SED2 VFD Electronic Bypass Options Operating Instructions Item Number 125-3208, Rev.
SED2 VFD Electronic Bypass Option Operating Instructions
NOTICE The information contained within this document is subject to change without notice and should not be construed as a commitment by Siemens Building Technologies, Inc. Siemens Building Technologies, Inc. assumes no responsibility for any errors that may appear in this document. All software described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license.
Table of Contents Table of Contents How to Use this Manual................................................................................................ 1 Manual Organization.................................................................................................. 1 Manual Notations ....................................................................................................... 1 Where To Send Comments ..................................................................................
SED2 VFD Electronic Bypass Option Operating Instructions Application Feature Setup ........................................................................................... 42 Overview .................................................................................................................... 42 Auto Bypass without Interlock.................................................................................... 42 Description ...........................................................................
How to Use this Manual How to Use this Manual Manual Organization This manual contains the following sections: • How to Use this Manual, describes the organization of this manual and the symbols used throughout this manual. • Safety Instructions, provides general guidelines for your safety and to prevent equipment damage. • Electronic Bypass Option Overview, describes the Electronic Bypass Option Controller board, inputs, outputs, contactors, and keypad.
SED2 VFD Electronic Bypass Option Operating Instructions Where To Send Comments Your feedback is important to us. If you have comments about this manual, please submit them to technical.editor@sbt.siemens.com. Reference Documents The following SED2 documentation is available from your local Siemens Building Technologies, Inc. representative: 2 • SED2 VFD Startup Operation, and Maintenance Manual (125-3201), provides operating instructions and procedures for the SED2.
Safety Instructions Safety Instructions The following guidelines are provided for your safety, to prevent damage, and to extend the service life of the SED2 product and any connected equipment. Read this information carefully. Specific Warnings, Cautions, and Notes are provided in the relevant sections of this manual. WARNING: • The SED2 uses hazardous voltages and controls potentially dangerous rotating mechanical parts.
SED2 VFD Electronic Bypass Option Operating Instructions Electronic Bypass Option Overview General Description BYPASS CONTACTOR 4 • Keypad • Step-down power transformer • Contactors: − Bypass − Output − Input (optional) • Overload (current) relay • Reactor (optional) • Disconnect switch (or optional circuit breaker) • Fuses (optional) • Cable harnesses CONTROLLER BOARD MOTOR OUTPUT CONTACTOR SED2 VFD KEYPAD (DOOR MOUNTED) INPUT CONTACTOR STEP-DOWN POWER TRANSFORMER REACTOR (OPT
Electronic Bypass Option Overview Controller Board The Controller board is the foundation of the SED2 Electronic Bypass Option. It controls communications to and from the SED2, keypad, isolated digital inputs, relay/digital outputs, and contactors (Figure 3). SED2 INTERFACE Supports two SED2 non-isolated, digital relay outputs and three SED2 digital inputs. The maximum current draw for a relay output is 2 mA and the voltage between the digital output source and return lines is 24V.
SED2 VFD Electronic Bypass Option Operating Instructions Contactors The Controller board provides two or three relay contact circuits controlled by the Electronic Bypass Option: bypass, input, and output contactors. Each circuit includes a NO relay. Controller board connector J7 enables circuit connections. The relay circuits route power to the SED2 and the motor via the contactors. Controlling the contactors through the relay circuits is the main function of the Controller board.
Electronic Bypass Option Overview VFD0102R1 VFD0101R1 VFD0100R1 VFD0099R1 VFD0098R1 Pushbutton/Indicator Input On/Off The Input On/Off pushbutton is supplied with the optional drive input contactor. In VFD mode, this switch does nothing. In bypass mode, this switch closes/opens the input contactor, switching the SED2 power on/off. Enable Enables SED2 operation by closing the input and output contactors.
SED2 VFD Electronic Bypass Option Operating Instructions Pushbutton/Indicator Description VFD0108R1 When the Interlock DIP switch is enabled, the Interlock Start Logic Enable indicator is on steady. Any call to start the motor in either VFD or bypass modes will not start the motor; instead it will close the Programmable Output relay on the Controller board. INTERLOCK START LOGIC Enable Commanded Proofed The Programmable Output can be used to actuate another device.
