Toshiba Q7 Flow User manual

Q7 Adjustable Speed Drive
Installation and Operation
Manual
Document Number: 54963-000
Date: November 2003
Reliability in motion

About This Manual
This manual was written by the Toshiba Technical Publications Group. This group is tasked with providing
technical documentation for the Q7 Adjustable Speed Drive. Every effort has been made to provide accurate
and concise information to you, our customer.
TOSHIBA is a registered trademark of the Toshiba Corporation.
All other product or trade references appearing in this manual are registered trademarks of their respective
owners.
The information in this manual is subject to change without notice.
Toshiba International Corporation (TIC) shall not be liable for technical or editorial omissions or
mistakes in this manual, nor shall it be liable for incidental or consequential damages resulting from the
use of information contained in this manual.
This manual is copyrighted. No part of this manual may be photocopied or reproduced in any form without the
prior written consent of Toshiba International Corporation.
Email your comments, questions, or concerns about this publication to
[e-mail].
Contacting Toshiba’s Customer Support
Center
Toshiba’s helpful Customer Support Center has been rated among the best in the industry and can be contacted
to obtain assistance in resolving any Q7 Adjustable Speed Drive system problem that you may experience or
to provide application information.
The center is open from 8 a.m. to 5 p.m. (CST), Monday through Friday. The Support Center’s toll free
number is US [phone]/Fax [phone] — Canada [phone].
You may also contact Toshiba by writing to:
Toshiba International Corporation
13131 West Little York Road
Houston, Texas 77041-9990
Attn: ASD Product Manager.
For further information on Toshiba’s products and services, please visit our website at TIC.TOSHIBA.COM.
© Copyright 2003 Toshiba International Corporation.
All rights reserved.
Printed in the U.S.A.

Introduction
Congratulations on the purchase of the new Q7 Adjustable Speed Drive (ASD). The Q7 ASD is a solid-state
AC drive. The Q7 ASD is ideally suited to drive the variable torque load in your HVAC system. Toshiba’s
technology, quality, and reliability enables the motor to develop good torque and provide compensation for
motor slip, which results in smooth, quick starts and highly efficient operation. The Q7 ASD uses digitally-
controlled pulse width modulation. The programmable functions may be accessed via the easy-to-use menu.
These features, combined with Toshiba’s high-performance software, delivers unparalleled motor control and
reliability. The Q7 ASD is also compatible with Windows CE®and PALM®.
The Q7 ASD is a very powerful tool,yet surprisingly simple to operate. The Q7 ASD has an easy-to-read LCD
screen that provides easy access to the many monitoring and programming features of the Q7 ASD.
The motor control software is menu-driven, which allows for easy access to the motor control parameters and
quick changes when required.
To maximize the abilities of your new Q7 ASD, a working familiarity with this manual will be required. This
manual has been prepared for the Q7 ASD installer/operator.
Whether you are using the Q7 ASD Power Unit or the Integrated Enclosure, both are truly
Reliability in motion.
This Manual’s Purpose and Scope
This manual provides information that will assist the qualified installer/operator in the safe installation and
operation of the Q7 ASD.
This manual provides information on the various features that pertain to the installation and operation of this
powerful cost-saving device and is applicable to the Q7 ASD only.
Important Notice
This manual may not cover all of the variations of ASD applications, nor may it provide information on every
possible contingency concerning installation.
The contents of this manual shall not become a part of or modify any prior agreement, commitment, or
relationship between the customer and Toshiba International Corporation. The sales contract contains the
entire obligation of Toshiba International Corporation. The warranty contained in the contract between the
parties is the sole warranty of Toshiba International Corporation's ASD Division and any statements contained
herein do not create new warranties or modify the existing warranty.
Any electrical or mechanical modifications to this equipment without prior written consent of Toshiba
International Corporation will void all warranties and may void the UL/CUL listing or other safety
certifications. Unauthorized modifications may also result in equipment damage or personal injury.

