NOTICE
AT THIS POINT, AND PRIOR TO MAKING ANY ATTEMPT TO ENER-
GIZE THE ATS EQUIPMENT, THE ENGINE-DRIVEN GENERATOR
SHOULD BE OPERATED. IF NECESSARY, THE VOLTAGE REGULA-
TOR ON THE GENERATOR SHOULD BE ADJUSTED ACCORDING TO
THE MANUFACTURER’S RECOMMENDATIONS. THE ATS EQUIP-
MENT WILL RESPOND ONLY TO THE RATED VOLTAGE AND FRE-
QUENCY PROGRAMMED INTO THE CONTROLLER.
For more information visit: www.eaton.com
IB140024EN
Instruction Booklet
Page
22
Effective: October 2014
ATC-300/900 40-400A (480/600Vac)
3-Postion Contactor Based Transfer Switch
Step 4:
Close any generator engine-start controls opened as a
result of actions taken in Step 1, Section 6.1.2.
Step 5:
Where required, use an accurate voltmeter to check
phase-to-phase and phase-to-neutral voltages present at
the transfer switch Source 1, Source 2, and/or load termi-
nals.
6.1.4 Operational Checks
Step 1:
Check to ensure that Source 1 switching device is in the
CLOSED position. This should have been done in Section
6.1.3, Step 1.
Step 2:
Initiate an automatic transfer operation from the Source 1
to the Source 2 power source by pressing the
<Engine
Test>
pushbutton two times.
Note:
The ATC-300+ Logic Controller provides the capability to set the
Engine Test function to:
0. No Load Engine Test;
1. Load Engine Test; or
2. Disabled.
The factory default is set to 0 - No Load Engine Test:
1. Load Engine Test
a.
After the Time Delay Engine Starting (TDES) has timed out,
the engine should start, run, and build up to normal voltage
and frequency.
b.
The transfer switch will transfer to the Source 2 power
source after the Time Delay Normal to Emergency (TDNE)
times out.
Step 3:
Initiate an automatic transfer operation back to the
Source 1 power source by pressing the
<Engine Test>
pushbutton one time.
1. After the Time Delay Emergency to Normal timer (TDEN)
has timed out, the transfer switch will transfer back to
the Source 1 power source.
2. The Time Delay for Engine Cool-Off (TDEC - Feature 4)
will allow the engine to run unloaded for a preset time
after transfer to the Source 1 power source is com-
pleted.
6.1.5 Alternate Tests
1. Alternate operational tests may be possible depending upon
the options provided with any given ATS. Refer to the sche-
matic diagram provided with the ATS equipment, along with
the specification nameplate, to determine the exact options
provided.
WARNING
DO NOT ATTEMPT TO MANUALLY OPERATE THE ATS WITH THE
SOURCE 1 POWER SOURCE CONNECTED AND AVAILABLE.
DO NOT ATTEMPT TO MANUALLY OPERATE THE ATS WITH THE
SOURCE 2 POWER SOURCE CONNECTED AND AVAILABLE.
6.2 Problem Solving
WARNING
HAZARDOUS VOLTAGES IN AND AROUND ATS EQUIPMENT DUR-
ING THE PROBLEM SOLVING PROCESS CAN CAUSE SEVERE PER-
SONAL INJURY AND/OR DEATH. AVOID CONTACT WITH ANY
VOLTAGE SOURCE WHILE PROBLEM SOLVING.
WARNING
ONLY PROPERLY TRAINED PERSONNEL, FAMILIAR WITH THE ATS
EQUIPMENT AND ITS ASSOCIATED EQUIPMENT, SHOULD BE PER-
MITTED TO PERFORM THE PROBLEM SOLVING FUNCTION. IF AN
INDIVIDUAL IS NOT QUALIFIED TO PERFORM THE PROBLEM SOLV-
ING FUNCTION, THE INDIVIDUAL SHOULD NOT ATTEMPT ANY OF
THESE PROCEDURES.
A basic problem-solving effort is the first step to take prior to call-
ing for assistance. Frequently, the effort will successfully
address most problems encountered. The problem solving proce-
dure is presented in the Troubleshooting Guide (Table 3,
Section 7 of ATC 300 Controller Instruction Booklet). Remem-
ber, only qualified individuals familiar with the ATS equipment
and the system in which it is applied should attempt these prob-
lem solving procedures.
If a problem persists after having completed the problem solving
procedure, contact a Eaton representative for further assistance.
When calling for assistance, the following is the minimum infor-
mation required to properly address the need:
1. Style number of ATS, if applicable;
2. Catalog number of ATS;
3. Actual location of the ATS (type of facility, address, etc.);
4. Company name and name and position of individual repre-
senting company;
5. Basic description of the situation as it exists; and
6. Any results of the problem solving steps taken and/or read-
ings taken.
For ATS assistance, call Eaton Care at:
877-386-2273 option 2, option 4, and then option 3
