EC500 Controller Handbook
Copyright © 2019 Eaton Corporation. All Rights Reserved.
Issue A March 2019
Page 70 of 107
Parameter
Description
Default Value
Where to find:
Home>System Config>
DC Config>Batt. Config
>Batt. Energy Meter
Li-Ion Battery
Modules
The number of Li-ION modules to be
supported, if enabled. All modules
should be of the same make & capacity.
Refer section VRLA Battery Charge
Profile on page 23.
8, (1
–
16)
For Li-Ion Batteries, Temperature Compensation will be automatically disabled, as Li-Ion
batteries do not require temperature compensation.
BATTERY MID-POINT CONFIGURATION
Battery Mid-point Monitoring provides a cost effective method for the early detection of internal battery
faults. The voltage of the two halves of the battery strings are measured and the system controller generates
an alarm signal if voltage imbalance is detected.
A voltage imbalance is an indication that one or more cells have 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 ensure reliable operation Mid-point Monitoring operates only when the battery is in float mode and after a
configurable lockout period since the last battery discharge, Fast charge, Equalize or Battery Test.
➢
To enable Battery Mid-point Monitoring
•
Connect the mid-point monitoring sense wires to the batteries. Refer the System Installation
Guide.
There are two mid-point monitoring Analog inputs on DCIO board (for two battery strings).
Up to 10 additional battery strings can be monitored if additional DCIO input/output boards
are connected. Refer to the System Installation Guide for details on how to connect additional
DCIO input/output boards to the EC500.
•
In the LCD Display, go to: Menu>System Config>DC Config>String Monitoring>Monitoring.
Enter the appropriate pin and select the Battery monitoring type.
•
Go to parameter Max String for MPM/QPM and enable the Mid-point monitoring Analog
inputs (one per battery string) as required.
•
In Web page, go to:
Menu>System Config>DC Config>String Monitoring. Press Tab “Edit” and
select the Battery monitoring type. Similarly, select the number of Battery strings.
•
Go to Menu>Settings>Alarm Management. Enable and configure the “Battery String x Fail”
alarm, x defines the number of Battery string.
Battery strings 1-2 will be connected to DCIO Number 1, DCIO Analog Input number 2-5.
Battery strings 3-4 will be connected to DCIO number 2, DCIO Analog Input numbers 2-5. And
so on, as required up to string 10.
