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IB140012EN

Instructional Booklet

Page

40

Effective: March 2021

Operation and Maintenance Manual,

Automatic Transfer Switch Controller, ATC-900

-Immediately turn on Gen Start for both Sources

Source 2

Available?

Source 1

Available?

-Set transfer switch to Source 1 (No TDN or TDEN if switch
was previously on Source 2)
-Turn off Source 2 Gen Start after fixed 5 minute TDEC.
-Set Source 2 to Idle state

Yes

No

No

-Set transfer switch to Source 2 (No TDN or TDNE if switch
was previously on Source 1)
-Turn off Source 1 Gen Start after fixed 5 minute TDEC.
-Set Source 1 to Idle state.

Yes

Secondary-In

Active?

-Turn off Gen Start for both sources
-Set both sources to Idle state

-Follow normal procedures to transfer between
sources based on source availability, etc.

Wait for next

Secondary-In Active

Secondary-In goes

Active

Yes

No

Secondary Controller with No Preferred Source

* Gen Start of the slower source will be kept on until
it starts, then TDEC set to 5 minutes to turn it back
off.

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Содержание ATC-900

Страница 1: ...escription Page 1 Introduction 2 2 Hardware Description 6 3 Operator Panel and Display Menus 12 4 Operation 15 5 Setpoint Programming and I O Programming Using the Color Display 18 6 Troubleshooting a...

Страница 2: ...e strict liability or otherwise for any special indirect incidental or conse quential damage or loss whatsoever including but not limited to damage or loss of use of equipment plant or power system co...

Страница 3: ...00 4 3 Radiated susceptibility tests IEC 61000 4 4 Fast transient tests IEC 61000 4 5 Surge withstand tests IEC 61000 4 6 Conducted immunity tests IEC 61000 4 11 Voltage dips and interruptions IEC 610...

Страница 4: ...ble I Os are covered in Section 5 The only item that is optional for the transfer switch is the closed transition optional feature The closed transition operation is cov ered in section 1 5 3 The swi...

Страница 5: ...ust be synchronized in frequency phase and voltage before the transfer is initiated In phase transition is a feature that will allow a transfer between two live sources only when the phase difference...

Страница 6: ...liarize the reader with ATC 900 hardware its nomenclature and to list the unit s specifica tions The information presented is divided into the following four parts Operator Panel Rear Access Area Exte...

Страница 7: ...er stand LED type 4 Color Display Window easy to read monitored param eters setpoints and messages 5 Bypass Timer used simultaneously to bypass timers such as TDNE TDEN and TDEC 6 Help Pushbutton prov...

Страница 8: ...n the controller The DCT is used to measure load current when selective load shed is enabled The DCT Module also has a 24 Vdc input for powering the ATC 900 controller If 120 VAC and 24 Vdc is supplie...

Страница 9: ...T 991 Effects of shipping and storage test Thermal cycling test Humidity test UL 1008 Dielectric test FCC Part 15 Conducted radiated emissions Class A CISPR 11 Conducted radiated emissions Class A IEC...

Страница 10: ...igure 5 I O Module s Wiring 2 5 3 Ethernet Module Description The Ethernet Communications Module is an optional accessory that operates as a communicating device in conjunction with a the ATC 900 via...

Страница 11: ...idity non condensing Enclosure Compatibility NEMA 12 standard mounting NEMA 4 4X mounted with gasket between panel and device faceplate NEMA 3R outdoor UV Resistant ATC 900 Faceplate System Voltage Ap...

Страница 12: ...s like the up down left and right Arrows will also continue to scroll if they are pressed and not released 3 3 2 Help Pushbutton When the Help pushbutton is pressed and released with the ATC 900 in an...

Страница 13: ...e Diff iv In Phase Transition No Sync to Alarm or Open v Frequency Diff vi Sync Timer vii Time Delay Neutral TDN viii Load Decay d Screen 4 Setpoints Switch Type Settings 4 of 4 2 View Setpoints Time...

Страница 14: ...Event Details c Hi Speed Captures d Event Data 8 System Info Figure 7b a Style b Transitions c GO Number d Serial Number e Fixed I O f Firmware Versions g Time Date 9 USB Menu a Save Setpoints b Load...

Страница 15: ...ure 2 for a graphical representation and position of all input connections There are two types of I Os programmable and fixed Most I O are programmable by the user at any time There are a few that are...

Страница 16: ...t input is de activated Bypass Timers Input This momentary contact will bypass the timer for TDEN TDNE TDN TDES and TDEC By pushing the Help and Enter buttons on the front of the controller Bypass Tim...

Страница 17: ...lay Neutral TDN Time Delay Normal Disconnect TDND Time Delay Normal Reconnect TDNR Time Delay Emergency Disconnect TDED Time Delay Emergency Reconnect TDER Pre transfer Delay Signal TD PRE TRAN Post t...

Страница 18: ...the communications port Users can reprogram setpoints as well as other parameters Up to four optional I O modules each having four in and four out programmable I Os can be used with the ATC 900 That...

Страница 19: ...ements of the Load Note that the DCT module is required to display Load current Watts VAR VA and power factor Other wise only voltage measurements will be shown See Section 2 for the DCT Module specif...

Страница 20: ...mmable I O The System Setpoints screen contains normal voltage frequency preferred source CT Ratio communications closed or open and several more After the initial setting of these system setpoints th...

Страница 21: ...tenance Manual Automatic Transfer Switch Controller ATC 900 Figure 11 Setting Setpoints All setpoints are set in this way The display gives the user a quick look at not just one setpoint but the whole...