TOSHIBA INTERNATIONAL CORPORATION
Q7 Adjustable Speed Drive
Please complete the Warranty Card supplied with the ASD and return it to Toshiba by prepaid mail. This will
activate the 12 month warranty from the date of installation; but, shall not exceed 18 months from the date of
purchase.
Complete the following information about the drive and retain it for your records.
Q7 Model Number:
Q7 Serial Number:
Project Number (if applicable):
Date of Installation:
Inspected By:
Name of Application:

Table of Contents
Q7 ASD Installation and Operation Manual i
Safety Precautions ...................................................................................................................1
Installation Precautions ...................................................................................................... 2
Maintenance Precautions .................................................................................................... 3
Service Life Information ............................................................................................. 3
Adjustable Speed Drive Inspection .................................................................................... 4
Storage ................................................................................................................................ 4
Disposal .............................................................................................................................. 4
Device Types and Installation ................................................................................................. 5
Installation and Connections .............................................................................................. 5
Installation Notes ................................................................................................................ 5
Mounting the ASD ............................................................................................................. 8
Connecting the ASD ........................................................................................................... 8
System Grounding ....................................................................................................... 8
Power Connections .....................................................................................................9
Startup and Test .......................................................................................................... 9
System Protection Features and Setup ................................................................................ 10
ASD Protection ................................................................................................................10
Motor Protection .............................................................................................................. 10
Motor Protection .......................................................................................................10
Lead Length Specifications ....................................................................................... 13
I/O and Control ...................................................................................................................... 14
Typical Q7 ASD Connection Diagram ............................................................................. 15
Q7 Integrated Enclosure Theory of Operation ................................................................. 16
Stage 1 Function ........................................................................................................ 16
Stage 2 Function ........................................................................................................ 16
Stage 3 Function ........................................................................................................ 16
Q7 Integrated Enclosure/ASD Connection Diagram ....................................................... 18
Q7 Keypad and Integrated Enclosure Control Panel Information .................................. 19
Q7 Keypad Features ......................................................................................................... 19
Q7 Keypad Operation .......................................................................................................20
Q7 Integrated Enclosure Control Panel Features ............................................................. 21
System Configuration and Menu Options ........................................................................... 23
Root Menus ...................................................................................................................... 23
Output Frequency Screen .......................................................................................... 23
Setup Screen .............................................................................................................. 23
Program Menu ........................................................................................................... 23
Monitor Mode ........................................................................................................... 24
Menu Navigation ................................................................................................................... 25
System Operation .................................................................................................................. 32
Operation (Local) ............................................................................................................. 32
Default Setting Changes ................................................................................................... 32
Search (for default setting changes) .......................................................................... 33
Parameter Descriptions .........................................................................................................34

ii Q7 ASD Installation and Operation Manual
Enclosure Dimensions and Conduit Plate Information ..................................................... 48
Enclosure Dimensions/Weights ................................................................................ 49
Conduit Box Information .................................................................................................56
Cable/Terminal Specifications .............................................................................................. 57
Current/Voltage Specifications ............................................................................................. 60

Q7 ASD Installation and Operation Manual 1
Safety Precautions
Rotating shafts and electrical equipment can be hazardous. Installation, operation, and maintenance
shall be performed by Qualified Personnel only.
Qualified Personnel shall be:
• Familiar with the construction and function of the ASD, the equipment being driven, and the
hazards involved.
• Trained and authorized to safely clear faults, ground and tag circuits, energize and de-energize
circuits in accordance with established safety practices.
• Trained in the proper care and use of protective equipment in accordance with established safety
practices.
• Able to recognize and properly address hazards associated with the application of motor-driven
equipment.
Installation of ASD systems should conform to the 2002 National Electrical Code Article 110 (NEC)
(Requirements For Electrical Installations), all regulations of the Occupational Safety and Health
Administration, and any other applicable national, regional, or industry codes and standards.
• Ensure that the Run functions (F, R, Preset Speed, etc.) of the ASD are off before performing a
Reset. The post-reset settings may allow the ASD to start unexpectedly.
• In the event of a power failure, the motor may restart after power is restored.
•Retry or Reset settings may allow the motor to start unexpectedly. Warnings to this effect should
be clearly posted near the ASD and motor.
DO NOT install, operate, perform maintenance, or dispose of this equipment until you have read and
understood all of the product warnings and user directions. Failure to do so may result in equipment
damage, operator injury, or loss of life.
Lock out and tag out all power feeding the enclosure before opening the door of the enclosure.
DANGER!

