VTAC 9 AC Drive
Firmware Version 3.xx
Designed to Meet Worldwide Standards
• Agency Certification
– Listed to UL508C and CAN/CSA-C2.2
– Listed to UL508C for plenums
– Marked for applicable European Directives
• Designed to meet the appropriate portions of the following specifications:
– NFPA 70 – US National Electrical Code
– NEMA ICS 3.1 – Safety standards for Construction and Guide for Selection,
Installation and Operation of Adjustable Speed Drive Systems
– IEC 146 – International Electrical Code
– Seismic requirements of the 2003 International Building Code as specified by
AC156
Specifications
• Ratings:
– 2-100HP (208V ac)
– 3-200HP (480V ac)
• Short Circuit Rating:
– 200,000Amps Symmetrical
• Efficiency:
– 97.5% at rated amps, nominal line voltage
• Displacement Power Factor:
– 0.98 across speed range
• Carrier (PWM) Frequency:
– 2 to 10kHz (drive rating based upon 4kHz)
Control I/O
Digital Inputs
(Run, Clear Fault, Enable,
Purge, PI Enable, Etc.)
Relay Outputs
(Fault, Run, Ready, Alarm, At
Speed, Current Limit, Etc.)
Analog Inputs
(Speed Reference, PI
Feedback, Etc.)
Analog Outputs
(Output Freq, Output Amps,
Output Power, PI Ref, Etc.)
2 – 25HP @ 208V ac
3 – 50HP @ 480V ac
30 – 100HP @ 208V ac
60 – 200HP @ 480V ac
(frames B, C, D, E)
(frames 4, 5, 6)
(6) Programmable, 24VDC
(6) Programmable, 24VDC
(2) Programmable Form C
(2) Programmable Form C
(1) Non-Isolated (voltage or current)
(1) Isolated, Bipolar (voltage or current)
(2) Isolated, Bipolar (voltage or current)
(1) 0-10VDC
(1) Bipolar +/-10V or 4-20mA
Hardware Features – Filtering
• EMC Filtering
– Supplied with all ratings
– Internal Filter allows EN61800-3 Second Environment Levels to be met
• Common Mode Filtering
– Common mode cores supplied with all ratings – help attenuate common mode noise
– Common mode capacitors supplied with all ratings – provide low impedance path
World Class Motor Protection
• Reflected Wave issues (also known as Standing Wave or transmission Line
Effect) have been well documented in IGBT based drives
• This phenomenon can cause significant voltage peaks at the motor that
present the possibility for insulation breakdown
• Rockwell Automation engineers have devoted years of research to develop
industry-leading solutions for VTAC Drives
– This has resulted in patented Software &
Hardware features that protect motors
with long motor leads
– Each pulse is measured and controlled to
avoid collisions with other reflected
voltage pulses thus minimizing voltage
amplification
– These solutions are supported with
hundreds of hours of lab tests!
Hardware Features – Internal Bus Inductor
• Provided with Every Rating:
– 3% (min) 7.5 - 50HP @ 480V ac
– 5% (min) 60 - 200HP @ 480Vac
Current distortion (TDD)
• Supplied in pos. & neg. leg
• Reduces Harmonics
• Helps with transient
protection
• Effective Impedance
0.45
0.4
0.35
0.3
TDD VTAC 9
Leading Competitor
0.25
0.2
0.15
0.1
0
10
20
30
40
50
60
Motor Frequency at rated load (Hz)
THD VTAC 9 vs. Leading Competitor
120.00%
Current Distortion (THD)
– 5HP and larger @ 208V ac
– 7.5HP and larger @ 480V ac
TDD - VTAC 9 vs. Leading Competitor
100.00%
80.00%
VTAC 9
60.00%
Leading Competitor
40.00%
20.00%
0.00%
0
10
20
30
40
50
Motor Frequency at rated load (Hz)
60
70
Operator Keypad
•
•
•
•
•
•
5 Line LCD Keypad
Removable
Icon Based Programming
Multi-Language
Quick Start Feature
Password Protectable
Fault Pop Up
FF->
Stopped
Stopped
Ready
A
Auto
0.00 Hz.
- Fault - F05
Overvoltage
Main Menu:
Time Since Fault
Diagnostics
1:10:07
Parameter
Device Select
Parameter Edit
FF->
Stopped
Stopped
0.00 Hz.
Main Menu:
Diagnostics
Parameter
Device Select
Ready
A
Auto
Operator Keypad
Direction Indication
Password Status
Operating Status
Menu, Programming
Screen
Auto / Hand Mode
Status
Alarm Annunciation
Function Key
Operation
Operator Keypad
Enter Key
Configurable
Function Keys
Escape / Program
Speed Control and
Vertical Scroll Keys
Enable Hand
Reference Control
Horizontal Scroll
Keys
Release Hand
Reference Control
Stop Key and Fault
Reset
Start Operation
Keypad Icons
Icons provide users a intuitive interface as well as a logical
Main to
Menu
Icons
method of grouping access
drive
functions and operations
CSS
QS
Start-Up
1. Quickstart
2. Input Voltage
3. Motor Data
4. Motor Tests
5. Speed Limits
6. Ref Setup
7. Configure I/O
8. Done
Parameters
Control Source
Select
P Numbers
Logic Control
Ref Control
Diagnostics
Faults
Alarms
Reg Version
OIM Version
Status Info
Display
Language
Monitor
F Keys
Drive ID
Display Timeout
Memory
Device Select
Password
Reset Defaults
Load from Drive
Load to Drive
Active User Set
Start Up Icon provides access to Quick Start Utility that allows
for fast, easy set-up involving seven parameter groups.
Display Icon allows operators to configure the OIM for
language, monitoring, function keys and other considerations.
