User Instructions UM581127000
Spec. No. 581127000 (Model 710NPBA) Issue AB, March 22, 2012
Chapter 2. Operating Procedures Page 3
This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy
Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
CHAPTER 2. OPERATING PROCEDURES CONTROLLER, RECTIFIERS, AND OPTIONAL CONVERTERS
For operation instructions on these units, refer to the following documents.
ACU+ Controller User Instructions (UM1M820BNA)
Rectifier User Instructions (UM1R243000)
Converter User Instructions (UM1C24481500)
ESTOP FUNCTION
If an ESTOP switch is wired to the ACU+ IB2 Interface Board, customer-furnished system
ground applied to terminal DI8- activates the ESTOP function. The ESTOP function
shuts down and locks out the rectifiers, opens the LVD’s, and shuts down the converters.
When the ESTOP signal is removed, LVD’s close (if battery present) and converters
restart. To restart the rectifiers; turn AC power to the rectifiers OFF, wait 30 seconds or
more, then turn AC power to the rectifiers ON. Rectifiers can also be restarted via the
Local and Web-interface ACU+ menus using the “rectifier reset” command.
LOCAL CONTROLS AND INDICATORS
Refer to the Controller, Rectifier, and Converter User Instructions for descriptions of the
local controls and indicators located on these units.
Refer to this section for descriptions of the local controls and indicators located on the
circuit cards installed inside the distribution cabinet.
Circuit Card Locations
Refer to Figure 2-1.