Siemens SED2 VFD User manual

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

SED2 VFD NEMA Type 3R and
Type 3R Harsh Environment
(3RHE) Bypass 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.
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.
Installation of these filters satisfies the requirements for the EU's EMC directive.
SERVICE STATEMENT
Control devices are combined to make a system. Each control device is mechanical in nature and all mechanical
components must be regularly serviced to optimize their operation. All Siemens Building Technologies, Inc. branch
offices and authorized distributors offer Technical Support Programs that will ensure your continuous, trouble-free
system performance.
For further information, contact your nearest Siemens Building Technologies, Inc. representative.
CREDITS
Product or company names mentioned herein may be the trademarks of their respective owners.
Copyright © 2009 by Siemens Building Technologies, Inc.
TO THE READER
Your feedback is important to us. If you have comments about this manual, please submit them to
sbt_technical.editor.u[email protected]
Printed in the U.S.A.

Table of Contents
Siemens Building Technologies, Inc. i
Table of Contents
How to Use this Manual................................................................................................1
Manual Organization..................................................................................................1
Manual Notations .......................................................................................................1
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
Inspection...................................................................................................................8
Dimensions and Weights ...........................................................................................9
Mounting ....................................................................................................................10
Wiring Connections....................................................................................................12
Motor Cable Length ...................................................................................................18
Access to SED2 Connection Terminals.....................................................................19
Startup Procedures.......................................................................................................26
Preparation ................................................................................................................26
Start-up ......................................................................................................................27
Quick Commissioning Procedure ..............................................................................31
Additional Parameter Settings ...................................................................................41
Flying Start ..............................................................................................................41
Automatic Restart....................................................................................................43
Vdc Controller..........................................................................................................46
Pulse Frequency .....................................................................................................47
Motor Data Identification .........................................................................................48
Reset to Factory Defaults........................................................................................50
Required SED2 Parameter Settings ..........................................................................51
Technical Specifications..............................................................................................52
Troubleshooting............................................................................................................54

How to Use this Manual
Siemens Building Technologies, Inc. 1
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.
•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.
•Installation provides mounting information and details on electrical connections.
•Startup Procedures provides step-by-step procedures to start up the NEMA Type 3R
and Type 3RHE Bypass.
•Technical Specifications lists NEMA Type 3R/3RHE Bypass specification data.
•Troubleshooting provides guidelines for troubleshooting the NEMA Type 3R/3RHE
Bypass.
Manual Notations
Notation Symbol Meaning
WARNING:
Indicates that personal injury/loss or life may occur if you do not
perform a procedure as specified.
CAUTION:
Indicates that equipment damage or loss of data may occur if you do
not perform a procedure as specified.
NOTES: (No symbol) Provides other important information or helpful hints.
Where To Send Comments
Your feedback is important to us. If you have comments about this manual, please submit
them to sbt_[email protected].

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
2 Siemens Building Technologies, Inc.
Reference Documents
The following SED2 VFD documentation is available from your local Siemens Building
Technologies representative:
•SED2 VFD Startup, Operation & Maintenance Manual (125-3201)
•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)

Safety Instructions
Siemens Building Technologies, Inc. 3
Safety Instructions
The following general 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.
WARNINGS:
•The SED2 uses hazardous voltages and controls potentially dangerous rotating
mechanical parts. Non-compliance with warnings or failure to follow the instructions
contained in this manual can result in loss of life, severe personal injury, or serious
damage to property/equipment.
•Only authorized personnel should work on this equipment, and only after becoming
familiar with all local regulations and ordinances; safety notices; and installation,
operation, and maintenance procedures in this manual. Successful and safe
operation of this equipment depends upon its proper handling, installation, operation,
and maintenance.
•Before carrying out any installation and commissioning procedures, you must read all
safety instructions and warnings, including all warning labels attached to the
equipment. Make sure that the warning labels are kept in a legible condition and
ensure missing or damaged labels are replaced.
•Observe the regulations of Safety Code VBG 4.0 (in particular, “Permissible
Deviations when Working with Live Parts”) whenever measuring or testing is
performed on live equipment. Also, use suitable NEMA Type 3R/3RHE Bypass and
SED2 tools.
•Use this equipment for only the purpose specified by the manufacturer. Unauthorized
modifications and the use of spare parts and accessories that are not sold or
recommended by the manufacturer of the equipment can cause fires, electric shocks,
and injuries.
•Prevent the general public from accessing or approaching this equipment.
NOTE: Keep these Operating Instructions near the equipment and available to all users.

