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I.L.15.01.T.K
.
Effective June 2000
6. Description of Operation
The primary functions of the ATS-MP1
controller is to accurately monitor two power
sources and provide the necessary
intelligence to operate a transfer switch in an
appropriate and timely manner. The ATS-
MP1 uses proven microprocessor-based
technology that provides a high reliability
and accuracy for all voltage sensing and
timing functions. The input function consists
of keypad type pushbutton inputs (4 in total).
In addition, effectively a fifth user input
exists via a rear located PC type serial port
connection to be used in factory and field
programming of options and setpoints.
Outputs functions consist of LED outputs (4
total) and a two line 16-character
alphanumeric LCD display output.
6.1 Input
Pushbuttons
There are four front panel membrane type
pushbuttons. Pushbuttons accomplish their
function when pressed and released.
Menu Select
The user can scroll through the available
display information. Pushing the Menu
Select key will scroll through the voltage and
frequency of each source. When in the
setpoints menu, pushing the Menu Select
key will scroll the user through each of the
setpoint options in sequence.
Increase
(Increments specific variable
range)
When the user initiates program mode, each
press of the Increase key will increase the
displayed value by one. The Increase
pushbutton will continue to scroll if it is
pressed and not released.
Decrease
(Decrements specific variable
range)
When the user initiates program mode, each
press of the Decrease key will decrease the
displayed value by one. The Decrease
pushbutton will continue to scroll if it is
pressed and not released.
Save/Exit
When in program mode and the user has
selected the desired setpoints for nominal
operation, pressing the save button will store
all of the settings.
The following are three modes of operation
that are easily accessed via the front panel
keys:
6.2 Program
Mode
This mode of operation is used only to
change setpoint values of existing operating
parameters (standard and programmed
options).
Program mode is achieved by depressing
the Menu Select key and Save (Exit) key
simultaneously for five-second duration.
The LCD will then display the phrase “Enter
Password.”
6.2.1 Password
To enter the program mode, the ATS-MP1
requires a password to prevent unauthorized
persons from modifying setpoint values.
The password is factory set to a combination
of 4 depressions of the Menu Select, up,
and down arrow keys in sequence. The
password set at the factory is contained on a
sticker mounted on the rear of the controller.
Once the correct password is entered, the
password may be changed by the user at
the prompt “Change Password?” It is
advisable that if changed, the password be
set to either a combination that is easily
remembered, and also written in the
appropriate space on the sticker. The
enclosure door can be padlocked to prevent
unauthorized persons from gaining
knowledge of the password.
6.2.2 Setpoints
Menu
When in the setpoints menu, by depressing
the Menu Select key, the user can scroll
through the operating parameters at any
time adjusting any setpoint values using the
ENTER PASSWORD
Factory Password:
Decrease, Increase, Menu, Decrease
