Siemens 125-3208 Switch Description Position, DIP Switch Settings for E-Bypass Features

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SED2 VFD Electronic Bypass Option Operating Instructions

After the basic sanity test, if the DIP switches have not changed and there is no operator intervention, the most recent bypass function is restored. If the DIP switches have changed, the Electronic Bypass Option activates the Stop/Reset function.

2.Press the Enable key on the Electronic Bypass Option keypad to place the unit in VFD mode.

3.Perform SED2 commissioning per the SED2 VFD Startup, Operation, and Maintenance Manual (125-3201). If using the Quick Commissioning mode, end this mode with P3900 = 3 to run a motor calculation without resetting the SED2 to factory defaults.

4.After basic SED2 operation is established and verified, turn SED2 power off via the Electronic Bypass Option input power device and verify that no dangerous voltages are present in the enclosure.

5.Select Electronic Bypass Option application features using the DIP switches.

DIP Switch Settings for E-Bypass Features.

	Switch	Description
	Position	Description
	Position

1Essential Services selector switch.

2Automatic Bypass selector switch; requires SED2 programming.

3Interlock selector switch; requires SED2 programming.

4Factory test #1 selector switch. Not used; leave this switch OFF.

5Factory test #2 selector switch. Not used; leave this switch OFF.

NOTE: When the switch is ON, the feature is enabled; when the switch is OFF, the feature is disabled. For details on the Electronic Bypass Option features, see the Application Feature Setup section in this manual.

6.Re-apply power to the Electronic Bypass Option. On units with three contactors, energize the SED2 by pressing the Input pushbutton on the Electronic Bypass Option keypad.

7.Program the SED2 per the Application Feature Setup section in this manual.

8.Test all SED2 and bypass features.

20	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 General Description Electronic Bypass Option OverviewFuses optional 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 User Access Level Parameter Description Action Setting DefaultQuick Commissioning America Operation for Europe/NRated Motor Voltage Rated Motor Power Rated Motor CurrentRated Motor cosPhi P308, or Rated Motor Efficiency P0309Rated Motor Frequency Rated Motor SpeedStart Command Selection of Command SourceMotor Overload Factor Selection of Frequency Speed Command SourceSetpoint 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