2Q7 ASD Installation and Operation Manual
Installation Precautions
• Use lockout/tagout procedures on the branch circuit disconnect feeding the enclosure before
installing or servicing the ASD.
•Do Not mount the device in a location that would produce catastrophic results if it were to fall from
its mounting location (equipment damage or injury).
• Select a mounting location that is easily accessible by the user.
• Avoid installation in areas where vibration, heat, humidity, dust, metal particles, or high levels of
electrical noise (EMI) are present.
• Do not install the ASD where it may be exposed to flammable chemicals or gasses, water, solvents,
or other fluids.
• Always ground the unit to prevent electrical shock to personnel and to help reduce electrical noise.
The input, output, and control power cables are to be run separately and each shall have its own
ground cable.
Note: Conduit is not an acceptable ground.
• Ensure that the 3 phase input power is Not connected to the output of the ASD. This may destroy
the ASD and may cause injury to personnel.
•Do Not connect resistors across terminals PA – PC or PO – PC. This may cause a fire.
• Do not install the ASD if it is damaged or if it is missing any component(s).
• Turn the power on only after attaching the front cover.
It is the responsibility of the person installing the ASD or the electrical maintenance personnel to setup
the Emergency Off braking system of the ASD. The function of the Emergency Off braking function
is to remove output power from the drive in the event of an emergency. A supplemental braking system
may also be engaged in the event of an emergency.
Note: A supplemental emergency stopping system should be used with the ASD. Emergency
stopping should not be a task of the ASD alone.
It is the responsibility of the person installing the ASD or the electrical maintenance personnel to
provide proper grounding and branch circuit protection in accordance with the 2002 NEC and
applicable local codes.
Adequate working space and illumination must be provided for adjustment, inspection, and
maintenance of the ASD (see 2002 NEC Article 110-16).
A noncombustible insulating floor or mat should be provided in the area immediately surrounding the
electrical system.
Follow all warnings and precautions and do not exceed equipment ratings.
Ensure the correct phase sequence and the desired direction of motor rotation in the Bypass mode.
If using multiple motors provide separate overload protection for each motor and use V/f control.
See the section titled Installation and Connections on pg. 5 for additional information on installing the
drive.
External dynamic braking resistors must be thermally protected.
DANGER!

Q7 ASD Installation and Operation Manual 3
Maintenance Precautions
• Use lockout/tagout procedures on the upstream branch circuit disconnect before servicing the ASD
or connected load. Turning off the enclosure breaker is not sufficient to protect service personnel.
• The ASD maintains a residual charge for a while after the circuit breaker (MCP) is switched off.
Wait at least five minutes before servicing the ASD after removing power from the ASD. Ensure
that the Charge LED is off.
• Ensure that the Charge Indicator and the MCP are off before performing an inspection or
maintenance.
•Do Not attempt to disassemble, modify, or repair the ASD. Call your Toshiba sales representative
for repair information.
• Do not place any objects inside of the ASD.
• Turn the power on only after attaching the front cover and Do Not remove the front cover of the
ASD when the power is on.
• If the ASD should emit smoke or an unusual odor or sound, turn the power off immediately.
• The heat sink and the discharge resistors may become extremely hot to the touch. Allow the unit to
cool before coming in contact or performing service on these items.
• Remove power from the ASD during extended periods of non-use.
• The system should be inspected periodically for damaged or improperly functioning parts,
cleanliness, and to ensure that the connectors are tightened securely.
• Replace damaged components and ensure proper system grounding before blown fuse replacement.
Service Life Information
Part Name Service Life Remarks
Large Capacity Electrolytic Capacitor 5 Years When not used for long periods, charge semi-annually.
Cooling Fan 26,000 Hours
CN Connectors 100 Connects/Disconnects
On-board Relays 500,000 Actuations
DANGER!

