Powerful Control
ASCO Operator Interface Panel
The heart of ASCO’s Power Control System is a fully integrated Operator Interface Panel with cutting-edge technology

The controller uses a real-time operating system and offers the following advantages:

  • Hot-backup programmable logic controller (PLC) capability.
  • True RMS sensing for power metering with the two, 3-phase 600VAC and two, 3- phase 0-5A inputs.
  • Customized programming including screens using ladder logic from a single software     package.
  • Complete generator control logic with ATS intelligent power transfer, soft loading and unloading, base load and import/export operations.
  • Manual paralleling with graphical synchroscope.
  • Graphical 270-degree gauge-type meters for power instrumentation. Compare two generators together and generator with a total bus on one screen.
  • Electrical one-line diagram representation showing circuit breaker positions on generators, feeders and ties.
  • Programmable 3-phase generator and utility relay protection functions.
  • Data trending up to 16 parameters, with auto/manual triggering of data storage on compact flash.
  • Compact flash slot and card for capturing screen displays and data for remote analysis.
  • Remote monitoring via building management network (Modbus/RTU or Modbus/TCP).
  • Remote diagnostics using industrial-grade analog modem or Ethernet IP connection.
  • Peer-to-Peer networking between units, supporting CAN, DeviceNet, Modbus or Ethernet protocols
Main Menu - Easily navigate through all screen displays from the Main Menu. Log in here to gain access to various levels of information.
To see sample screens for each of the menu selections click on the button on the Main Menu screen. Use your browser's "Back" button to return to the Main Menu screen to make another selection.

To See information regarding system security click on the "Log In" button.


Single Metering - View metering for a single source. Meter sizes are comparable with standard switchboard meters.
Dual Metering - Simultaneously view metering for any two generators. When viewing bus metering on the right side, a synchroscope will show if the source on the left side is in phase with the bus.
Manual Paralleling - Manually adjust the voltage and frequency of the on-coming generator and manually initiate the closing of the paralleling breaker.
System Setup - Provides selections for basic system configuration including system voltage, frequency, number of generators, numbers of ATS's, bus optimization settings and load demand settings.
Generator Setup - Provides selections for interfacing with a generator. Settings include: kW, Voltage, Frequency, PT Ratio, CT Ratio, WYE/Delta, Start Up and Cool Down parameters, and Synchronizer parameters.
System Status - View key parameters of the system including load demand status and bus optimization. Provides for load shed bypass and system test.
ATS Status - If the Automatic Transfer Switches (ATS's) are provided with communications capability, this advanced ATS Status screen provides additional information, such as source availability and ATS position.
ATS Status - View the status of up to eight ATS's per screen, as well as enter the priority, kW and time delay for each ATS. Each ATS can also be placed in Hand, Off, or Automatic mode.
One Line - See up to four generators on a single screen with power flow indication, metering, and status information.
Multi-Trending - Trend up to four parameters per screen at the same time with the option to automatically perform a screen capture to a compact flash card every five minutes.
Single Trending - If you only need to trend one parameter, the single trending screen provides a large area with the option to automatically perform a screen capture to a compact flash card every five minutes.
Event Log - See a history of all alarms as well as a summary of the currently active unacknowledged alarms.
Alarm Status - Visually see the status of all alarms for each generator as well as for the system. Specific engine alarms are available if properly equipped.
Security - The system provides three levels of security to prevent unauthorized use by personnel that are not trained in the safe use of the system. The three levels are Logged Out, Level 1 (User) and Level 2 (Factory Certified Technician). Typical implementation of this security can be seen on the ATS status screen examples shown by clicking on the levels identified above.
Logged Out - There is no user control of the system through the touchscreen while logged out, however the system will fully function automatically and the user can view all status and settings. When logged out, the controls lose their 3D appearance indicating that no user input will be accepted. 
Level 1 Security  (User) - When logged in as Level 1, there is complete control of the system as well as access to most of the settings. The controls have 3D appearance indicating that user input will now be accepted.
Level 2 Security (Factory Certified Technician) - When logged in as Level 2, there is access to the more advanced settings for the technician. An additional control appears to allow each ATS to be displayed as a bypass ATS or a normal ATS. The controls have a 3D appearance indicating that user input will be accepted.

© Copyright 2001-2009 ASCO Power Technologies, LP
Florham Park, NJ 07932
Click to see Alarm StatusClick to see Event LogClick to see Generator One-line Diagram screenClick to see ATS Satus screenClick to see Multiple Parameter TrendingClick to see Single Parameter TrendingClick to see System Satus screenClick to see Generator Setup screenClick to see System Setup screenClick to see Manual Paralleling screenClick to see Dual Metering screenClick to see Single Metering screen