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IM05805022K
Instruction Booklet
Page
8
Effective: January 2012
ATC-300+ Automatic
Transfer Switch Controller
The LEDs
Unit Status
The green Unit Status LED blinks at a rate of once per second
while in the ATC-300 Controller is in the “Run” Mode. This indi-
cates that the ATC-300+ has completed a self-diagnostic and
system diagnostic cycle. The self-diagnostic cycle checks include
the:
•
Microprocessor operation and
•
Memory operation.
The system diagnostic cycle checks include the:
•
Output relay operation;
•
Control input operation; and
•
Transfer switch operation.
The Unit Status LED blinks at an increased rate while the
ATC-300+ Controller is in the “Program” Mode.
Source 1 Available
The white Source 1 Available LED illuminates if the Source 1
power source meets the criteria to be considered “available”.
That is, when it is within its undervoltage/overvoltage/underfre-
quency/overfrequency/voltage unbalance/phase reversal setpoint
ranges for the nominal voltage and frequency setting.
Source 1 Connected
The green Source 1 Connected LED illuminates when the Source 1
switching device and its associated position indicating auxiliary
contact are closed.
Source 2 Available
The amber Source 2 Available LED illuminates if the Source 2
power source meets the criteria to be considered “available”.
That is, when it is within its undervoltage/overvoltage/underfre-
quency/overfrequency/voltage unbalance/phase reversal setpoint
ranges for the nominal voltage and frequency setting.
Source 2 Connected
The red Source 2 Connected LED illuminates when the Source 2
switching device and its associated position indicating auxiliary
contact are closed.
2.2.2 The Input Function Components
The Pushbuttons and Combinations
Help/Lamp Test Pushbutton
The Help/Lamp Test pushbutton serves two functions. If the
Help/Lamp Test pushbutton is pressed when a message is present
on the LCD Display, a detailed description of the message will
appear. The detailed message description will scroll across the
bottom of the display. The detailed description can be aborted by
pressing Help/Lamp Test key a second time.
If the LCD Display is displaying the Home screen when the Help/
Lamp Test key is pressed, all of the LED’s will momentarily illumi-
nate, then the following information will scroll across the display:
•
Serial number of the ATC-300+ Controller;
•
Hardware revision number (= parts list revision number);
•
Software version and revision number;
•
Feature code – a decodable string listing all optional features
programmed in the ATC-300+ Controller; and
•
Firmware version.
Engine Test Pushbutton
The Engine Test pushbutton allows the user to test the Source 2
(generator) engine. The engine test function can be set with the
ATC-300+ Controller to one of three setpoint modes to allow
flexibility in how the test is run:
0 No Load Engine Test;
1 Load Engine Test; or
2 Disabled.
The factory default is set to 0 - No Load Engine Test.
For complete information on the Engine Test function, see Section
5.7.
Step/Enter Pushbutton
The Step/Enter pushbutton allows the user to scroll through the
information and setpoint displays. By pressing the Step/Enter
pushbutton, the information on the LCD Display will advance
through the voltage(s), frequency, and status condition of Source
1, then Source 2, then the time and date information, then the
history information, then the setpoints. The information on the
LCD Display advances one step through the displayed information
cycle with each depression of the Step/Enter pushbutton.
Increase Pushbutton
The Increase pushbutton allows the user to increase the value of
the setpoints. When ATC-300+ Controller is in the “Program”
Mode (to change setpoint values), each time the Increase push-
button is pressed, the value of the displayed item will increase by
one.
Decrease Pushbutton
The Decrease pushbutton allows the user to decrease the value of
the setpoints. When ATC-300+ Controller is in the “Program”
Mode (to change setpoint values), each time the Decrease push-
button is pressed, the value of the displayed item will decrease by
one.
Alarm Reset Function (In Decrease Pushbuttons)
Pressing the Increase and Decrease pushbuttons simultaneously
will reset the Alarm function. In addition, if both pushbuttons are
pressed simultaneously while viewing any of the historical logged
values in the program mode, the value of the current item dis-
played resets to zero.
Bypass Time Delay Function (Step/Enter + Help/Lamp Test)
Pressing the Step/Enter and Help/Lamp Test pushbuttons simulta-
neously will bypass the TDNE or TDEN functions when they
actively counting. The “Bypass TDNE/TDEN” function does not
have a user accessible, programmable setpoint for enable or dis-
able.