4Q7 ASD Installation and Operation Manual
Adjustable Speed Drive Inspection
Upon receipt, perform the following checks:
• Inspect the unit for shipping damage.
• Check for loose, broken, or damaged parts.
• Ensure that the rated capacity and the model number specified on the nameplate conform to the
order specifications.
Report any discrepancies to your Toshiba sales representative.
Storage
Store the device in a well ventilated location (in its shipping carton is recommended).
Avoid storage locations of extreme temperatures, high humidity, dust, or metal particles.
Disposal
Do not dispose of the unit via incineration.
Contact the local or state environmental agency in your area for details on the proper disposal of
electrical components and packaging.

Q7 ASD Installation and Operation Manual 5
Device Types and Installation
The Q7 Adjustable Speed Drive is available in two system configurations: the stand-alone ASD unit
housed within a plastic enclosure and the stand-alone unit enclosed within the Integrated Enclosure.
The available Q7 ASD typeforms and HP ranges for the 230, 460, and the 600 volt units are listed in the
section titled Current/Voltage Specifications on pg. 60.
The Integrated Enclosure configuration includes an increased-sized enclosure, bypass circuitry, and
system protection hardware as standard features. Both systems perform all of the ASD functions that
Toshiba has become known for including the ability to run at 110 % for up to 60 seconds. The Q7 ASD
has the added advantage of being offered at a significantly reduced cost when compared to comparably
sized ASD units.
Installation and Connections
The Q7 Adjustable Speed Drive may be set up initially by performing a few simple configuration
settings. To operate properly, the ASD must be securely mounted and connected to a power source (3-
phase AC input at the L1/R, L2/S, and L3/T terminals). The control terminals of the ASD may be used
by connecting the terminals of the Control Terminal Strip to the proper sensors or signal input sources
(see the section titled I/O and Control on pg. 14 for an expanded description of the system control
options).
The output terminals of the ASD (T1/U, T2/V, and T3/W) must be connected to the motor that is to be
controlled.
See Figure 6 on pg. 15 for the connection diagram of the stand-alone Q7 ASD and Figure 8 on pg. 18
for the connection diagram of the Q7 Integrated Enclosure configuration.
As a minimum, the installation of the ASD shall conform to Article 110 of the 2002 NEC, the
Occupational Safety and Health Administration requirements, and to any other local and regional
industry codes and standards.
Installation Notes
When a brake-equipped motor is connected to the ASD, it is possible that the brake may not release at
startup because of insufficient voltage. To avoid this, Do Not connect the brake or the brake contactor to
the output of the ASD.
Do Not apply commercial power to the output terminals T1/U, T2/V, or T3/W.
If an output contactor is used for bypass operation, it must beinterlocked such that commercial power is
never applied to the output terminals of the ASD (T1/U, T2/V, or T3/W).
If a secondary magnetic contactor (MC) is used between the output of the ASD and the motor, it should
be interlocked such that the ST – CC terminals are disconnected before the output contactor is opened.
Do Not open and then close a secondary magnetic contactor between the ASD and the motor unless the
ASD is off and the motor is not rotating.
Note: Re-application of power via a secondary contact whilethe ASD is on or while the motor
is still turning may cause ASD damage.
On some devices the ST-to-CC connection is further enhanced by the operation of the MS1 AUX relay
circuit (see Figure 1 on pg. 6). The MS1 AUX relay circuit is normally open and closes the ST-to-CC
connection (via ST1) only after normal system power is available. The MS1 AUX relay circuit
prohibits the ST-to-CC connection in the event that the MS1 contactor fails to close during start up or if

