Allen-Bradley ControlLogix Reference Manual

CIP Axis Attributes
Chapter 4
Rockwell Automation Publication MOTION-RM003I-EN-P - February 2018 393
Motor Polarity
Usage Access Data Type Default Min Max Semantics of Values
Optional Set/SSV* USINT 0
DB
- - Enumeration
0 = Normal Polarity
1 = Inverted Polarity
2...255 = Reserved
* Indicates the attribute cannot be set while the drive power structure is enabled (Power Structure Enable bit in CIP Axis Status
is true).
The Motor Polarity attribute is an enumerated value used to establish the
direction of motor motion when the windings are phased according to factory
specification. Normal polarity is defined as the direction of motor travel when the
ABC motor winding leads are hooked up according to the drives published
specifications. Inverted polarity effectively switches the ABC phasing to ACB so
that the motor moves in the opposite direction in response to a positive drive
output.
You can use the Motor Polarity attribute to make the direction of travel agree with
the user's definition of positive travel. It can be used in conjunction with the
Feedback Polarity bit to provide negative feedback, when closed loop control is
required. When commutating a PM motor, it is imperative that the commutation
phase sequencing match the motor phase sequencing to properly control the
motor.
Motor Rated Voltage
Usage Access Data Type Default Min Max Semantics of Values
Required Set/GSV REAL 0
DB
0
Volts (RMS)
The Motor Rated Voltage attribute is a floating point value that specifies the
nameplate AC voltage rating of the motor. This represents the phase-to-phase
voltage applied to the motor to reach rated speed at full load.
Motor Rated Continuous Current
Usage Access Data Type Default Min Max Semantics of Values
Required Set/GSV REAL 0
DB
0
Amps (RMS)
The Motor Rated Continuous Current attribute is a floating point value that
specifies the nameplate AC continuous current rating of the motor. This
represents the current applied to the motor under full load conditions at rated
speed and voltage. Any positive number. This is a database number and should not
be changed.

Allen-Bradley ControlLogix Specifications

General

Communication	EtherNet/IP, ControlNet, DeviceNet, DH+
I/O Capacity	Up to 128, 000 I/O points (varies by configuration)
Redundancy	Supported (with specific modules)
Programming Software	Rockwell Automation Studio 5000 Logix Designer
Operating Temperature	0°C to 60°C (32°F to 140°F)
Programming Languages	Ladder Logic, Function Block Diagram, Structured Text, Sequential Function Chart
Modularity	Yes
Certifications	UL, CE
Processor Type	Multiple options available, including standard, safety, and extreme environment processors
Power Supply	Multiple options available, including standard and redundant power supplies with various voltage ranges (e.g., 24V DC, 120/240V AC)