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IMPORTANT:
all system and module documentation can be accessed via the micro-USB port on the front
panel of the energy manager.
5.2.2 Alarms and Status Indicators
Status LEDs:
•
Red LED
◦
Orange LED
◦
Green LED
◦
N
: The LED mapping can be user modified.
OTE
The energy manager is fitted with an audible buzzer which can be configured to alert to any alarm
•
depending on the alarm mapping.
N
: To disable the buzzer when active, tap the screen.
OTE
Micro-USB Connector: can independently power the EM4x and provides access to the Web UI
•
5.2.3 Energy Manager Touchscreen
Renewables
Active Alarm*
*N
: when there are multiple alarms raised the Active Alarm display cycles through the list. The complete
OTE
list can be viewed by tapping Alarms.
Tap the touchscreen to navigate through the menus.
N
: the EM4x-01 has the option to PIN lock function change through the front screen interface. See the
OTE
EM4x manual for details.
5.2.4 EM4x Features
The EM4x microcontroller-based DC system energy manager provides the control and monitoring functions
for all NewMar Energy's power systems. With an appropriate communications connection third party lithium
battery can also be managed.
The EM4x monitors all power system conditions including DC voltage, rectifier current, battery current, battery
temperature, distribution failure and battery pack status. It has an in-built web-based configurator allowing
setup of system parameters, monitoring, updating and download of logs using a web browser as well as a
front panel interface through which key parameters are also configurable. Visual notification of alarm
conditions is given by LEDs and a display mounted on the front of the EM4x, with remote notification being
enabled by relay contacts, RS232 or TCP/IP (using SNMP).
The EM4x utilizes a USB communications port which allows for local monitoring of system operations as well
as pre-commission and power down configuration of the Web UI.
The EM4x also incorporates the following features:
Support for NewMar's battery modules with optimized battery backup functions
•
Support for third-party external batteries, both lead-acid and lithium based
•
Support for AC-DC rectifiers (24V and 48V Outputs)
•
Support for DC-DC converters (12V, 24V and 48V Outputs)
•
NewMar Power System Manual
Model: COMMANDER II AND COMMANDER II+
Urgent alarm state.
Non-Urgent alarm
DC power is connected to the unit; Energy Manager is functioning
Bus Voltage
Rectifiers
Alarms
Information
Figure 3: Energy Manager Touchscreen
Load
State of Charge (SoC)
Estimated Time Remaining (ETR)
Batteries
Settings
M-CMDRII 063022
Page 9 of 43
Version 1.0
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