6Q7 ASD Installation and Operation Manual
MS1 opens while the ASD is running. For the 230 volt ASD this feature is available on the 30 HP
system, on the 460 and 600-volt ASD’s this feature is available on the 75 HP and above systems.
Figure 1. MS1 AUX Circuit Configuration.
The motor circuit protector (MCP) that is used on the L1, L2, and L3 input power lines has a Shunt
Trip feature (optional) which may be used to further enhance the system protection function of the Q7
ASD. The Shunt Trip feature may be connected such that the L1, L2, and L3 MCP may be opened by
a state change of another circuit. If another circuit is experiencing a problem which warrants a system
shutdown, the L1, L2, and L3 MCP will be opened by opening the Shunt Trip circuit. During normal
operation the Shunt Trip circuit is closed.
The Q7 ASD is shipped with jumpers connected to the following terminals:
ST to CC (coasts to stop if removed),
S4 to CC (Emergency Off trip if removed),
CIA to CIB (Test mode operation only), and
DRA to DRB (Disables the ASD mode and Bypass mode if open).
All four jumper connections are required for normal operation of the Q7 ASD while in the default
settings configuration (see the section titled Default Setting Changes on pg. 32 for information on
changing the default settings and section Q7 Integrated Enclosure Theory of Operation on pg. 16 for
jumper requirement information).
The ASD input voltage should remain within 10% of the specified input voltage range. Input voltages
approaching the upper or lower limit settings may require that the overvoltage and undervoltage stall
protection level parameters be adjusted. Voltages outside of the permissible tolerance should be
avoided.
The input power frequency should be ±2 Hz of the specified input frequency.
Do not use an ASD with a motor that has a higher power rating than the rated output of the ASD.
The ASD is designed to operate NEMA B motors. Consult with your sales representative before using
the ASD for special applications such as with an explosion-proof motor or applications with a piston
load.
Disconnect the ASD (or isolate via contactors) from the motor before megging or applying a bypass
voltage to the motor.
Interface problems may occur when the Q7 ASD is used in conjunction with some types of process
controllers. Signal isolation may be required to prevent controller and/or ASD malfunction. The Q7
ASD option, ASD-ISO-1, provides isolation of the Control Board output circuit from the AM/FM
output and from the II input (for further information on the ASD-ISO-1 option contact your Toshiba
sales representative or contact the manufacturer of the process controller for additional information on
controller compatibility and signal isolation).
Use caution when setting the output frequency. Over speeding a motor decreases its ability to deliver
torque and may result in damage to the motor and/or the driven equipment.
All Q7 ASDs are equipped with internal DC bus fuses. However, not all Q7 ASDs are equipped with
internal primary power input fuses (HP dependent). When connecting two or more drives that have no
internal fuse to the same power line as shown in Figure 2 on pg. 7, it will be necessary to select a circuit-

Q7 ASD Installation and Operation Manual 7
breaking configuration that will ensure that if a short circuit occurs in ASD 1, only MCCB2 trips, not
MCCB1. If it is not feasible to use this configuration, insert a fuse between MCCB2 and ASD 1.
Figure 2. Circuit breaker configuration.

