IM05805022K
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Instruction Booklet
Effective: January 2012
Page
11
ATC-300+ Automatic
Transfer Switch Controller
Section 3: Status Monitoring and
Setpoints
WHETHER VIEWING OR PROGRAMMING, THE DISPLAY RETURNS TO
THE HOME SCREEN IF NO PUSHBUTTON ACTIVITY IS DETECTED
FOR APPROXIMATELY 2.5 MINUTES.
3.1 Status Display
The Status Display provides messages regarding anything that is
presently changing or happening to the ATS’s status, including
source information, timer countdown, and failure reports. Refer
to Appendix A for a complete list of Status Display messages.
Figure 3. The LCD Display.
3.1.1 Source 1 and Source 2 Displays
The Source 1 and Source 2 displays indicate the present status of
the sources in terms of voltage and frequency. If the source is
available, the condition display will be “SOURCE 1 GOOD” or
“SOURCE 2 GOOD”. If it is unavailable, one of the following pos-
sible conditions will be shown:
SOURCE 1 U-V
SOURCE 2 U-V
The source voltage has dropped below the dropout setting and
not risen above the pickup setting.
SOURCE 1 O-V
SOURCE 2 O-V
The source voltage has risen above the dropout setting and not
dropped below the pickup setting.
SOURCE 1 U-F
SOURCE 2 U-F
The source frequency has dropped below the dropout setting and
not risen above the pickup setting.
SOURCE 1 O-F
SOURCE 2 O-F
The source frequency has risen above the dropout setting and not
dropped below the pickup setting.
SOURCE 1 UNBAL
SOURCE 2 UNBAL
The voltage unbalance has risen above the dropout setting and
not dropped below the pickup setting.
S1 PHASE REVERSE
S2 PHASE REVERSE
The phase sequence does not agree with the setpoint value, indi-
cating that the phase sequence is reversed.
3.1.2 Time/Date Display
The Time/Date Display indicates real time in terms of hours, min-
utes, and seconds; and month, day, and year. It also indicates
individual time and date items for programming purposes. The
day of the week can also be set with 1 = Sunday, 2 = Monday,
etc. The time, date, and day of the week can be set in the
Program Mode.
3.1.3 History Display
The History Display indicates historical and cumulative counter
values as follows:
Engine Run Time
This counter will log the generator run time in hours. Time will
start being logged at the time the GEN START contacts are
closed, and it will stop as soon as they are opened. This counter
will count up to 9999 hours and then turn over to 0000. It can
be reset to zero in the Program Mode.
Source 1 Connected Time
This counter logs the time in hours that Source 1 has been con-
nected to the load. Time will be logged while the SOURCE 1
CLOSED control input is in the “connected” state. This counter
will count up to 9999 hours and then turn over to 0000. It can
be reset to zero in the Program Mode.
Source 2 Connected Time
This counter logs the time in hours that Source 2 has been con-
nected to the load. Time will be logged while the SOURCE 2
CLOSED control input is in the “connected” state. This counter
will count up to 9999 hours and then turn over to 0000. It can
be reset to zero in the Program Mode.
Source 1 Available Time
When Source 1 meets the voltage and frequency setpoint criteria,
this counter logs the time in hours. This counter will count up to
9999 hours and then turn over to 0000. It can be reset to zero in
the Program Mode.
Source 2 Available Time
When Source 2 meets the voltage and frequency setpoint criteria,
this counter logs the time in hours. This counter will count up to
9999 hours and then turn over to 0000. It can be reset to zero in
the Program Mode.
NOTICE
