Allen-Bradley SMC-50 Quick Start

Rockwell Automation Publication 150-QS003E-EN-P - April 2017 5
Preface
Perchlorate material – special handling may apply. See www.dtsc.ca.gov/
hazardouswaste/perchlorate.
This perchlorate warning only applies to primary Lithium Manganese Dioxide
(LiMnO
2
) cells or batteries, and products containing these cells or batteries,
sold or distributed in California, USA.
Summary of Changes
This manual includes new information about the SMC-50 controller with
internal bypass option. It also updates and corrects information from previous
revisions.
ATTENTION:
• The controller must be correctly applied and installed. If applied or installed incorrectly, damage to the components or the reduction in product
life may occur. The system may malfunction if the following wiring or application errors occur: undersizing the motor, using an improperly sized
controller, using an incorrect or inadequate AC supply, excessive ambient temperatures, or power quality.
• You must program the Motor Overload parameter to provide proper protection. Overload configuration must be properly coordinated with the
motor.
• This product has been designed and tested as Class A equipment for electromagnetic compatibility (EMC). Use of this product in domestic
environments may cause radio interference, in which case, the installer may need to employ additional mitigation methods.
• Disconnect the controller from the motor before you measure insulation resistance (IR) of the motor windings. Voltages used for insulation
resistance testing can cause silicone-controlled rectifier (SCR) failure. Do not make any measurements on the controller with an insulation
resistance (IR) or Megger tester.
• To protect the Smart Motor Controller (SMC) and/or motor from line voltage surges, protective modules may be placed on the line, load, or both
sides of the SMC controller. Do not place protective modules on the load side of the SMC controller when using an inside-the-delta motor
connection or with pump, linear deceleration, or braking control.
• The controller can be installed on a system with power factor correction capacitors (PFCC). The PFCCs must only be on the line side of the
SMC controller. Installing PFCCs on the load side results in SCR damage and failure.
• The ground fault sensing feature of the SMC-50 controller is intended for monitoring purposes only and not as a ground fault circuit interrupter
for personnel protection as defined in Article 100 of the NEC. The ground fault sensing feature has not been evaluated to UL 1053.
• After a short circuit occurs, you must verify device functionality.
This product contains a sealed lithium battery that may need to be replaced during the life of the product.
At the end of its life, the battery that is contained in this product should be collected separately from any unsorted municipal waste.
The collection and recycling of batteries helps to protect the environment and contributes to the conservation of natural resources as valuable
materials are recovered.
ATTENTION: There is a danger of explosion if the lithium battery or real-time clock module in this product is incorrectly replaced. Do not
replace the battery or real-time clock module unless power has been removed and the area is known to be nonhazardous.
Replace the battery only with an equivalent CR2032 coin-cell battery.
Do not dispose of the lithium battery or real-time clock module in a fire or incinerator. Dispose of used batteries in accordance with local
regulations.
For safety information on the handling of lithium batteries, including handling and disposal of leaking batteries, see Guidelines for Handling
Lithium Batteries, publication AG 5-4
.

Allen-Bradley SMC-50 Specifications

General

Brand	Allen-Bradley
Model	SMC-50
Category	Controller
Language	English