Allen-Bradley 1391B Series, Instruction Manual

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Introduction
Chapter 1
1-2
General Precautions In addition to the precautions listed throughout this manual, the following
statements which are general to the controller must be read and understood.
ATTENTION: Only personnel familiar with the 1391B-ES
Servo Controller and associated machinery should plan or
implement the installation, start-up and subsequent maintenance
of the controller. Failure to comply may result in personal injury
and/or equipment damage.
ATTENTION: An incorrectly applied or installed controller
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 controller.
ATTENTION: This controller 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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Important: In order to maintain UL listing on Allen-Bradley 1391B-ES
Servo Controllers, 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.
Controller Description The 1391B-ES Pulse Width Modulated Servo Controller is a dedicated,
single axis, AC servo controller. 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 1391B-ES allows the user to achieve higher operating speeds with
purchased motors or from motors already in use. Depending on the motor,
the 1391B-ES can produce up to 30% more speed without loss of torque.
This can help achieve greater precision, a finer finished product and
increased production from existing machinery.