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
4 Siemens Building Technologies, Inc.
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.
Drive
Motor
2 Contactor Bypass
Input
Device
Drive
Motor
3 Contactor Bypass
Input
Device
VFD0008R1
Figure 1. Functional Diagram of Typical NEMA Type 3R/3RHE Bypass.
The NEMA Type 3R/3RHE bypass consists of a SED2, NEMA Type 3R/3RHE bypass
enclosure, and controls. NEMA Type 3R/3RHE bypass components (Figure 2 and 4) include:
•Control terminal block
•"Drive-Off-Bypass" switch
•"Bypass On" light
•"Drive Test On-Off" switch (optional)
•Control Transformer
•Power fuses
•Relays
•Overload (current) relay
•Bypass Contactor
•Output Contactor
•Input Contactor (optional on the Type
NEMA 3R, standard on Type 3RHE)
•Motor Contactor
•Disconnect switch
•Heater

SED2 VFD NEMA Type 3R/3RHE Bypass Overview
Siemens Building Technologies, Inc. 5
BYPASS CONTACTOR
DISCONNECT SWITCH
GROUND LUGS
MOTOR OVERLOAD
BAFFLE
GROMMETS
HEATER
SED2 VFD
INPUT CONTACTOR
CONTROL TERMINAL BLOCK
OUTPUT CONTACTOR
LINE REACTOR
RELAYS
CONTROL TRANSFORMER
POWER FUSES
VFD0184R1
VFD0185R1
SED2 VFD
CONTROL TERMINAL BLOCK
BYPASS
CONTACTOR
DISCONNECT SWITCH
GROUND LUGS
MOTOR OVERLOAD
CONTROL TRANSFORMER
INPUT CONTACTOR
BAFFLE
GROMMETS
HEATER
LINE REACTOR
RELAYS
POWER FUSES
OUTPUT CONTACTOR
Enclosure 3R Frame ABC and 3RHE Frame Size B. Enclosure 3R Frame DE and 3RHE C and D.
SED2 VFD
INPUT CONTACTOR
BAFFLE
GROMMETS
HEATER
TERMINAL BLOCK
DISCONNECT SWITCH
GROUND LUGS
MOTOR OVERLOAD
OUTPUT CONTACTOR
BYPASS CONTACTOR
LINE REACTOR
CONTROL TRANSFORMER POWER FUSES
RELAYS
VFD0186R1
Enclosure Frame F.
Figure 2. Typical NEMA Type 3R/3RHE Bypass Components.
NOTE:
Control wiring should
be run with maximum
separation possible
from all other wiring.
* Components NOT
present in NEMA
Type 3RHE models.

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
6 Siemens Building Technologies, Inc.
NEMA Type 3R/3RHE Bypass Operation
Overview
NOTE: See Figure 6 for NEMA Type 3R/3RHE Bypass control terminals.
•Drive Mode
−Drive output contactor closes (and drive input contactor if supplied). The motor is
controlled by the SED2 output.
−Change the position of the Drive-Off-Bypass switch to OFF or the bypass stops
the SED2 by opening digital input 4, stop 3.
•Local Bypass Operation
−Requires a jumper between bypass control terminals 7 and 8. Jumper is supplied
from the factory.
−The system goes to bypass by closing the bypass contactor. The bypass
indicating light illuminates whenever the Drive-Off-Bypass switch is placed in the
BYPASS position.
−The motor is connected to utility/line power.
•Remote Bypass Operation
−Requires a jumper between bypass control terminals 5 and 6.
−Requires that the Drive-Off-Bypass switch be in the BYPASS position.
−The system goes to bypass by closing the bypass contactor and the bypass
indicating light illuminates whenever bypass control terminals 1 and 2 are closed
(Customer Remote Start Input).
−The motor is connected to utility/line power.
•Automatic Bypass Operation
−Requires wiring a normally open (NO) contact from DR1 to terminals 9 and 10.
−Requires wiring a normally closed (NC) contact from DR1 to terminals 11 and 12.
−Requires programming of P0731=52.3 and P0748= .
−Requires that the Drive-Off-Bypass switch be in the DRIVE position.
−The system goes to bypass by closing the bypass contactor and the bypass
indicating light illuminates whenever the drive registers a fault condition and
output relay No. 1 changes state.
−The motor is connected to utility/line power.