8Q7 ASD Installation and Operation Manual
Mounting the ASD
The ambient operating temperature rating for the Q7 is from 14 to 104° F (-10 to 40° C). The process of
converting AC to DC, and then back to AC produces heat. During normal ASD operation, up to 5% of
the input energy to the ASD may be dissipated as heat.
The stand-alone ASDs that are housed in the plastic enclosure should be installed securely using the
four mounting holes on the rear of the ASD in a well ventilated area that is out of direct sunlight.
When installing multiple stand-alone ASDs, ensure that there is a clearance space of at least 8 inches
(20 cm) from the top and the bottom of adjacent units. There should be at least 2 inches (5 cm) on either
side of adjacent units. For the models below 50 HP the top and bottom clearance specifications may be
reduced to 4 inches (10 cm). This space ensures that adequate ventilation is provided (see the section
titled Enclosure Dimensions and Conduit Plate Information on pg. 48 for additional information on
mounting space requirements).
Note: Ensure that the ventilation openings are not obstructed.
Do Not operate the ASD with the enclosure door open.
ASDs produce high-frequency noise — steps must be taken during installation to avoid the negative
effects of noise. Listed below are some examples of measures that will help to combat noise problems.
• Separate the input and output power conductors of the main circuit. Do not install the input and
output wires in the same duct or in parallel with each other, and do not bind them together.
• Do not install the input or output power conductors of the main circuit and the wires of the control
circuit in the same duct or in parallel with each other, and do not bind them together.
• Use shielded wires or twisted wires for the control circuits.
• Ensure that the grounding terminals (G/E) of the ASD are securely connected to ground.
• Connect a surge suppressor to every electromagnetic contactor and every relay installed near the
ASD.
• Install noise filters as required.
Connecting the ASD
Refer to the section titled Installation Precautions on pg. 2 and the section titled Lead Length
Specifications on pg. 13 before attempting to connect the ASD and the motor to electrical power.
System Grounding
Proper grounding helps to prevent electrical shock and to reduce electrical noise. The ASD is designed
to be grounded in accordance with Article 250 of the 2002 NEC or Section 10/Part One of the
Canadian Electrical Code (CEC).
The grounding conductor shall be sized in accordance with Article 250-122 of the NEC or Part One-
Table 6 of the CEC.
Note: The metal of conduit is not an acceptable ground.
The input, output, and control lines of the system shall be run in separate metal conduits and each shall
have its own ground conductor.
Caution!
DANGER!

Q7 ASD Installation and Operation Manual 9
Power Connections
L1/R, L2/S, and L3/T are the 3-phase input supply terminals for the Q7 ASD and are located on the top
of the breaker for the Integrated Enclosure ASD.
T1/U, T2/V, and T3/W are the output terminals of the ASD that connect to the motor.
An inductor may be connected across terminals PA and PO to provide additional filtering. When not
used, a jumper is connected across these terminals (see Figure 6 on pg. 15).
Connect the input and output power lines of the stand-alone ASD as shown in Figure 3. See Figure 8 on
pg. 18 for information on the connection of the ASD when using the Integrated Enclosure
configuration.
Note: In the event that the motor rotates in the wrong direction when powered up, reverse any
two of the three ASD output power leads connected to the motor.
Note: The connection diagram of Figure 3 is not appropriate for the Q7 Integrated Enclosure
system. See the section titled Q7 Integrated Enclosure Theory of Operation on pg.16 for
Q7 ASD Bypass system operation information.
Figure 3. Simplified stand-alone ASD/Motor connection diagram.
Connect the 3-phase input power to the input terminals of the ASD at L1/R, L2/S, and L3/T. Connect
the output of the ASD to the motor from terminals T1/U, T2/V, and T3/W. The input and output
conductors and terminal lugs used shall be in accordance with the requirements listed in Cable/Terminal
Specifications on pg. 57.
If conductors smaller than the recommended sizes are used in parallel for the input or output power,
each branch of the parallel set shall have its own conduit and not share its conduit with other parallel
sets (i.e., place U1, V1, and W1 in one conduit and U2, V2, and W2 in another conduit).
Note: National and local codes should be referenced when running more than three
conductors in the same conduit.
Install a molded case circuit breaker (MCCB) or fusebetween the 3-phase power source and the ASD in
accordance with the 2002 NEC Article 430-102 through 430-111 and the Fault Current setting of the
ASD (see Electronic Thermal Protection 1 on pg. 36).
For 600 volt ASDs, the 15 HP or less drives (P/N VT130Q7U6015 – 6160) require a class-J fuse rated
at 600 Volts/30 A.
Startup and Test
Before turning on the unit, the following checks are to be performed by Qualified Personnel:
•L1/R, L2/S, and L3/T are connected to the 3-phase input power.
•T1/U, T2/V, and T3/W are connected to the motor.
• The 3-phase input voltage is within the ASD setup tolerances.
• There are no shorts and all grounds are secured.
• Check the motor rotation direction in the Bypass mode and the ASD-driven mode.
DANGER!

