshooting Description of Problem Possible Cause • SED2 required programming for bypass operation has not been Commanding the SED2 programmed in the VFD. Make appropriate VFD programming to start closes the bypass changes.
  • Page 63 NEMA Type 3R Bypass Enclosure DE and F 750 VA Transformers Voltage Primary Fuse (F1 and F2) Secondary Fuse (F3) 208V Bussmann/Littlefuse LP-CC-9 Bussmann/Littlefuse LP-CC-10 240V Bussmann/Littlefuse LP-CC-8 Bussmann/Littlefuse LP-CC-10 480V Bussmann/Littlefuse LP-CC-4.5 Bussmann/Littlefuse LP-CC-10 575V Bussmann/Littlefuse LP-CC-3.5 Bussmann/Littlefuse LP-CC-10 Siemens Building Technologies, Inc.
  • Page 64 SED2 VFD NEMA Type 3R Bypass Operating Instructions Siemens Building Technologies, Inc. Industry Sector 1000 Deerfield Parkway Buffalo Grove, IL 60089-4513 Tel: +1 847-215-1000 Fax +1 847-215-1093 Siemens Building Technologies, Ltd. 2185 Derry Road West Mississauga, ON L5N 7A6 Canada Tel: +1 905-819-5800 www.sbt.siemens.com...

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