Installation Instructions Installation Instructions Environmental Conditions Install the Electronic Bypass Option in a heated, indoor controlled environment that is free of moisture and conductive contaminants such as condensation and dust. The air entering the unit for ventilation/cooling must be clean and free from corrosive gases. The ambient temperature must be between 14°F and 104°F (-10°C to 40°C) and the relative humidity must be 0% to 95% noncondensing. Do not mount unit in direct sunlight.
SED2 VFD Electronic Bypass Option Operating Instructions Mounting 1. To ensure safe installation, verify that the surface of the mounting location is level. 2. Mount the Electronic Bypass Option vertically with the SED2 operator panel, Electronic Bypass Option keypad, and disconnect accessible. Depth With Handle 10.4 (26) = Protective Shield Depth With Handle 9.6 (24) Depth With Handle 9.6 (24) 13.2 (34) 11.5 (29) 20.8 (53) 1 (2.5) 2 (5) 2.9 (7.4) 4 (10) 1.5 (3.8) 53.5 (136) 48 (122) 34 (86) 10.
Installation Instructions 1/2 (1.3) AND 3/4 (1.9) CONDUIT KNOCKOUTS 1/2 (1.3) AND 3/4 (1.9) CONDUIT KNOCKOUTS 3/4 (1.9) AND 1 (2.5) CONDUIT KNOCKOUTS 1-1/4 (3.2) AND 1-1/2 (3.8) CONDUIT KNOCKOUTS (3) 8 (20.3) 6 (15.2) 4 (10.2) 2-3/4 (6.9) VFD0202R1 3-5/8 (9.2) VFD0201R1 2-1/8 (5.3) 9-1/2 (24.1) 7-3/8 (18.7) 13-5/8 11-7/8 (34.6) (30.1) 16 (40.7) Figure 7. Frame Sizes D and E Conduit Locations. Viewed from Bottom; Dimensions in Inches (Centimeters). Figure 6.
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.
Installation Instructions OPTIONAL SUPPLEMENTARY POWER FUSES - MAIN SHORT CIRCUIT PROTECTION BY OTHERS (SEE NOTE 1) DISC1 FU1 L1 1L1 (T1) (L1) POWER SUPPLY L2 3 PHASE (T2) 60 Hz L3 (T3) GND M1 2L1 1L2 (L2) 2L2 1L3 (L3) 2L3 OPTIONAL OPTIONAL DRIVE INPUT INPUT LINE CONTACTOR REACTOR M3 3L1 R (2) (1) A1 A2 3L2 S (4) (3) B1 B2 GND GND LUG 3L3 (6) (5) T C1 OPTIONAL OUTPUT LOAD REACTOR VFD L1 U L2 V L3 W C2 U1 (5) (6) (3) (4) (1) (2) U A1 A2 V1 M2 OL1 (1) (2) 1T1 (T1) (3) (4) 1
SED2 VFD Electronic Bypass Option Operating Instructions SED2 VFD SED2 VFD CONTROLLER BOARD INPUT CONTACTOR (OPTIONAL) INPUT CONTACTOR (OPTIONAL) J2 CONTROL WIRING (DIGITAL INPUTS/ OUTPUTS) VIA 2 KNOCKOUTS COMMUNICATIONS WIRING (P1) VIA 1 KNOCKOUT CONTROLLER BOARD COMMUNICATIONS WIRING (P1) VIA 1 KNOCKOUT J2 CONTROL WIRING (DIGITAL INPUTS/ OUTPUTS) VIA 2 KNOCKOUTS J1 REACTOR (OPTIONAL) REACTOR (OPTIONAL) J1 TRANSFORMER TRANSFORMER POWER FUSES (OPTIONAL) OUTPUT CONTACTOR GROUND LUGS BYPASS C
Installation Instructions Table 1. Wire Sizes and Tightening Torques for E-Bypass with 208V Drive. Circuit Breaker Part Number Bypass Frame HP Size kW Amps Wire Size * Disconnect Switch Torque, Wire lb-in Size * (Nm) Overload Torque, lb-in (Nm) Wire Size * Ground Lug Max Torque, Torque, Range, Backup Wire lb-in lb-in Amps Fuse, Size * (Nm) (Nm) Amps VBE10.5---- A 0.5 0.37 2.3 14-10 Cu 32 (3.6) 18-10 13 (1.5 - 1.7) 18-14 7 - 10.3 (8 - 1.2) 1.8 - 2.5 10 14-2 35 (4) VBE10.7---- A 0.
