intelligent controller

Product Information

The ACX Advanced is a pluggable intelligent controller module providing monitoring and control for Aspiro and Guardian DC Power Systems including full battery monitoring. The ACX Advanced intelligent controller module monitors all system parameters including: DC voltage, rectifier current, rectifier temperature, system capacity, battery parameters, and circuit breaker status.

Alarm and warning notifications are indicated by front panel LEDs, and through potential free alarm contacts that allow remote signaling. External monitoring of alarms and the system is accomplished through a USB or RS232 port using PC-based PowCom™ software. The ACX Advanced has an Ethernet port allowing control over a TCP/IP network and web based support. Alarms can be mapped via SNMP traps to customer OSS (Operation Support System) platforms such as Castle Rock Computing SNMPc Network Manager™.

To meet individual site requirements, the ACX Advanced intelligent controller module contains a Programmable Logic Units that can be used to monitor and control specified requirements. This allows individual alarm routing and logic operations to be set as actions, alarms to be triggered and outputs to be activated, based on internal or external signal monitoring, comparing and processing.

The ACX Advanced controller supports a rectifier 4×64 multiplexer board which adds support for an additional 192 rectifiers by multiplexing four RS485 channels into the single channel provided by the controller. When the rectifier multiplexer is installed with the controller’s internal menu structure is automatically modified so that it displays the 4 channels one of which can be selected to view data about the associated rectifiers. Similarly, when the controller is interrogated using the PowCom™ remote access software channel selection is automatically enabled in the software.


Features and Options
  • User-selectable alarm parameters
  • USB or RS232* Interface and Form “C” dry alarm contacts
  • Programmable alarm routing, logic unit and analog inputs
  • 100 Mbps Ethernet interface + web server support + SNMPv3
  • 1000-event alarm log
  • Audible Alarm
  • Remote configuration upgrade
  • Micro SD card data logging
  • Multiple Language Support
Voltage Range 18 - 60VDC
Current < 200mA
Display 3 x 16 character LCD
Language Support English, German, Spanish, Russian, Chinese
Internal Communication RS485 Data Bus (64 modules max.), microSD card (up to 4GB)
External Communication USB or RS232* interface for remote control via modem or directly from a PC with PowCom™ software. Ethernet port allowing monitoring and control over a TCP/IP network. Web browser support + SNMPv1,v2,v3.
Indications Green LED - Power ON
Yellow LED - System warning
Red LED - System alarm
Signal Inputs Battery current reading (via shunt)
Output voltage reading
Analog inputs for battery symmetry
reading or general use
Battery temperature sensor
Load fuse failure
Battery fuse failure
2 x Digital inputs
Signal Outputs LVD / PLD disconnect (max 4*)
LVD / PLD reconnect
2 x Digital outputs
Software Site upgradeable by Flash memory
Alarm Contacts 4 (optional 10*) potential free change-over (Form-C) alarm contacts
Alarms Low/High Voltage
Batteries on Discharge
Overvoltage Shutdown
High Load (Rectifier Capacity)
Battery Test Failure
Battery Symmetry
Mains Failure
Urgent Module
Battery Fuse Failure
Load Breaker Failure
Battery/Load Disconnect
High/Low Battery Temperature
Temperature Probe Failure
High/Low AC Voltage**
16 x Additional User Definable
Energy Saving Mode Controller turns off the redundant rectifiers automatically depending on the load
Case Dimensions, inches (mm) 3.4 (85) W x 1.6 (40) H x 8.9 (225) D
Weight 0.44lb (0.2kg)
Operating Temp. -40 to +70°C
Storage Temp. -40 to +85°C
EMC EN 61000-6-2, EN 61000-6-3, EN 300 386-2
Safety CAN/CSA C22.2 No 62368-1:2014, UL 62368-1:2014,
EN 62368-1:2014/A11:2017
Environment Storage - ETS 300 019-2-1
Transport - ETS 300 019-2-2
Operation - ETS 300 019-2-3
* Depending on system configuration
** Depending on rectifier used
Supports up to 64 rectifiers as standard or 256 with 4 x 64 multiplexer board
Battery tests and log
Battery voltage and symmetry monitoring
Remaining battery capacity measurement
Low voltage disconnect
Temperature compensation with programmable compensation factor
Monthly data logging
Site log tools

Intelligent Recharge Battery type specific algorithm controls recharge time, voltage and battery current limit
Equalisation Charging Intelligent boost charging calculated from discharge cycles maximizes battery life while minimizing generator runtime
Battery Disconnection Allows voltage controlled disconnection of batteries
Enhanced Battery Monitoring Statistical logging of essential battery parameters including number of cycles, DoD, discharge hours, temperature, temperature hours, current and symmetry voltage
Site Logs System tools developed to assist site management.
Daily peak load and statistic logs available
Symmetry Measurement Optional tool that measures batteries for early detection of thermal runaway
Temperature Compensation Charging Allows continuous adjustment of output voltage according to battery temperature
Load Shedding (PLD) Optional feature that allows voltage controlled disconnection of non-essential load