Parameter Icon provides quick access to drive and peripheral
component parameters.
Memory Icon allows operators to load and save different
parameters sets into the OIM and, subsequently into the drive
or to restore factory-set defaults.
Device Select Icon allows operators to identify and select the
drive or peripheral device from which to obtain data.
Password Icon provides protection against modifications of all
writable parameters by a unauthorized user and selects
parameter access levels.
Control Source Icon allows control and reference selection.
Diagnostic Icon provides information on faults and alarms.
Programming – File, Group, Element
Monitor
************
Metering
Drive Data
Motor Control
****************
Motor Data
Torq Attributes
Volts per Hertz
Speed Command
*********************
Spd Mode & Limits
Speed References
Discrete Speeds
Speed trim
Slip Comp
Process PI
Dynamic Control
*********************
Ramp Rates
Load Limits
Stop/Brake Modes
Restart Modes
Power Loss
Utility
*****************
Reverse Config
HIM Config
MOP Config
Drive Memory
Diagnostics
Faults
Alarms
Communication
*******************
Comm Control
Masks & Owners
Data Links
Inputs & Outputs
*****************
Analog Inputs
Analog Outputs
Digital Inputs
Digital Outputs
Pulse I/O
HVAC Features
• Programmable Acceleration Time with S-Curve
– Less mechanical stress on machinery and motors
• Skip Frequencies
– 3 “Critical Avoidance” operating points
– No continuous operation at these points
• Restart Modes
– Line Loss – determines action after power is restored
– Fault Conditions – Reset/Run allows certain faults to be automatically reset
– Long Term Power Loss – Run on power-up
• Sleep-Wake Mode
– Drive starts when analog signal greater than user-specified level
• PI Loop
– Uses process feedback to compare against setpoint
– Adjusts output Hz
HVAC Features
• Flying Start
– Reconnect to a spinning motor
• Shear Pin
– Current limit adjustment for load and mechanical protection
• Purge Input
– Overrides stop signal across network
• Intelligent Thermal Management
– Carrier frequency reduction on overtemperature
• Electronic Motor Overload
– Based on programmed motor FLA
– Class 10 protection
Troubleshooting
• Status LED
– Flashing Green
– Solid Green
= Ready
= Running
– Flashing Yellow
– Solid Yellow
= Start Inhibits
= Alarm Condition Exists
– Flashing Red
– Solid Red
= Recoverable Fault
= Non Recoverable Fault
• Power LED
• Viewable through the cover
Troubleshooting
• Alarms
– User-Configurable: Alert operator of condition if left
untreated, may lead to fault condition
– Non-Configurable: Alert operator of condition caused
by improper programming
• Faults
– Auto-Reset/Run: Auto Restart can be used to attempt
to clear fault
– Non-Resettable: Normally requires drive or motor
repair
– User-Configurable: Enabled or disabled to annunciate
or ignore a fault
F->
Faulted Aut
o
0.00Hz.
-- Fault-F06
Motor
Stalled
Main
Menu:
Time since fault
Diagnostics
1:06:03
Parameter
Device Select
Drive Monitoring and Configuration Software
• V*S Utilities Software
• Windows Explorer look and feel
– Left side tree view
– Right side parameter list
– HTML help
• Parameter Upload / Download
– Configure parameter settings
– Monitor I/O activity
– Compare Files
• Monitor multiple drives when they’re on a communication network
• Supported PC Operating Systems
– Windows 95/98/2000/NT
3 Contactor Full Feature Bypass with
Disconnect
• Door interlock fused disconnect with Class J fuses
– Some competitors offer disconnect switch which requires
upstream short-circuit branch protection
• 100,000 AIC rating for direct connection to high capacity
power distribution lines
– Some competitors offer circuit breaker which has AIC rating of 1420KA
• 3 contactor bypass with Drive/DriveTest/Bypass modes
– Allows troubleshooting/programming of drive while in bypass
– Some competitors offer 2 contactor bypass which does not allow
Drive to be electrically isolated should service be required
• Bypass Control and Status Display provides quick visual
indication of drive/bypass status through LED’s and
schematic diagram
• Class 20 motor overload protection in bypass circuit
3 Contactor Full Feature Bypass with
Disconnect
• Single customer terminal block for all field wiring
• Dedicated Purge Input for connection to fire and
life safety system
• Switch for Hand/Off/Auto
– Hand = Keypad
– Off = Off
– Auto = Communication port or terminal block
• Remote activation of bypass
3 Contactor Full Feature Bypass with
Disconnect
1 Bypass Control and Status Display
2 Bypass Control and Status Display Board
1
3 Drive Main Input Contactor
3
4 Drive Motor Output Contactor
5 Drive Bypass Contactor
2
6 Bypass Motor Overload Relay
4
5
6
7 115V AC Control Transformer
7
8 Field Control Wiring Terminal Block
9 Door Interlocked Main Input Disconnect
8
10 Main Input Disconnect Handle
10
9
Bypass Control and Status Display
• Hand/Off/Auto Selector Switch
• Drive/Drive Test/Bypass Selector Switch
• Status LEDs
–
–
–
–
–
–
Ready
Interlock Open
Drive Output Enable
Purge
Bypass Trip
Bypass Run
Bypass Components
• Bypass Designs Utilize Rockwell Automation
Industrial Components
• Disconnect Switch (Bulletin 194R)
– Meets OSHA Lockout/Tagout
– 100KA Fault Withstand Rating
• Contactors (Bulletin 100C)
– Finger Safe
– 3 Million manufactured per year
– North American Market Leader for last 15 years (39% of
market share)
• Overload Relay (Bulletin 193)
– Visible Trip Indication
– Class 20 Overload Curve
– Manual Reset with Test Button