SED2 VFD Electronic Bypass Option Operating Instructions Table 2. Wire Sizes and Tightening Torques for E-Bypass with 230V to 240V Drive. Circuit Breaker Part Number Bypass Frame HP Size kW Amps Wire Size * Disconnect Switch Torque, Wire lb-in Size * (Nm) Overload Torque, lb-in (Nm) Wire Size * Ground Lug Max Torque, Torque, Range, Backup Wire lb-in lb-in Amps Fuse, Size * (Nm) (Nm) Amps VBE20.5---- A 0.5 0.37 2.2 14-10 Cu 32 (3.6) 18-10 13 (1.5 - 1.7) 18-14 7 - 10.3 (8 - 1.2) 1.8 - 2.
Installation Instructions Table 3. Wire Sizes and Tightening Torques for E-Bypass with 380V to 480V Drive. Circuit Breaker Part Number Bypass Frame HP Size kW Amps Wire Size * Disconnect Switch Torque, Wire lb-in Size * (Nm) Overload Torque, lb-in (Nm) Wire Size * Torque, lb-in (Nm) Range, Amps VBE30.5---- A 0.5 0.37 1.1 14-10 Cu 32 (3.6) 18-10 13 - 17 (1.5 - 1.7) 18-14 7 - 10.3 (8 - 1.2) .7 - 1.0 VBE30.7---- A 0.7 0.55 1.6 14-10 Cu 32 (3.6) 18-10 13 - 17 (1.5 - 1.
SED2 VFD Electronic Bypass Option Operating Instructions Table 4. Wire Sizes and Tightening Torques for E-Bypass with 500V to 600V Drive. Circuit Breaker Part Number Bypass Frame Size HP VBE40.5---- C 0.5 0.37 .9 14-10 Cu 32 (3.6) VBE40.7---- C 0.7 0.55 1.3 14-10 Cu VBE41.0---- C 1.0 0.75 1.
Startup Procedures Startup Procedures Safety Precautions WARNING: When you connect input power to the Electronic Bypass Option, the motor terminals are energized even if the motor is not running. Do not make any connections with input power connected to the Electronic Bypass Option. Disconnect and lock out power to the drive before servicing it. Failure to disconnect input power may cause serious injury or death.
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).
Startup Procedures 9. If motor rotation is incorrect in either VFD, bypass, or both modes, have the appropriate site personnel take corrective action as follows: − Wrong Rotation in Bypass, Right in VFD Mode – Swap two input leads on the main input device of the Electronic Bypass Option. − Wrong Rotation in VFD, Right in Bypass Mode – Swap two input leads on the main input device of the Electronic Bypass Option and swap two motor leads at the motor overload in the Electronic Bypass Option.
SED2 VFD Electronic Bypass Option Operating Instructions Parameter P0003 Description User Access Level Allows you to access more parameters. 1 = Standard 2 = Extended Action 1. to access parameter Press r0000 and to enter the SED2 parameter mode. 2. Press to advance to parameter P0003. 3. to access the Press parameter values level. 4. Press to advance to 3 (expert level). 5. Press to confirm and save the P0003 = 3 setting.
Startup Procedures Parameter P0100 Description Operation for Europe/N. America 0 = 50 Hz, kW (Europe) factory default 1 = 60 Hz, hp (North America) 2 = 60 Hz, kW (North America) Action 1. Press to advance to parameter P0100. 2 Press to access the parameter values level. 3. Press 4. Press to confirm and save the P0100 = 1 setting. The setting of Motor Frequency and Unit of Measurement DIP switch 2 overrides P0100 settings 0 and 1. to advance to 1.
SED2 VFD Electronic Bypass Option Operating Instructions Parameter P0305* Description Action 1. Press to advance to parameter P0305. Setting = Motor nameplate 2. Press to access the parameter values level. Default = Varies by model 3. to advance to Press nominal current. 4. to confirm and save Press the setting. 1. Press to advance to parameter P0307. Rated motor power (kW or hp) from motor nameplate. 2. Press to access the parameter values level.
Startup Procedures Parameter P0310* Description Rated Motor Frequency Action Setting = Motor nameplate 60 Hz 1. Press to advance to parameter P0310. Rated motor frequency (Hz) from motor nameplate. 2. Press to access the parameter values level. Pole pair number is recalculated automatically if the parameter is changed. 3. Press to advance to nominal frequency (60 Hz). 4. to confirm and save Press the setting. 1. Press to advance to parameter P0311. Setting = Motor nameplate 2.
