Instructional Booklet
Page
18
Effective: March 2012
Instructions for Installation, Operation and Maintenance of the
Eaton ATC-800 Closed/Open Transition Transfer Switch Controller
For more information visit: www.eaton.com
IB ATS-C103
Output Relay K4
The K4 output is used for control of the close coil of the Source 2
breaker in transfer switches with power breakers. The K4 relay
momentarily energizes until the ATC-800 senses that the Source 2
breaker is closed, then K4 de-energizes. The K4 output is found on
pins 15 and 16 of Connector J5.
4.6 Test Mode
The Test Mode is intended to permit the periodic performance of
tests of the system. To enter the Test Mode, the display window
must be blank.
When the Engine Test Pushbutton is pressed and released,
“START” will be shown in the display window and the Status LED
will be lit. At this point, if the initiation of a test is not desired,
pressing the Increase and Decrease Pushbuttons simultaneously
will clear the display window. In addition, if any of the display
pushbuttons are not touched for 2 1/2 minutes, the Test Mode
and Display Window would be cleared. If a test is desired, the
Engine Test Pushbutton must be pressed a second time before the
2 1/2 minutes have expired. At this time the Status and Test
Mode LEDs are lit red, and one Test Mode cycle is implemented.
The exact test conditions are determined by programmed set-
points. Whether or not to transfer the load during testing, disable
the engine test completely, and the engine test run time are oper-
ator selected parameters. Refer to Section 5 Programming and
specifically Table
2
for test programming details.
A load transfer test cycle includes a full generator start, a transfer,
and a re-transfer. For the test cycle to proceed, the Normal Source
must be available. The test cycle will be aborted if the Emergency
Source does not become available within a set time-out period, or
if a needed source becomes unavailable. In addition, the test will
be aborted if the Test Pushbutton is again pressed and released.
Both LEDs turn off upon the successful completion of a test cycle,
once the time delay engine cool down timer has expired and the
generator is stopped.
If the “Number of Generators” setpoint is programmed to zero, the
Engine Test Pushbutton is not functional. If the setpoint is pro-
grammed to two, the test will be performed on the generator not
connected to the load.
When an engine test is in progress, it may be aborted the follow-
ing ways:
1. By pressing the “Engine Test” pushbuttton.
2. If the Emergency Source does not become available within 90
seconds of the ATC-800 providing the engine start command.
3. If , during the TDNE countdown, the Emergency Source goes
unavailable more than three times. (Each time, TDNE will
restart.)
4. If the Emergency Source is powering the load and it goes
unavailable for more than the TDEF setting.
5. If the Normal source becomes unavailable.
4.7 Programming Mode
ATC-800 is fully programmable from the device’s faceplate once
the Run/Program switch on the rear of the chassis has been
moved to the Program position. Any operator associated with pro-
gramming the ATC-800 will quickly discover that ATC-800 pro-
gramming is just a matter of simple, repetitive steps. Because of
the importance placed, however, on this function and its critical
relationship to the systems proper functioning, Section 5 is dedi-
cated to the Programming Mode. Refer to this section and Table
2
for details.
4.8 Communications
ATC-800 is an IMPACC (Integrated Monitoring Protection and
Control Communications) compatible device. As such, it can be
remotely monitored, controlled and programmed when equipped
with the communications option. The ATC-800 is supplied with a
communications port as standard. This permits it to have the com-
munications option supplied from the factory or retrofitted at a
later date. The communications option is achieved by mounting a
small, addressable communications module, the PONI, to the back
of the ATC-800 (Paragraph 2.4 and Figure
3
).
IMPACC is a noise immune communications system that permits
communications from the ATC-800 to a master computer via a
high frequency carrier signal over a shielded twisted pair of con-
ductors. The shielded twisted pair of conductors can extend up to
7500 feet without the use of repeaters. Communications between
IMPACC compatible devices, such as ATC-800 and the master
computer is made possible by the INCOM (Industrial Communica-
tions) chip, which accounts for the system’s high degree of reli-
ability.
4.8.1 IMPACC Powernet Software
PowerNet software provides the ability to monitor and record
power distribution system data as it is occurring. PowerNet is a
Microsoft Windows compatible application featuring user friendly,
menu-driven screens with easy set-up and operation. Additional
features include:
•
System/device alarm logging and reporting
•
Time/event historical data logging
•
Data trending
•
Information storage/retrieval by device event
•
Hardware diagnostics
•
Dedicated computer not required
•
Security password protection
•
Gateway interface for connectivity to other information net-
works
IMPACC PowerNet also provides the following features unique to
the ATC-800:
•
Duplication of ATC-800 front panel mimic bus showing avail-
able and connected sources.
•
Voltage and frequency measurements of Source 1 and Source
2. Voltage measurements of the Load.
•
Display of all programmed setpoint values. These values may be
changed and either saved to a file or downloaded to the ATC-
800 over IMPACC.