Страница 22: ...engine 2 start 259 Minutes 0 03 4A Time delay engine cool off 0 9999 seconds 5 00 7A Time delay engine fail timer 0 60 seconds 0 06 Unbalance phase loss time delay 0 30 seconds 0 20 Any TDES value abo...

Страница 23: ...Selective Load Shed General Alarm Indication Contact Monitor Mode ATS in Test Engine Test Aborted Cooldown in Process Engine Start Contact Status Gen 1 2 LOAD SHED Emergency Inhibit On ATS on Bypass L...

Страница 24: ...ample When the I O is Fixed the display will show the particular I O in the designated slot The display will show a fixed I O as black instead of blue Table 8 shows the features and the I O of the con...

Страница 25: ...ne Test 6B Engine Test Pushbutton on Panel S S S S S S S S S 6C Remote Engine Test INPUT P P P P P P P P P I 7B Time Delay Engine Fail TDEF Adjustable 0 60 Sec S S S S S S S S S Pushbutton Bypass 8E B...

Страница 26: ...Transfer Signal Contacts Form C P P P P P P P P P O 36 Load Shed S2 Inhibit INPUT P P P P P P P P P I 36A Load Shed S2 Inhibit w Keyed Switch INPUT OF OF OF OF OF OF OF OF OF I 37 Go to Isolated Posit...

Страница 27: ...81F Engine Start Contact Status Gen 1 Gen 2 OUTPUT P P P P P P P P P O 81G LOAD SHED S2 Inhibit On OUTPUT P P P P P P P P P O 81GL LOAD SHED S2 Inhibit On w white indicating light OF OF OF OF OF OF O...

Страница 28: ...Stuck waiting for Neutral position ATC 900 is malfunctioning Verify that control power is connected at J7 and that it is within specifications Mechanical problem No inputfrom limit switch Replace the...

Страница 29: ...not locked in Statis lamp is on Monitor Mode Unit is in manual mode Close the door s assure contactor s is locked in turn top user switch to auto matic Unit displays Lockout No contact closure at Loc...

Страница 30: ...ine voltage and frequency available at ter minals N1 N2 and N3 Record the readings If YES Proceed to Step 4 If NO Check Preferred source Step 4 Is the transformer voltage selector plug in the correct...

Страница 31: ...o be present on some of the terminal blocks Step 3 Before disconnecting any wires from the unit make sure they are individually identified to ensure reconnection can be correctly performed Taking a pi...

Страница 32: ...removed to when the switch transferred includ ing engine start and source available Historical Data Figure 15 Historical Data Screen The Historical Data display indicates historical and cumulative co...

Страница 33: ...splay Insufficient Memory To load controller setpoints from a setpoint file on your USB flash drive use the arrow keys to navigate to the Load Setpoints icon and press Enter The Load Setpoints feature...

Страница 34: ...defined period of time TDER with a range of 0 60 seconds A flowchart example is shown in Appendix C Feature System Nominal Frequency NOMF There are only two choices for system nominal frequency of the...

Страница 35: ...pushbutton remote switch to any of the Inputs to do the same function This feature is usually used in testing when it is not desirable to wait for completion of the tim ing sequence Feature 9B Mainten...

Страница 36: ...bal ance must drop to a value that is below the pickup setting to stop the timer or to become available after the timer expires This can be disabled in the setpoint settings under menu 3 in the Setpoi...

Страница 37: ...Source See the Con trol Inputs section for more information The ATC 900 when used in conjunction with the optional DCT metering module has the ability to shed and pick up loads based on available gene...

Страница 38: ...er failure of S2 The Generator Fail Alarm remains active until either manually cleared or until Second ary In is removed and re asserted to start a new session Once a generator fails the other generat...

Страница 39: ...Source Gen Start Set Emergency Source to Idle state Yes No No Set transfer switch to Emergency Source No TDN or TDNE if switch was previously on Normal Source No Change to Preferred Source Gen Start o...

Страница 40: ...C Set Source 2 to Idle state Yes No No Set transfer switch to Source 2 No TDN or TDNE if switch was previously on Source 1 Turn off Source 1 Gen Start after fixed 5 minute TDEC Set Source 1 to Idle st...

Страница 41: ...se of Phase Angle 13 Source 1 Mech Failed to Open The Source 1 Mechanism for a breaker or contactor did not open 14 Source 1 Mech Failed to Close The Source 1 Mechanism for a breaker or contactor did...

Страница 42: ...1 is not available to switch to neutral 3 Time Delay Normal to Emergency Countdown timer before normal is opened for transfer to emergency source 4 Time Delay Normal Reconnect Countdown timer for whe...

Страница 43: ...e manual retransfer feature Selection of this option automatically adds option 29J 36 I Load Shed Emergency Inhibit Enables load shed S2 Inhibit See 36A 36A I Load Shed Emergency Inhibit w Keyed Switc...

Страница 44: ...rovides remote indication that the ATS is currently running a test The test could be initiated by the device panel engine test pushbutton or automatically using the programmed engine excersier 81D O E...

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Страница 48: ...Normal TDND 0 Disconnected from both TDNR Counting Down Normal Available Set TDNR Emergency Available Set TDNE Emergency Unavailable Clear TDNE Normal Available Clear TDND Normal Unavailable Set TDND...

Страница 49: ...ailable fail safe transfer TDED Time Delay Emergency Disconnect 0 10 sec TDEN Time Delay Emergency to Normal 0 9999 sec TDER Time delay Emergency Reconnect 0 60 sec Disconnected from both No Timers Co...

Страница 50: ...ADE REGARDING 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...

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