SED2 VFD Electronic Bypass Option Operating Instructions Parameter P0640 Description Motor Overload Factor Action 1. 10% to 400% Press to advance to parameter P0640. Setting/ Default Setting = As applicable Default = 110 Limited to the maximum SED2 output current rating, or to 400% of the rated current (P0305), whichever is lower. P0700(0)** 2. Press to access the parameter values level. 3. NOTE: This parameter is available when P0003 = 3 and P0010 = 1. Press to advance to desired value. 4.
Startup Procedures Parameter P0700[1]** Description Selection of Command Source (Start Command) Selects the command source as follows: Action 1. 2. Press to confirm index selection. 3. Press 4. Press to confirm and save the setting. 5. Press again to return to the parameter selection level. 0 = Factory default setting 1 = BOP (keypad) 2 = Terminal digital input 4 = USS on BOP link (AOP) 5 = USS on COM link to advance to index Press [1], IN001, HAND.
SED2 VFD Electronic Bypass Option Operating Instructions Parameter P1000[1]** Description Selection of Frequency Setpoint Action 1. to advance to index Press [1], IN001, HAND. Setting/ Default Setting = 1 Default = 1 (Speed Command Source) 2. Press to confirm index selection. 1 = Motor potentiometer setpoint/AOP 3. Press 2 = Analog input 4. Press to confirm and save the setting. 5. Press again to return to the parameter selection level. 1. to advance to Press parameter P1080.
Startup Procedures Parameter P1082 Description Maximum Motor Frequency Action 1. 0 Hz to 650 Hz Maximum motor frequency at which the motor will run regardless of the frequency setpoint. This value applies to both clockwise and counterclockwise rotation. Press to advance to parameter P1082. 2. Press to access the parameter values level. 3. Press value. 4. Press to confirm and save the setting.
SED2 VFD Electronic Bypass Option Operating Instructions Parameter P1121 Description Ramp-down time Action 1. 0s to 650s Press to advance to parameter P1121. 2. Press to access the parameter values level. 3. Press value. 4. Press to confirm and save the setting. to advance it desired Setting/ Default Site Setting Default = 30 Typical fan = 120s Typical pump = 30s NOTES: 1.
Startup Procedures Additional Parameter Settings NOTE: If Display Selection for r0000, parameter P0005 = 21 (actual frequency), then the BOP display alternately shows setpoint values and the actual value (0 Hz). Flying Start Parameter P1200 Description Flying Start Starts SED2 into a spinning motor by rapidly changing the output frequency of the SED2 until the actual motor speed is found. Then, the motor runs up to setpoint using the normal ramp time. 0 = Flying start disabled.
SED2 VFD Electronic Bypass Option Operating Instructions Parameter P1202 Description Motor Current: Flying Start Defines search current used for flying start. Value is in % based on the rated motor current (P0305). Action 1. Press to enter the SED2 parameter mode and to display r0000. 2. Press to advance to parameter P1202. 3. Press to access the parameter values level. 4. Press to advance to desired value. 5. Press to confirm and save the setting.
Startup Procedures Automatic Restart CAUTION: Settings 2 through 7 can cause the motor to restart unexpectedly. Parameter P1210 Description Automatic Restart Action 1. Press to enter the SED2 parameter mode and to display r0000. 2. to advance to Press parameter P1210. 3. to access the Press parameter values level. 4. Press to advance to desired setting. 5. to confirm and save Press the setting. Enables SED2 restart after a supply power break or after a fault.
SED2 VFD Electronic Bypass Option Operating Instructions Automatic Restart Continued Parameter P1210 (Continued) Description Action Setting/ Default P1210 = 4, Restart after supply power brownout (P1211 disabled): For these settings it is fundamental that the drive only restarts if it has been in a RUN state at the time of the fault (F0003). The inverter will acknowledge the fault and will restart the drive after a blackout or brownwout.
Startup Procedures Parameter P1211 Description Number of Restart Attempts Specifies the number of times SED2 will attempt to restart after supply power brownout or fault, if P1210 automatic restart is activated. P1212 Time to First Restart Selects the time (seconds) before the SED2 is restarted for the first time if P1210 automatic restart is activated. Siemens Building Technologies, Inc. Action 1. Press to enter the SED2 parameter mode and to display r0000. 2. to advance to Press parameter P1211.