10 Q7 ASD Installation and Operation Manual
System Protection Features and Setup
The Q7 ASD uses protection features that are designed to protect the ASD and to protect the motor from
overload/overcurrent damage. Because of the different types of abnormal conditions that may occur (e.g.,
inrush current, short circuit current, extended overloads, etc.), instantaneous and overcurrent protective
devices have ben provided. Both protection mechanisms require an application-specific adjustment for
performance optimization and the minimization of nuisance tripping.
ASD Protection
The Q7 ASD is designed and manufactured to accommodate a wide range of voltage and current
requirements; from the 0.75 HP to the 350 HP ASD (Typeform). Each ASD is equipped to operate at
100% output continuously and can operate at 110% for 60 seconds. A trip will be incurred if the design
specifications are exceeded for a given ASD.
ASD overload protection is accomplished via the ASD software which can be configured to disable the
system in the event of an overload. Using the Electronic Thermal Protection setting, the ASD may be
properly matched to the motor being driven and the application.
The short circuit protection, which is provided by hardware and software, disables the system in the event
of a fault.
Motor Protection
Motor circuit protection is accomplished using circuit breakers that have adjustable trip thresholds to
properly match the motor being driven and the application. The circuit breakers are set to the minimum
current value of the circuit breaker at the factory and must be set for the motor being used and to properly
match the requirements of the application.
The motor protection hardware is comprised of a Motor Circuit Protector (MCP) (see Figure 4 on pg.
11) at the 3-phase system input and an Overload Circuit Protector (OCP) connected to the motor (see
Figure 5 on pg. 12). See Figure 8 on pg. 18 for the schematic representation and electrical location of the
MCP and the OCP circuit breakers.
Motor Protection
Read and understand all safety warnings before operating this equipment!
MCP Adjustment Setting
The trip threshold of the MCP is set to the lowest setting when the productships from the factory. Refer to
NEC Table 430-152 for recommendations on establishing the proper MCP setting for a given application.
When using a Design E motor, the setting for the instantaneous trip circuit breaker shall not be more than
1100% of the full-load input current. The maximum setting for a motor, other than Design E, shall be
800% of the input current. This is done to ensure that the protection does not activate while starting the
motor, but is able to provide adequate protection for a fault condition.

Q7 ASD Installation and Operation Manual 11
Figure 4. MCP Adjustment.
Set to minimum at the
factory. Application-specific
adjustment is required.

12 Q7 ASD Installation and Operation Manual
OCP Setting
There are two operating modes for the motor: ASD-driven and Bypass. When the motor is being driven
by the ASD, overcurrent protection and extended overload protection is accomplished via the Electronic
Thermal Protection setting of the ASD. Set this parameter as a ratio of the FLA of the ASD to the FLA
of the motor.
When operating in the Bypass mode, the OCP setting should allow for the high inrush current of startup
and the short-time overload current of high-inertia loads and not be set so high as to provide inadequate
overcurrent protection. The OCP should be set to a level that is just above the maximum level of the
application’s requirements.
For large motor applications, a motor starter is recommended.
Figure 5. Motor OCP Adjustment and OCP Contactor.
NC contacts are closed
during normal operation.
The NC contacts open
during an overload trip.
Normally Open (NO)
contacts are unused. NO
contacts may be used with
ancillary circuit to annunciate
an overload trip.
Set to minimum at the
factory. Application-
specific adjustment is
required.

