Chapter 1, Introduction, Safety considerations – Rockwell Automation 1608M MegaDySC User Manual, 800 - 2400 A User Manual
Page 5: Ch 1 - introduction, Chapter
 
Rockwell Automation Publication 1608M-UM002A-EN-P - September 2013
5
Chapter
1
Introduction
The Allen-Bradley Bulletin 1608M MegaDySC Dynamic Sag Corrector is 
engineered to provide years of trouble-free voltage sag (dip) protection. The 
patented DySC technology does not use batteries, requires only routine 
maintenance, includes three-stage transient voltage surge suppression, and has 
unparalleled energy efficiency. Most electronic devices found in industry today 
are susceptible to power disturbances. A momentary sag in line voltage can reset 
or damage sensitive production equipment. The MegaDySC provides 
instantaneous dynamic sag correction to help your equipment ride through these 
common events. The MegaDySC connects normal utility power directly to the 
load until a voltage sag occurs. During a sag, the MegaDySC inverter is activated-
adding missing voltage to keep the load voltage within the normal range. When 
utility power returns to normal, the inverter is deactivated and the MegaDySC is 
quickly ready to correct the next sag.
The MegaDySC reports these voltage sag events through its integrated touch 
screen display and provides system status, voltage sag notification and history, 
runtime statistics and system history in a simple and intuitive touch-based user 
interface.
Safety Considerations
The MegaDySC is designed to operate in industrial applications. Follow these 
guidelines to ensure that the safety and installation of the MegaDySC are 
handled with appropriate care.
SHOCK HAZARD: The MegaDySC has high voltage remaining up to 5 minutes 
after disconnection from the AC line. Touching exposed or disconnected 
terminals, cables or parts of the MegaDySC can lead to serious injuries or even 
death. Wait for a minimum of 5 minutes before performing any service or 
testing on the MegaDySC after power is removed. High voltage remains if red 
LED indicators above capacitor banks are lighted. Keep the cabinet doors closed 
and locked to ensure proper cooling airflow and to protect personnel from 
dangerous voltages inside the MegaDySC.
ATTENTION: - To reduce the risk of fire or electric shock, install this MegaDySC 
in a temperature and humidity controlled, indoor environment, free of 
conductive contaminants.
• Avoid installing the MegaDySC directly near heat-emitting equipment such as ovens, heaters, or
furnaces.
• Ambient temperature must not exceed 40°C (104°F).
• Do not operate near water or excessive humidity (95% max).
• When punching or drilling holes for conduit fittings, take care to avoid dropping metallic particles 
inside the enclosure as this can result in electrical damage.
• The system is not intended for outdoor use.
• The operating environment should be maintained within the parameters stated in this manual.
• Only authorized service personnel should perform service on the MegaDySC.
• Ensure all power is disconnected before performing installation or service.