SED2 VFD Electronic Bypass Option Operating Instructions Parameter P1213 Description Restart Time Increment Selects the amount (seconds) that the restart time is incremented for each restart of the SED2 if P1210 automatic restart is activated. Action Setting/ Default 1. Press to enter the SED2 parameter mode and to display r0000. Minimum = 0 Default = 30 Maximum = 1000 2. to advance to Press parameter P1213. Suggested = 10 3. to access the Press parameter values level. 4.
Startup Procedures Pulse Frequency Parameter P1800 Description Pulse Frequency Sets pulse frequency (kHz) of power switches in SED2. The frequency can be changed in increments of 2 kHz. Pulse frequencies > 4 kHz selected on 380V to 480V units reduce the maximum continuous motor current. Action 1. 2. to enter the SED2 Press parameter mode and to display r0000. Press to advance to parameter P1800. Setting/ Default Minimum = 4 Default = Varies by model (hp/voltage dependent) Maximum = 16 3.
SED2 VFD Electronic Bypass Option Operating Instructions Motor Data Identification Parameter P1910 Description Motor Data Identification Action 1. Performs stator resistance measuring. 0 = Disabled. 2. Press to advance to parameter P1910. 3. Press to access the parameter values level. 4. Press 1 = Identification of Rs with parameter change. 2 = Identification of Rs without parameter change. 3 = Identification of the saturation characteristic with parameter change.
Startup Procedures Motor Data Identification Continued 6. Press to advance to setting to confirm P1910=3. Press and save the setting. When P1910=3, Alarm 0541 (motor data identification active) is output and internally P0340 is set to 2. Initiate the measuring operation with a continuous (steady-state) ON command. On completion of the motor data identification routine, P1910 resets (P1910=0, motor data identification routine inhibited) and Alarm A0541 is cleared (deleted). 7.
SED2 VFD Electronic Bypass Option Operating Instructions Reset to Factory Defaults Parameter P0010 P0970 Description Reset to Factory Default Action 1. Resets SED2 parameters to the factory defaults. to enter the SED2 Press parameter mode and to display r0000. 2. Press to advance to parameter P0010. 3. to access the Press parameter values level. 4. Press 5. Press to confirm and save the setting. 6. Press P0970. 7. to access the Press parameter values level. 8. Press 9.
Required SED2 Parameter Settings Required SED2 Parameter Settings The following SED2 parameters are programmed by the factory before shipping. If these parameters are changed or if the SED2 is ever reset to factory default, you must reset these parameters as follows: Parameter Setting P0748 P0702 in000 3 P0702 in001 3 P0731 52.3 NOTES: 1.
SED2 VFD Electronic Bypass Option Operating Instructions Application Feature Setup Remote Start Input Overview Remote Safety #1 DIGITAL INPUTS The Controller board supports six isolated digital inputs and six digital relay outputs for customer use (Figure 13). The digital inputs include: Remote Start Input, Remote Safety #1 and #2, Interlock Start, Essential Services, and Overload Trigger.
Application Feature Setup NOTES: 1. All safety conditions must be met for bypass mode operation. 2. The input contactor remains energized. The Electronic Bypass Option will return to VFD mode operation as soon as the SED2 Relay in control opens. When the Electronic Bypass Option returns to VFD mode operation, the following occurs: • The SED2 Relay opens, the Programmable Output on the Controller board opens, and the bypass contactor opens. • The output contactor closes.
SED2 VFD Electronic Bypass Option Operating Instructions Interlock Description The Interlock feature (also called damper end switch logic) enables the SED2 outputs to inhibit motor start until a safety condition (proofing sequence) is confirmed. Any call to start the motor from the SED2 or bypass does not directly start the motor, but instead initiates the following Interlock procedure: • The Interlock Start Logic Enable indicator is ON. Proofing is required to start in VFD or bypass mode.
Application Feature Setup 2. Example assumes hardwired start is in auto. If other, modify P0732 as appropriate. For proper Interlock operation, set the following SED2 parameters: • P0700 in000 = 2 Digital input that is the start command in the auto mode (from the damper end switch) • P0700 in001 = 2 Digital input that is the start command in the hand mode (from the damper end switch) • P0701 in000 = 99 and P0701 in001 = 99 Initiate BiCo • P0702 in000 = 3 and P0702 in001 = 3 • P0732 in000 = 722.
