Rockwell Automation 1391 USER MNL/DIGITAL AC SERVO DR - Manual (Page 5)

Chapter 1
Introduction
1-6
General Precautions In addition to the precautions listed throughout this manual, the following
statements which are general to the drive must be read and understood.
ATTENTION: Only personnel familiar with the 1391-DES
Digital Servo Drive and associated machinery should plan or
implement the installation, start-up and subsequent maintenance
of the drive. Failure to comply may result in personal injury
and/or equipment damage.
ATTENTION: An incorrectly applied or installed drive can
result in component damage or a reduction in product life.
Wiring or application errors, such as, undersizing the motor,
incorrect or inadequate AC supply, or excessive ambient
temperatures may result in malfunction of the drive.
ATTENTION: This drive contains ESD (Electrostatic
Discharge) sensitive parts and assemblies. Static control
precautions are required when installing, testing, servicing or
repairing this assembly. Component damage may result if ESD
control procedures are not followed. If you are not familiar with
static control procedures, reference Allen-Bradley publication
8000-4.5.2, Guarding Against Electrostatic Damage or any
other applicable ESD Protection Handbook.
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Certification Notice: In order to maintain UL listing on Allen-Bradley
1391-DES Digital Servo Drives, the user must provide power from a 1391
Isolation Transformer. Use of any other transformer voids the UL listing.
The user is responsible for providing motor overload protection in
accordance with the National Electrical Code (NEC), and any other local
codes that may apply.
Drive Description The 1391-DES Pulse Width Modulated Digital Servo Drive is a digital and
programmable single axis, AC servo drive. It has been packaged to require
a minimum amount of panel space while containing, as standard, a number
of features required by the machine tool and automated equipment
industries.
The 1391-DES allows Allen-Bradley 1326 AC servomotors to be operated
from 33% to 50% over their rated speed. This can help achieve greater
precision, a finer finished product and increased production from existing
machinery.