Installation Instructions

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Table Of Contents

Cable Length

Document No. 129-374

October 2, 2009

SED2 Variable Frequency Drives

Conventional Bypass

(C-Bypass) Options

Item Number 129-374, Rev. DA http://www.siemens.com/hvp/drives Page 1 of 11

Product Description

The SED2 Conventional Bypass (C-Bypass) Options

are companion packages for the family of SED2

Variable Frequency Drives (VFDs).

Product Numbers

VBA… SED2 VFD Conventional Bypass Options

Contents

The SED2 C-Bypass Option consists of a SED2

VFD and a bypass enclosure which includes

• Step-down power transformer

• Contactors: Bypass, Output, Input (optional)

• Overload (current) relay

• Reactor (optional)

• Disconnect switch (or optional circuit

breaker)

• Fuses (optional)

Warning/Caution Notations

WARNING:

Personal injury/loss of life may

occur if you do not follow the

procedures as specified.

CAUTION:

Equipment damage, or loss of

data may occur if you do not

follow the procedures as

specified.

Expected Installation Time

45 minutes

Prerequisites

• Mounting clearance: Leave six-inches (154

mm) of space at top and bottom for

equipment access. If fitted with a protective

shield, allow 12 inches (305 mm) of space

between the sides of each VFD to allow for

sufficient heat dissipation.

• Inverter duty motors are recommended.

Install motors within their guidelines. Use

dVd/dT filters, output reactors, or other load

conditioners as applicable as applicable or

as specified by the motor manufacturer.

• If a disconnect is mounted on the load side

of your drive, it is desirable to wire an

auxiliary contact to the drive that will disable

drive operation when the disconnect opens.

(The wiring for this contact must not be run

in the same conduit as the drive output

wires.)

CAUTION:

If installing a SED2 VFD after prolonged

storage, see the SED2 VFD Startup,

Operation and Maintenance Manual for

Mechanical Installation procedures.

(Document Number 125-3201).

Installation

CAUTION:

Height above sea level:

If installing a SED2 VFD at an altitude higher

than 3,280 ft (1000 m), de-rating is required.

CAUTION: :

Never run control or drive input

wires in the same conduit as the

drive output wires

Cable Length

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 cable length is 164 ft (50 m).

• A load reactor is recommended for cable

distances

greater than

Keep the distance from the drive to the motor as

short as possible to maximize motor life.

164 ft (50 m).

Summary of content (11 pages)