Q7 ASD Installation and Operation Manual 13
Lead Length Specifications
Adhere to the NEC and any local codes during the installation of ASD/Motor systems. Excessive lead
lengths may adversely effect the performance of the motor. Special cables are not required.
Lead lengths from the ASD to the motor in excess of those listed in Table 1 may require filters to be added
to the output of the ASD. Table 1 lists the suggested maximum lead lengths for the listed motor types.
Contact Toshiba for application assistance when using lead lengths in excess of those listed.
Exceeding the peak voltage rating or the allowable thermal rise time of the motor insulation will reduce
the life expectancy of the motor.
Table 1.
Model PWM Carrier
Frequency Suggested Maximum Lead Distance
230 Volt All 1000 feet
460 Volt < 5 kHz 600 feet
≥ 5 kHz 300 feet
600 Volt < 5 kHz 200 feet
≥ 5 kHz 100 feet

14 Q7 ASD Installation and Operation Manual
I/O and Control
The ASD can be controlled by several input types and combinations thereof, as well as operate within a
wide range of voltage levels. This section discusses the ASD control methods and supported I/O
functions.
The Control Terminal Strip PCB (P/N 48570) of the stand-alone unit and the Control Terminal Strip
PCB (P/N 53750) for the Integrated Enclosure configuration support discrete and analog I/O
functions. Table 2 lists the names, the default settings (where applicable), and the descriptions of the
input and output terminals of the Control Terminal Strip PCB for both systems.
Figure 6 on pg. 15 and Figure 8 on pg. 18 show the basic connection diagrams for the Q7 systems.
Table 2. Input terminal names and functions.
Terminal
Name Input/Output Default Function (for programmable terminals)
ST Discrete Input Standby — Multifunctional programmable discrete input (jumper to CC to operate the unit).
RES Discrete Input Reset — Multifunctional programmable discrete input.
FDiscrete Input Forward — Multifunctional programmable discrete input.
RDiscrete Input Reverse — Multifunctional programmable discrete input.
S1 Discrete Input Fire Speed — Multifunctional programmable discrete input (Preset Speed 1 = Fire Speed).
S2 Discrete Input Preset Speed 2 — Multifunctional programmable discrete input.
S3 Discrete Input Preset Speed 3 — Multifunctional programmable discrete input.
S4 Discrete Input Emergency Off — Multifunctional programmable discrete input (jumper to CC to operate the unit).
*CIA/CIB Discrete Input Customer Interlock — Discrete input (C1A to C1B required to operate the unit).
*DRA/DRB Discrete Input Damper Response — 120 VAC switching circuit that provides the damper open/close status to the
ASD (DRA to DRB connection required to operate the ASD).
RR Analog Input RR — Multifunction programmable analog input (0.0 to 10 volt input — 0 to 80 Hz output).
RX Analog Input RX — Multifunctional programmable analog input (-10 to +10 VDC input — -80 to +80 Hz output).
II Analog Input II — Multifunctional programmable analog input (4 to 20 mADC input — 0 to 80 Hz output).
VI Analog Input VI — Multifunctional programmable analog input (0 to 10 VDC input — 0 to 80 Hz output).
P24 DC Output 24 VDC @ 50 mA output.
PP DC Output PP — 10.0 VDC voltage source for the external potentiometer.
OUT1-A Discrete Output Low — Output is below the programmed frequency. Changes state when the output is no longer
below the programmed frequency.
OUT1-C Discrete Output
OUT2-A Discrete Output Acc/Dec Complete — Changes state when the programmed acceleration or deceleration ramp has
completed.
OUT2-C Discrete Output
FLA Discrete Output Fault Relay - rated at 2A/250 VAC (N.O.). Energized at power up (closed during normal operation).
FLB Discrete Output Fault Relay - rated at 1A/250 VAC (N.C.).
FLC Discrete Output Fault Relay - rated at 2A/250 VAC (common).
FP Output Frequency Pulse — an output pulse train that has a frequency which is based on the output
frequency of the ASD.
AM Output Produces an output current that is proportional to the magnitude of the function assigned to either of
these terminals.
FM Output
CC —Control common (Do Not connect to Earth Gnd).
Discrete Input Terminals ⇒ On = connected to CC.
Note: Multifunctional discrete terminals are shown in the default setting condition.
*Available on the 53750 PCB of the Integrated Enclosure only.