NEMA Type 3R/3RHE Bypass Operation Overview
Siemens Building Technologies, Inc. 7
−If remote bypass operation is also selected, the motor will not run on bypass until
the contact for the Customer Remote Start Input closes.
•Safety Input
−Requires a jumper between bypass control terminals 3 and 4. Jumper is supplied
from the factory.
−Contact must be closed for the motor to be run in either the drive or bypass
modes.
WARNING:
This contact disconnects the 120 Vac control power circuit.
•Essential Service Mode
−Closing terminals 13 and 16 forces the bypass contactor to close regardless of
the selected operation.
−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.

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
8 Siemens Building Technologies, Inc.
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.
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% non-condensing. Units with the HT1/HT2 designation in their
part number are rated to 122°F (50°C).
CAUTION:
1. When locating NEMA Type 3R/3RHE enclosure, make certain that the
heater/finger guard air inlet (Figure 4) is not blocked and that any
environmental substance (such as snow or sand) or other debris will not
potentially block the air inlet.
2. A heater is supplied with all outdoor enclosures to minimize the effects
of condensation. The heater is only powered when the main power to
the enclosure is on. If the unit has been de-energized for any period,
inspect for and rectify any condensation in the enclosure before
reapplying power.
3. 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.
Inspection
1. As you unpack the NEMA Type 3R/3RHE Bypass, check for shipping damage. In the
event of damage, contact the transport company.
2. Locate the NEMA Type 3R/3RHE Bypass nameplate and confirm that the unit is
configured to the installation requirements.
3. Verify that the delivery is complete. If not, contact the supplier.

Installation
Siemens Building Technologies, Inc. 9
Dimensions and Weights
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Figure 3. NEMA Type 3R Bypass Dimensions in Inches (Millimeters).
3RHE Frame Size B
34
(848)
18
(457)
29
(724)
30
(756)
VFD0222R1
Depth = 10 Inches
3RHE Frame Size C
VFD0225R1
42
(1051)
26
(660)
50
(1272)
51
(1288)
Depth = 11 Inches
ERHE Frame Size D
VFD0228R1
44
(1099)
28
(711)
56
(1424)
57
(1440)
Depth = 14 Inches
Figure 4. NEMA 3RHE Enclosure Dimensions in Inches (Millimeters).
Table 1. Type 3R Enclosure Approximate Weights
Frame Size Wt. Lb (kg)
ABC 130 (59)
DE 300 (136)
F 550 (249)
Table 2. Type 3RHE Enclosure Approximate Weights
Frame Size Wt. Lb (kg)
B 150 (68)
C 220 (100
D 330 (150)
NOTE: Exact weight will be affected by actual horsepower/voltage and selected power options
.

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
10 Siemens Building Technologies, Inc.
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.
2. Mount NEMA Type 3R/3RHE Bypass enclosure in location per job drawings.
•To ensure safe installation, verify that the surface of the mounting location is level.
•See Figure 3 for dimensions and see Table 1 for approximate weights.
•Make certain SED2 operator panel, bypass switches, and disconnect are accessible.
•Secure enclosure in place.
CAUTION:
Leave 1 foot (305 mm) between the NEMA Type 3R/3RHE Bypass and any
adjacent solid structure that is not used for mounting purposes.
Leave 3 feet (914 mm) between the NEMA Type 3R/3RHE Bypass and any
other NEMA Type 3R/3RHE Bypass or VFD.
3. Cooling/Filter Note:
The NEMA Type 3R/3RHE Bypass is supplied with an air filter that requires periodic cleaning and/or
replacement. The time period is determined by the mounting location and environmental conditions.
Ensure that you make filter maintenance part of an established maintenance schedule for your
installation.

