ATC-900 CONTROLLER

ATS ATC Breaker / Contactor ATC-900 CONTROLLER

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Key Specs

Rating Range
120 to 600V, single phase and three phase @ 50/60 Hz
120 to 600V, single phase and three phase @ 50/60 Hz
Transfer Type
Switch application dependent
Switch application dependent
Switch Type
Switch application dependent
Switch application dependent

Overview


The ATC-900 Controller is a programmable microprocessor-based monitoring device for use on Cat transfer switches. Data access and programming operations are performed using the ATC-900's touch sensitive function buttons in conjunction with an easy-to-read illuminated alphanumeric LED display. Both the functional buttons and the display window are part of the device's door mounted front panel. A built in Help button provides user assistance in the form of message displays.

The communication option permits monitoring and control of several transfer switches, locally or remotely from a single point. Depending on the application, the user can customize the ATC-900 to meet the particular application. The ATC-900 is equipped to display historical information either via the front panel or over mod bus communications to a personal computer. Source 1 and Source 2 run time, available time and connect time are available, as well as load energized time, number of transfers, date, time and reason for the last 16 transfers.

Benefits

The ATC-900 is a programmable microprocessorbased monitoring device for use on Cat� transfer switches

It is a compact and self-contained panel-mounted device that is designed to replace traditional relay and solid-state logic panels

Features At A Glance

Displaying 1-6 of 8

Cat

Product Features

  • True rms three-phase voltage sensing on Source 1, Source 2 and load
  • Frequency sensing on Source 1 and Source 2
  • Preferred source selection
  • Programmable set points stored in nonvolatile memory
  • Modbus communication to personal computer either on site or remote
  • Viewable historical data on the most recent transfers (up to 16 events) are viewable at switch. Unlimited history storage (remote) available when used with remote software
  • Load sequencing (optional)
  • Engine start contacts (2 sets)
  • Engine test switch with user-selectable test mode and fail-safe
  • Alarm contact (multiple alarm functions available)
  • Pretransfer signal (optional)
  • Heartbeat monitor (flashing light signifies that the ATC-800 is operating properly)
  • Instrumentation:
    • Voltmeter (accuracy ±1%)
    • Reads line-to-line on Sources 1 and 2 and load
    • Frequency meter (40–80 Hz, accuracy ±0.1 Hz)
    • Source available time (both sources)
    • Source available time (both sources)
Cat

ATC-800 Programming

    Buttons provide easy access to all commonly used ATC-800 functions. When Source 1 is connected and the ATS is operating normally, the automatic indicator light will be flashing and the display window will be blank.
    Using the Display Select button, the operator can step through each of the six display families:
  • Source 1
  • Source 2
  • Load History
  • Time/Date
  • Set Points
Cat

Initial Programming

Factory programming will load all standard features and customer-specified options per the default settings.
Cat

Customer Programing

    Customers may reprogram set points and other parameters to match their application using the Program switch located on the rear of the unit. Once the programming mode has been activated and the Program light is flashing, the user may access Set Point settings by pressing the Display Select button until the Set Points LED is illuminated.
    Values for individual set points may then be altered by pressing the Increase (arrow up) or Decrease (arrow down) buttons. Once a parameter has been reset, the user advances to the next set point by pressing the Step button. While the ATC-800 is in the Program mode, the device continues to operate in accordance with the previously programmed set points and parameters.
    The unit is never offline and preset values do not change until programming has been completed. Once reprogramming is complete, the user may return the Program switch to the Run position. At this point, all new values are stored in the ATC-800 nonvolatile memory and the unit returns to Automatic mode.
Cat

Open Transition / In Phase Monitor

In-phase monitor is a feature that will allow a transfer between two sources only when the phase difference between the two sources is near zero. This is an open transition transfer that prevents in-rush currents from exceeding normal starting currents in the case where motor loads are being transferred.
Cat

Open Transition / Delayed with Load voltage

Load voltage decay transfer is a feature that, after opening the switch for the original source, holds in the neutral position until the voltage on the load is less than 30% of rated voltage. This operation is an open transition that prevents in-rush currents from exceeding normal starting currents in the case where motor loads are being transferred.

Product Specifications for ATC-900 CONTROLLER

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Rating Range 120 to 600V, single phase and three phase @ 50/60 Hz 120 to 600V, single phase and three phase @ 50/60 Hz
Transfer Type Switch application dependent Switch application dependent
Switch Type Switch application dependent Switch application dependent
Input Control Voltage 120Vac (50/60 Hz) (operating range 65 to 160 Vac) 120Vac (50/60 Hz) (operating range 65 to 160 Vac)
Voltage Measurements of Utility Source 1, Source 2 and Load
(VAB, VBC, VCA for Three Phase System) Source 1, Source 2 and Load
(VAB, VBC, VCA for Three Phase System)
Voltage Measurement Range 0 to 700 Vac 0 to 700 Vac
Voltage Measurement Accuracy +/-1% of full scale +/-1% of full scale
Frequency Measurements Of Source 1 and Source 2 Source 1 and Source 2
Frequency Measurement Range 40 Hz to 80 Hz 40 Hz to 80 Hz
Frequency Measurement Accuracy +/- 0.1 Hz +/- 0.1 Hz
Undervoltage Dropout Breaker Style 50 to 97% of Nominal System Voltage
Contactor Style - 78 to 97% Breaker Style 50 to 97% of Nominal System Voltage
Contactor Style - 78 to 97%
Undervoltage Pickup (Dropout +2%) to 99% of Nominal System Voltage (Dropout +2%) to 99% of Nominal System Voltage
Underfrequency Dropout Range 90 to 97% of Nominal System Frequency 90 to 97% of Nominal System Frequency
Underfrequency Pickup Range (Dropout +1 Hz) to 99% of Nominal System Frequency (Dropout +1 Hz) to 99% of Nominal System Frequency
Overfrequency Dropout Range 103 to 110% of Nominal System Frequency 103 to 110% of Nominal System Frequency
Overfrequency Pickup Range 101% to (Dropout +1 Hz) of nominal system frequency 101% to (Dropout +1 Hz) of nominal system frequency
Operating Temperature Range -20 to 70 degree C (-4 to +158 degree F) -20 to 70 degree C (-4 to +158 degree F)
Operating Humidity Up to 90% Relative Humidity (non-condensing) Up to 90% Relative Humidity (non-condensing)
Enclosure Compatibility
  • NEMA 12 (std mounting)
  • NEMA 3R
  • UV Resistant Faceplate
    •
  • NEMA 12 (std mounting)
  • NEMA 3R
  • UV Resistant Faceplate
    •
    System Voltage Application 120 to 600 Vac (50/60 Hz) (single or three phase) 120 to 600 Vac (50/60 Hz) (single or three phase)

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    ATC-900 CONTROLLER