Rockwell Automation WebPak 3000 DC Drives Hardware Reference, Installation and Troubleshooting - Manual (Page 11)

Introduction to the WebPak3000 Drive 1- 3
1.4 Drive Description
The drive is a full-wave power converter without back rectifier, complete with a digital current
minor loop and a digital major loop for armature voltage or speed regulation by tachometer or
encoder feedback. The drive provides functions specifically for web-handling applications
.
Figure 1-2 shows a block diagram of the drive.
The drive employs a wireless construction and uses a keypad or dedicated configuration
software (WebPakCS) for drive setup, including parameter adjustments and unit selection,
monitoring and diagnostics. Multiple language capability in English, French, German, Spanish,
Italian and ‘Numeric Code’ is available. Reference, feedback, and metering signals can be
interfaced to the drive. The drive can be controlled locally by the Operator Interface Module
(OIM) Keypad or remotely by using the terminals at the regulator board terminal strip. You can
select one of the following active control sources using the
CONTROL SOURCE SELECT key:
• KEYPAD
• TERMBLK (regulator board terminal strip)
• NETWORK (if an optional network communication board is installed).
• SERIAL (WebPakCS).
The built-in Field Current Regulator (adjustable for 4,10 or 15 A) provides field economy,
as well as preweakening of the field using a fixed reference or field weakening for above base
speed operation. Refer to manual 49’1345 (Publication
FP3FCR-UM003C-EN).
The Input/Output Expansion Board mounts on the WebPak 3000 chassis and gives
additional analog, frequency, and digital I/O capability.
DRIVE CONTROL SIGNALS AND SEQUENCING
OIM SERIAL NETWORK
SPEED
LOOP
CURRENT
MINOR
LOOP
(CML)
FIELD
CONTROL
S6/S6R
POWER
UNIT
FIELD
POWER
SUPPLY
SPEED
REFERENCE
SELECTION
AND
SCALING
OUTER
CONTROL
LOOP
(OCL)
Regulator Board
Terminal Strip
I/O Expansion
Board
Current Feedback
Voltage Feedback
Tachometer Feedback
MOTOR ARMATURE
ANALOG OR PULSE
TACHOMETER
MOTOR FIELD
DIGITAL,
ANALOG, &
FREQUENCY
INPUTS/
OUTPUTS
Figure 1.2 - WebPak 3000 Functional Block Diagram
1.5 Related Publications
Refer to the following publications as necessary for more information.
• D2-3444 WebPak 3000 DC Drive Software Reference Manual
• D2-3445 WebPak 3000 Operator Interface Module (OIM) User Guide
• D2-3446 WebPak 3000 Application Workbook
• D2-3447 WebPakCS Software
These manuals can be ordered in the Automation Bookstore or downloaded via
www.theautomationbookstore.com, than Public – Item search, Go - Item Number: begins with:
e.g. D2-3445 - search.