Installation
Siemens Building Technologies, Inc. 11
BYPASS ON LIGHT
DRIVE-OFF-BYPASS SWITCH
DRIVE TEST ON-OFF SWITCH
DISCONNECT
SWITCH
FAN/FINGER
GUARD EXHAUST
HEATER/FINGER
GUARD AIR INLET CONDUIT LOCATION
(SHADED AREA ONLY)
1 (25)
1 (25)
1 (25)
12
(305)
DOOR ANTI-LOCK
DEFEATABLE MECHANISM
Figure 5. Enclosure 3R Frame ABC and 3RHE Frame B. Dimensions in Inches (Mm).
FAN/FINGER
GUARD EXHAUST
1 (25)
1 (25)
16
(406)
DISCONNECT
SWITCH
1 (25)
BYPASS ON LIGHT
DRIVE-OFF-BYPASS SWITCH
DRIVE TEST ON-OFF SWITCH
HEATER/FINGER
GUARD AIR INLET
DOOR ANTI-LOCK
DEFEATABLE MECHANISM
CONDUIT LOCATION
(SHADED AREA ONLY)
Figure 6. Enclosure 3R Frame DE and, 3RHE Frame C and D. Dimensions in Inches (Mm).
BYPASS ON LIGHT
DRIVE-OFF-BYPASS SWITCH
DRIVE TEST ON-OFF SWITCH
HEATER/FINGER
GUARD AIR INLET
FAN/FINGER
GUARD EXHAUST
19
(483)
1 (25)
1 (25)
1 (25)
DISCONNECT
SWITCH
DOOR ANTI-LOCK
DEFEATABLE MECHANISM
CONDUIT LOCATION
(SHADED AREA ONLY)
Figure 7. Enclosure Frame F. Dimensions in Inches (Mm).
NOTE: The Light/Switch location for Type 3RHE differs from the standard 3R frames as
shown above.

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
12 Siemens Building Technologies, Inc.
Wiring Connections
NOTE: See Figure 8 through Figure 13 for all NEMA Type 3R/3RHE Bypass wiring.
1. Do not mix control, motor, and input wiring in the same conduit. Run separate wire types
with maximum possible separation.
WARNING:
Failure to follow appropriate VFD wiring practice can result in sub-standard
system operation and may damage control components.
2. Route shielded, twisted pair, 24-gauge minimum cable for control wiring in separate
conduit into enclosure (Figure 11 through Figure 13). Connect control wiring per job
drawings and Figure 9.
NOTES:
•Terminate shield at control device.
•Control wiring is 12 to 26 AWG and tightening torque is 4.4 lb-in (0.5 Nm).
3. If applicable, route communications wiring (P1) in separate conduit into enclosure (Figure
11 through Figure 13). Continue to route communications wiring to VFD and terminate
per SED2 VFD Startup, Operation, and Maintenance Manual, (125-3201).
CAUTION:
If applicable, route communications wiring with maximum separation from all
other wiring. If wiring through bypass enclosure, run communication wiring
with maximum separation possible from all other wiring.
4. Route motor wiring in separate conduit into enclosure (Figure 11 through Figure 13).
Connect motor wiring to motor overload and ground lug. See Tables 2 through 5 for wire
sizes and tightening torques.
5. Route input power wiring in conduit into enclosure (Figure 11 through Figure 13).
Connect input power wiring to disconnect switch and ground lug or to circuit breaker and
ground lug. See Table 3 through Table 6 for wire sizes and tightening torques.
WARNING:
Use only permanently wired input power connections.