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Remote Annunciator 
Controller (RAC) 
Instruction Sheet for 
ATC-900 Controllers

Revision: 006

IB140010EN

Overview

1.0
 

The 7” RAC is a color touch-screen display with easy-to-use functions that provide a 
powerful interface with up to 8 Automatic Transfer Switches equipped with the ATC-
900 controller.  It supports serial RS-485 Modbus RTU and Modbus TCP/IP natively.  
When using Ethernet to connect to an ATC-900, a serial-to-Ethernet Modbus gateway 
is required such as the PXG-900 or the ELC-CAENET.

The 7” RAC Kit contains the following:

HMIVU07CUNBE (7” Color HMI Display)
IL04801003E (HMI Instruction Leaflet)
IB01602080E (Ethernet Setup Document)
ELC-PS01 or 02 (Optional 24VDC power supply)
IB140010EN (This Instruction Sheet)
66A8395, E, or EM (HMI Wiring Diagram)
66A8448H02 (HMI Interconnect Module – serial connections only)

Summary of Contents for HMIVU07CUNBE

Page 1: ...pports serial RS 485 Modbus RTU and Modbus TCP IP natively When using Ethernet to connect to an ATC 900 a serial to Ethernet Modbus gateway is required such as the PXG 900 or the ELC CAENET The 7 RAC Kit contains the following HMIVU07CUNBE 7 Color HMI Display IL04801003E HMI Instruction Leaflet IB01602080E Ethernet Setup Document ELC PS01 or 02 Optional 24VDC power supply IB140010EN This Instructi...

Page 2: ...he RAC requires 24VDC power with a minimum current of 360 mA See A below There is a terminal block connector on the back of the unit to install wires for the power The software comes preloaded onto the unit according to your switch configuration and should require no user programming The RAC supports Modbus RTU serial RS 485 and Modbus TCP IP Ethernet However since the ATC 900 controller only supp...

Page 3: ... system Drawing 66A8395EM should be referenced for wiring of multiple gateways ATC 900 Setup 3 1 The communication setpoints on each ATC 900 need to be set as follows Baud Rate 9600 1 stop Even Address 01 02 03 04 05 06 07 or 08 each ATC 900 must be unique ELC CAENET Ethernet Gateway PXG 900 Ethernet Gateway ...

Page 4: ...ightness contrast alarm touch volume and others To do this you have two options The first is to simply press the small SYSTEM button on the back of the unit for two seconds The system menu will now be displayed on the screen The menus are self explanatory but if additional help is required consult the manual on the Eaton website called HMiSoft User Manual IL04801003E The second option is to enter ...

Page 5: ...cating controller press anywhere inside the summary window of the desired controller This will take you to the Controller View screen section 4 2 for that particular controller To enable disable controllers press on any disabled station window and enter your password See section 4 4 for more information on the System Setup screen If any controller has an Alarm condition an audible alarm will sound...

Page 6: ...atus indicators change from gray to a yellow or red color when active Below the status indicators are the Source 1 Source 2 and Load detail windows These windows include graphical and numerical represen tations of voltage frequency and phase loss unbalance as well as status indication and a trend screen button Section 4 5 If your controller has a DCT Module add on you will see additional Load mete...

Page 7: ... graph If the difference is higher than the allowable range it will turn from grey to red indicating that it is not okay to do an in phase or closed transition at that time Note that there are different indicators for closed CT and in phase IP transitions for Frequency and Phase Difference To the left of the Source Sync window is the Mimic Bus window This window acts identically to the mimic bus o...

Page 8: ...cel Engine Test button on the RAC Go to Emergency Button To initiate a go to emergency command from the RAC press the Go toEmergency button and enter your password The ATC 900 will initiate a transfer to your non preferred emergency source To go back to your preferred normal source push the Cancel Go to Emergency button If you have Manual Retransfer enabled the Press to Retransfer button will appe...

Page 9: ...9 ...

Page 10: ...s 4 4 S1 Connected S2 Connected ATS Transferred S1 Available S2 Available Load Sequence Active Engine 1 Run Engine 2 Run ATS in Test Transfer in Progress ATS in Bypass Monitor Mode Go to Emergency Emergency Inhibit Go to Neutral ALARMS EVENTS Slave In Waiting for S2 Permit Controller Alarms Controller Events In Lockout Engine Test Aborted Failed to Sync Uncommanded Transfer Closed Trans S1 S2 Fail...

Page 11: ...icable the trend windows also display the Under Over Frequency Voltage and Unbalance limits as set in the ATC 900 These are depicted by the red horizontal lines on each trend window To view trend data on the HMI simply press the Trend button of the voltage source you wish to view Source 1 Source 2 or Load Once on the trend screen you can go back and forth through time by using the scroll bar and a...

Page 12: ...e user can also disable any communication link between the RAC and controller by pressing on the green circle next to the corresponding controller When enabled the display will show a green Enabled button when disabled the display will show a red Disabled button To toggle the communication state simply press the button and the state will toggle HMI Setup Admin Level This button opens a menu that a...

Page 13: ...level applies to operator related actions such as initiating an engine test or go to emergency command and changing controller setpoints enabling disabling controllers naming controllers Admin level allows changing of HMI Setup and Passwords Caution if you change your passwords do not forget them or you will be unable to access these features Controller Setpoints 4 6 Level Password Level 0 Status ...

Page 14: ...ton in the upper right corner Pressing this will take you to the next setpoint page in that category The example above shows the System Setup 1 of 3 Pressing the Next Page button will take you to System Setup 2 of 3 Pressing the Previous Page button will take you back to the previous setpoint screen Some intermediate pages may have a next and previous page button To change a setpoint simply press ...

Page 15: ...ill display a popup letting you know it was an invalid entry To return to the Controller Setup menu at any time press the Return to Controller Setup button in the upper left corner For more information on any setpoint consult the ATC 900 IB ...

Page 16: ...ed to make sure that appropriate procedures are in place for Engine Tests and Remote Transfers Appropriate procedures include but are not limited to switch doors being closed and latched personnel knowledgeable of transfers and other site safety recommended procedures ...

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