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IB140024EN

Instruction Booklet

Page

 

8

Effective:  October 2014

ATC-300/900 40-400A (480/600Vac) 

3-Postion Contactor Based Transfer Switch

Figure 7. Standard Voltage Selection Terminals (Shown 

Connected to the 480 Vac Taps).

3.4 ATC-300+ Logic Panel

The ATC-300+ is a microprocessor-based transfer switch logic 

control package.  The hardware and software of the controller 

contain the intelligence/supervisory circuits that constantly moni-

tor the condition of the power sources.  It provides the intelli-

gence necessary for the operation of the ATS (Figure 8).

Figure 8. ATC-300+ Logic Control Panel.

The ATC-300+ controller has an operating temperature of 

 

-20 to 70°C (-4 to 158°F).

The controller circuit board is protected by an insulating confor-

mal coating.

The specifications, under normal operating conditions, are as fol-

lows:

Tolerance for voltage sensing function: ±1% of full scale

Tolerance for frequency sensing function: ±0.3 Hz of setting

Summary of Contents for Cutler-Hammer ATC-300

Page 1: ...Instruction Booklet Description Page Introduction 2 Receiving Handling and Storage 6 Equipment Description 7 Installation and Wiring 15 Operation 21 Testing and Problem Solving 22 Adjustments 24 Main...

Page 2: ...a guide for authorized and qualified personnel only Please refer to the specific WARNING and CAUTION in Section 1 1 2 before proceeding If further infor mation is required by the purchaser regarding a...

Page 3: ...transfers back and initiates generator shutdown In the event the Source 1 power source fails and the Source 2 power source does not appear the ATS remains connected to the Source 1 power source until...

Page 4: ...er Identification Transfer switch equipment catalog numbers provide a significant amount of relevant information that pertains to a particular piece of equipment The Catalog Number Identification Tabl...

Page 5: ...ad connection from the Source 2 to the Source 1 Source 1 Source 1 is the primary source normal source normal power source or normal Source 2 Source 2 is the secondary source emergency source emer genc...

Page 6: ...for installation Once the top packaging is removed from the shipment the enclosure door can be opened A plastic bag of documents will be found in the enclosure usually attached to the inside of the en...

Page 7: ...orporates a power contactor The main contacts connect and disconnect the load to and from the different power sources The power contactor is mechanically and electrically interlocked to prevent the tw...

Page 8: ...re of the controller contain the intelligence supervisory circuits that constantly moni tor the condition of the power sources It provides the intelli gence necessary for the operation of the ATS Figu...

Page 9: ...e Source 2 voltage and or frequency setpoints All fea ture 5 functions are Failsafe operations 5H Phase Reversal For a 3 phase wye source this feature monitors the phase sequence of the sources If a s...

Page 10: ...is energized when Source 1 is available 14H Source 2 Present Provides two 2 normally open and two 2 normally closed contacts The relay is energized when Source 2 is available 15 Switch Position Indica...

Page 11: ...emote device prior to a re transfer operation It provides one Form C contact NO NC for interface with other equipment typically ele vator controls The contacts close open on a timed basis prior to tra...

Page 12: ...Only 18AE IQ 250 260 Emergency S2 Only 18AL IQ 250 260 Load 18CN IQ 110 115 Normal S1 Only 18CE IQ 110 115 Emergency S2 Only 18CL IQ 110 115 Load 18DN IQ 130 140 150 Normal S1 Only 18DE IQ 130 140 150...

Page 13: ...els These covers function with Eaton s ATC series logic controllers and device panels The covers are designed for NEMA 1 3R 4X and 12 applications 41 Space Heater With Thermostat This feature provides...

Page 14: ...with the originally submitted device Follow up testing is not required by UL 1008 Section 4 Installation and Wiring 4 1 General Eaton ATSs are factory wired and tested Installation requires solidly m...

