Siemens 125-3208 operating instructions Electrical Installation

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SED2 VFD Electronic Bypass Option Operating Instructions

Electrical Installation

See Figure 9 for all Electronic Bypass Option wiring.

1.Route shielded twisted pair (recommended wire type) cable, 24 gauge minimum control wiring in conduit through knockout and into housing (Figures 10 through 12). Connect control wiring per job-specific drawings.

NOTES:

•Terminate shield at control device.

•Control wiring is 12 to 26 AWG and tightening torque is 5 lb-in.

2.If applicable, route communications wiring (P1) in conduit through knockout and into housing (Figures 10 through 12). Continue to route communications wiring to SED2 and terminate per SED2 VFD Startup, Operation, and Maintenance Manual (125-3201).

3.Route motor wiring in conduit through knockout and into housing (Figures 10 through 12). Connect motor wiring to motor overload and ground lug. See Tables 1 through 4 for wire sizes and tightening torques.

4.Route input power wiring in conduit through knockout and into housing (Figures 10 through 12). Connect input power wiring to disconnect switch and ground lug or to circuit breaker and ground lug. See Tables 1 through 4 for wire sizes and tightening torques.

12	Siemens Building Technologies, Inc.

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Contents SED2 VFD Electronic Bypass Options Page SED2 VFD Electronic Bypass Option Operating Instructions Page Service Statement Page Table of Contents Application Feature Setup Technical Specifications TroubleshootingHow to Use this Manual Notation Symbol MeaningManual Organization Manual NotationsWhere To Send Comments Reference DocumentsSafety Instructions Fuses optional Electronic Bypass Option OverviewGeneral Description Controller Board Controller Board Inputs and OutputsContactors Keypad FunctionsPushbutton/Indicator DescriptionPushbutton/Indicator Description Output relay on the Controller boardInstallation Instructions Mechanical InstallationDimensions and Weights Environmental ConditionsBypass Dimensions in Inches Centimeters MountingFrame Sizes D and E Conduit Locations Viewed from Bottom Electrical Installation Bypass Power Circuit Routing of Power and Control Wiring For Frame Sizes a and B Disconnect Overload Ground Lug Switch Disconnect Overload Ground Lug Wire Max Startup Procedures Safety PrecautionsInstallation Inspection Power-OnSwitch Description Position DIP Switch Settings for E-Bypass FeaturesQuick Commissioning Quick Commissioning Parameter Description Action Setting DefaultUser Access Level Rated Motor Voltage Operation for Europe/NAmerica Rated Motor Power Rated Motor CurrentRated Motor cosPhi P308, or Rated Motor Efficiency P0309Rated Motor Frequency Rated Motor SpeedMotor Overload Factor Selection of Command SourceStart Command Setpoint Speed Command SourceSelection of Frequency Minimum Motor Frequency Maximum Motor Frequency Ramp-up TimeRamp-down time End Quick CommissioningAdditional Parameter Settings Flying StartFlying Start R0000Motor Current Flying Start Search Rate Flying StartAutomatic Restart Automatic RestartSED2 VFD Electronic Bypass Option Operating Instructions Number of Restart Attempts Time to First RestartVdc Controller Restart Time IncrementPulse Frequency Motor Data Identification Motor Data IdentificationMotor Data Identification Reset to Factory Defaults P0970Required SED2 Parameter Settings Parameter SettingApplication Feature Setup OverviewAuto Bypass without Interlock DescriptionSettings Example SED2 SettingsInterlock Application Feature Setup Essential Services Wiring Example for InterlockWiring Example for Essential Services Interlock and Auto Bypass on VFD Fault Wiring Example for Interlock and Auto Bypass on VFD FaultTechnical Specifications Specifications DescriptionDrive Specifications Description Electronic Bypass SpecificationsDrive Specifications Description SED2 VFD Electronic Bypass Operating InstructonsTroubleshooting Power-on Initialization Failure Unit Fault ConditionBasic Sanity Description Test Fault Code/Flashes Basic Sanity Test Fault CodesOverride Jumper FusesFuse Replacement Information VFD0122R2 Troubleshooting Siemens Building Technologies, Inc