SED2 VFD Electronic Bypass Option Operating Instructions DIGITAL INPUTS Wiring Example for Interlock Remote Start Input Remote Safety #1 Remote Safety #2 Customer Proof Interlock Start DIGITAL OUTPUTS VFD0115R2 Power to Customer Device Programmable Output, NO COM NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 J2 J1 Essential Services Description The Essential Services feature allows full-power bypass mode control of the motor during an emergency scenario.
Application Feature Setup 4 3 4 2 3 The Essential Services indicator is on steady. 1 SW1 1 VFD0119R1 ON 2 NOTE: 5 5 ON The Essential Services feature requires that Controller board DIP Switch 1 is set ON. OFF Settings Essential Services does not require SED2 parameter settings. The Essential Services feature simply puts the Electronic Bypass Option into override bypass mode no matter what operation is selected.
SED2 VFD Electronic Bypass Option Operating Instructions Interlock and Auto Bypass on VFD Fault Description Interlock and Auto Bypass features are both active. Auto bypass now becomes auto bypass on a VFD fault only (bypass is initiated by the SED2 Fault and this digital output must always be programmed to VFD fault). • All set-up is the same as with Interlock (see the Interlock section in Application Feature Setup). • Hand bypass is now initiated by SED2 Fault.
Technical Specifications Technical Specifications Table 5. Electronic Bypass Specifications. Specifications Description 208V, 3 ac±10% 240V, 3 ac ±10% Input Voltage (3 phase) 480V, 3 ac ±10% 575V, 3 ac ±10% Digital Inputs Six Digital Inputs as follows: • Remote start input • Remote safety 1 • Remote safety 2 • Interlock start • Essential services • Overload trigger Inputs require a contact closure capable of providing a low impedance path at currents less than 20 mA.
SED2 VFD Electronic Bypass Operating Instructons Table 6. SED2 Specifications (Continued).
Troubleshooting Troubleshooting WARNING: Always disconnect all power sources before opening the SED2 Electronic Bypass Option. Power-on Initialization Failure (Unit Fault Condition) During power-on initialization, a unit fault condition occurs if the Electronic Bypass Option did not pass the basic sanity test. Rather than flash normally, the basic sanity test indicator pauses, flashes a fault code, and then repeats. Table 7 shows the fault codes.
SED2 VFD Electronic Bypass Option Operating Instructons Override Jumper An Override Jumper (J8) is supplied on the Controller board. Moving this jumper to the override position removes the Controller board and its keypad from the control and closes the drive output contactor (and the input contactor if supplied). BPEC BPEC J2 J1 J1 J8 J8 VFD0121R1 J2 OVERRIDE JUMPER J8 SHOWN IN NORMAL POSITION OVERRIDE JUMPER J8 SHOWN IN OVERRIDE POSITION Figure 14. Override Jumper J8 Location and Positions.
Troubleshooting Table 8. Fuse Replacement Information. Bypass Option Part Number Primary Fuse (F3 and F4) Secondary Fuse (F2) VBE10.5… to VBE17.5… Bussmann/Littlefuse LP-CC-1 Bussmann/Littlefuse LP-CC-6/10 VBE110… to VBE110… Bussmann/Littlefuse LP-CC-2 Bussmann/Littlefuse LP-CC-1 1/4 VBE115… to VBE160… Bussmann/Littlefuse LP-CC-3 Bussmann/Littlefuse LP-CC-2 VBE20.5… to VBE27.
SED2 VFD Electronic Bypass Option Operating Instructons VFD Bypass Hand Start Input Contactor Bypass Contactor Remote Start Overload Relay Motor STOP RESET Auto Bypass Enabled VFD Fault Safety Fault Essential Services INTERLOCK START LOGIC Overload Fault Enable Commanded Proofed VFD DO#1, NO COM VFD DO#2, NO COM VFD DI#1 Isolated 0V VFD DI#2 10 9 8 7 VFD DI#3 6 NOTE: 3-Contactor Keypad Shown.
Troubleshooting Siemens Building Technologies, Inc.
SED2 VFD Electronic Bypass Option Operating Instructons Siemens Building Technologies, Inc. 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.