Page 15: ...lowing steps Step 1 The ATS enclosure door is hinge mounted with remov able hinge pins To simplify the mounting procedure and avoid damaging the door mounted logic panel it is strongly suggested that...

Page 16: ...NING POWER CONDUCTORS AND CONTROL WIRING MAY HAVE VOLT AGE PRESENT THAT CAN CAUSE SEVERE PERSONAL INJURY OR DEATH DEENERGIZE ALL POWER OR CONTROL CIRCUIT CON DUCTORS BEFORE BEGINNING TO PERFORM ANY WI...

Page 17: ...Gen Start Com Gen Start NO Output Relays 32 VDC Source 1 Closed 32 VDC Source 2 Closed 32 VDC Lockout 32 VDC Go To Source 2 32 VDC Monitor Mode Control Inputs 8 0 in 6 5 in 3 4 1 2 7 8 5 6 Output Rela...

Page 18: ...4 7 1 Standard Voltage Selection Panels 208 240 480 600 V 60 Hz 220 380 415 V 50 Hz The Standard voltage selection panel consists of multi tap trans formers contained in a steel case mounted in the e...

Page 19: ...ler instruction booklet for more information on input and output functionality The J numbers of the connectors are shown below Connector Designation J1 Source 1 Sense Lines J2 Source 2 Sense Lines J3...

Page 20: ...2 Disconnect the J7 connector from the ATC 300 controller 3 Locate the manual lever on the left side of the contactor 4 Locate the handle used to manually transfer the switch 5 Attach the handle to th...

Page 21: ...e Section 6 Testing and Problem Solving 6 1 Testing After the ATS equipment is initially installed or during planned outages the installation should be tested to ensure that all equip ment operates pr...

Page 22: ...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 t...

Page 23: ...d off by disconnecting all control plugs b Inspect the structure area for safety hazards or potential maintenance problems Inspect the area especially where switching device is installed for any safet...

Page 24: ...ation please see Renewal Parts Publication RP01603002E Figure 16 Typical ATC 300 Controlled Contactor Based ATS Transformer Pack 400A 2 Pole 3 Pole 4 Pole Cat 68C8229G02 Contactors 400A 400A 480VAC 2...

Page 25: ...ONS SET UP AND TESTING Step 1 Mount the ATS on a flat rigid surface Figure 17 Shim if necessary ATC 300 Electrical ase ase Source 1 Source 2 Available Available Connected Connected Load Unit Status Al...

Page 26: ...AND TRANSFORMER PANEL GROUND CONNECTION ATC 300 OR ATC 900 CONTROLLER For more information visit www eaton com IB140024EN Instruction Booklet Page 26 Effective October 2014 ATC 300 900 40 400A 480 60...

Page 27: ...Source 1 Phase C Phase B Phase A Source 2 Phase C Phase B Phase A Source 2 S1 Line S1 Neut S2 Line Control Power S2 Neut Clk In Out 5V Gnd Programming Port K1 Com K1 NO K2 Com K2 NO Pretransfer Com Pr...

Page 28: ...Based Transfer Switch Figure 20 ATC 300 Logic Utility Supplying Load Step 6 To view the setpoints press the Step Enter pushbut ton and enter the Password Note The factory default Password is 0300 Onc...

Page 29: ...ng the load Is Source 1 Available TDEN timer times out Yes No No Yes Sends pretransfer signal TPRE timer times out If Source 1 is Available Open Source 2 Energize K1 Close Source 1 Energize K1 Source...

Page 30: ...ts should be reviewed and the genera tor checked for proper voltage and frequency output Step 9 Initiate a Load Test from the front panel of the ATC 300 This may be done by setting the engine test set...

Page 31: ...board under the color display is used the color display is not a touch screen Using the left right arrow keys navigate to the desired screen icon and press the Enter key The Change Setpoints screen wi...

Page 32: ...NG THE INFORMATION RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN In no event will Eaton be responsible to the purchaser or user in contract in tort including negligence strict liability or otherwi...

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