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Other Features
External communications
Refer to the system controller handbook for information on these communications options.
Communication with DCTools via USB
Communication with DCTools or PowerManagerII via Ethernet
Communication with web browser software via an IP network
Communication with a Network Management System (NMS) using SNMP
Communication with a Building Management System (BMS) using Modbus
Alarm and status messages to GSM Short Messaging Service (SMS)
text capable cell phones
Communication with an alarm management system using
voltage-free relay contacts (on an IOBGP I/O board)
Low Voltage Disconnect Options
Single or dual optional Low Voltage Disconnects (LVD) are available for the Access Power
Solutions (APS6-600 Series). See the diagram on page
battery disconnect (single LVD) or low priority load/battery disconnect (dual LVD).
For information on operation see Low Voltage Disconnect (LVD) in the System Controller
Operation Handbook.
The maximum output current of APS6-600 models with the LVD option is limited. See System
Output.
Battery Mid-point Monitoring Description
Battery Mid-point Monitoring provides a cost-effective method for the early detection of internal
battery faults. The voltages of the two halves of a battery string are measured and the system
controller generates an alarm signal if a voltage imbalance is detected.
A voltage imbalance is an indication that one or more cells has an internal fault. Further
investigation can then isolate the faulty cell(s) and action can be taken to correct the problem and
prevent a total battery failure.
To connect Battery Mid-point Monitoring see details on page 26. If a String Fail alarm is
generated see Troubleshooting on page 48.
To ensure reliable operation Mid-point Monitoring operates only when the battery is in float
charge and after a configurable lockout period since the last battery discharge, Fast Charge,
Equalize or Battery Test.
Copyright © 2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-10A2
3
for location. These are connected as a
July 2018
General Description
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