PAGE 1
Installation Instructions Document No. 129-374 October 2, 2009 SED2 Variable Frequency Drives Conventional Bypass (C-Bypass) Options Product Description • Inverter duty motors are recommended. Install motors within their guidelines. Use dVd/dT filters, output reactors, or other load conditioners as applicable as applicable or as specified by the motor manufacturer.
PAGE 2
Document No. 129-374 Installation Instructions October 2, 2009 Dimensions Figure 1. C-Bypass Mounting and Overall Dimensions in Inches (Centimeters). Table 1. C-Bypass Approximate Weights. Frame Size Page 2 of 11 Wt. lb (kg) A 45 (20) B 55 (25) C 75 (34) D 150 (68) E 180 (82) F 470 (213) NOTE: Exact weight will be affected by actual horsepower/voltage and selected power options. http://www.siemens.com/hvp/drives Siemens Industry, Inc.
PAGE 3
Document No. 129-374 Installation Instructions October 2, 2009 Dimensions, Continued Figure 2. Frame Sizes A through C Conduit Location. Viewed from Bottom; Dimensions in Inches (Centimeters). Figure 3. Frame Sizes D and E Conduit Locations. Viewed from Bottom; Dimensions in Inches (Centimeters). Figure 4. Frame Size F Conduit Locations. Viewed from Top; Dimensions in Inches (Centimeters). Siemens Industry, Inc. http://www.siemens.
PAGE 4
Document No. 129-374 Installation Instructions October 2, 2009 Power Wiring NOTES: (#3 Drive parameters removed) 1. Branch circuit protection to be provided by installer, per UL508A, if not provided with drive. 2. If needed, use SBT-specified input line reactors to ensure a good impedance match with your drive. 3. Control and communication wiring should be 300V UL minimum. 4. Communication wiring should be run with maximum separation possible from all other wiring. 5.
PAGE 5
Document No. 129-374 Installation Instructions October 2, 2009 Power Wiring, Continued Figure 6. Routing of Power and Control Wiring for Frame Sizes A and B. Figure 7. Routing of Power and Control Wiring for Frame Sizes C, D, and E. Figure 8. Routing of Power and Control Wiring for Frame Size F. Siemens Industry, Inc. http://www.siemens.
PAGE 6
Document No. 129-374 Installation Instructions October 2, 2009 Wiring Diagrams Figure 9. C-Bypass 120 Vac Control Logic Page 6 of 11 http://www.siemens.com/hvp/drives Siemens Industry, Inc.
PAGE 7
Document No. 129-374 Installation Instructions October 2, 2009 Wiring Diagrams, Continued Figure 10. C-Bypass Terminations. Siemens Industry, Inc. http://www.siemens.
PAGE 8
Document No. 129-374 Installation Instructions October 2, 2009 Table 2. Wire Sizes and Tightening Torques for E-Bypass with 208V Drive. Circuit Breaker Part Number Bypass Frame HP Size kW Amps Disconnect Switch Wire Size * Torque, lb-in (Nm) Wire Size * VBE10.5---- A 0.5 0.37 2.3 14-10 Cu 32 (3.6) 18-10 VBE10.7---- A 0.7 0.55 3.0 14-10 Cu 32 (3.6) 18-10 VBE11.0---- A 1.0 0.75 3.9 14-10 Cu 32 (3.6) 18-10 VBE11.5---- B 1.5 1.1 5.5 14-10 Cu 32 (3.6) 18-10 VBE12.
PAGE 9
Document No. 129-374 Installation Instructions October 2, 2009 Table 3. Wire Sizes and Tightening Torques for C-Bypass with 230V to 240V Drive. Circuit Breaker Bypass Part HP Number Frame Size kW Amps Disconnect Switch Wire Size * Torque, lb-in (Nm) Wire Size * 80 (9) 12-1 3-3/0-3 Cu 80 (9) 12-1 6 - 350 kcmil Cu 6 - 350 kcmil Cu 120 - 275 (14 - 31.1) 120 - 275 (14 - 31.1) 6 - 350 kcmil 13 (1.5 - 1.7) 13 (1.5 - 1.7) 13 (1.5 - 1.7) 13 (1.5 - 1.7) 13 (1.5 - 1.7) 13 (1.5 - 1.7) 17 - 22 (1.9 - 2.
PAGE 10
Document No. 129-374 Installation Instructions October 2, 2009 Table 4. Wire Sizes and Tightening Torques for C-Bypass with 380V to 480V Drive. Circuit Breaker Part Number Bypass Frame HP Size kW Amps Disconnect Switch Wire Size * Torque, lb-in (Nm) Wire Size * VBA30.5---- A 0.5 0.37 1.1 14-10 Cu 32 (3.6) 18-10 VBA30.7---- A 0.7 0.55 1.6 14-10 Cu 32 (3.6) 18-10 VBA31.0---- A 1.0 0.75 2.1 14-10 Cu 32 (3.6) 18-10 VBA31.5---VBA32.0---- A A 1.5 2.0 1.1 1.5 3.0 3.
PAGE 11
Document No. 129-374 Installation Instructions October 2, 2009 Table 5. Wire Sizes and Tightening Torques for C-Bypass with 500V to 600V Drive. Circuit Breaker Part Number Bypass Frame HP Size kW Amps Wire Size * Disconnect Switch Torque, lb-in (Nm) Wire Size * VBA40.5---- C 0.5 0.37 .9 14-10 Cu 32 (3.6) 18-10 VBA40.7---- C 0.7 0.55 1.3 14-10 Cu 32 (3.6) 18-10 VBA41.0---- C 1.0 0.75 1.4 14-10 Cu 32 (3.6) 18-10 VBA41.5---- C 1.5 1.1 2.1 14-10 Cu 32 (3.6) 18-10 VBA42.