UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Caterpillar

Shutting Down the Single Module System (SMS)

• Single Module System (SMS) with a Bypass Cabinet

• SMS without a Bypass Cabinet

Pre-Shutdown

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Illustration 1	g00863047

1. Connect a personal computer (PC) to the "RS-232/RS-485" port. The port is located on the bottom back corner of the system's System Input/Output Board. Refer to Illustration 1. The System Input/Output Board is located in the System Cabinet.

   Note: Refer to Systems Operation, Testing and Adjusting, RENR2476, "Component Location (System Cabinet)" for the location of the board.

2. Rotate the switch to the corresponding MMU.

3. Boot the PC.

4. Run the UPS View software by double clicking over the icon on your PC.

5. Click on the "Enter Password" menu option in order to view the "Enter User Name / Password" dialog box.

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Illustration 2	g00697157

6. Enter a valid "User Name" and then enter a valid "Password". Refer to Illustration 7.

   After the password has been entered, the menu options will change. The menu bar will contain a "Calibrate" option.

7. Depress the <Ctrl><X> keys and hold the <Ctrl><X> keys. This is done in order to bring the system to 0 RPM.

8. The system will prompt you to confirm the option. Depress the <Y> key or select "Yes".

   Note: This procedure is only available once during a 24 hour period.

   Note: A minimum of 15 minutes is required in order to lower the speed of the flywheel to 0 RPM.

   Note: A minimum of 15 minutes is required in order to secure the rotor.

SMS with a Bypass Cabinet

1. Perform the "Pre-Shutdown" procedure in the "Shutting Down a Single Module System (SMS)" section before proceeding with this procedure.

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Illustration 3	g01796613
User Interface Panel on the Flywheel Cabinet (1) Keyswitch

2. Turn the keyswitch (1) on the Flywheel Cabinet to the "Bypass" position. Refer to Illustration 5.

3. Remove the key from the keyswitch (1). Secure the key.

4. Verify that the system enters the bypass mode. The "On Bypass" LED on the user interface panel will light when the system enters the bypass mode. Refer to Illustration 5.

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NOTICE
Do not proceed with this procedure if the system does not enter the bypass mode. Equipment damage and load interruption may occur. Contact your local Caterpillar Dealership.

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NOTICE
Make sure that the electrical path to the load of the facility is not affected when you perform the following steps. Do not allow the load of the facility to be dropped.

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Illustration 4	g01797996
Side view of the Bypass Cabinet (10) Bypass Switch (11) Output Switch (12) Input Switch

5. Close the Bypass Switch (10) that is located in the Bypass Cabinet. Refer to Illustration 4.

6. Open the Output Switch (11) that is located in the Bypass Cabinet. Refer to Illustration 4.

7. Open the Input Switch (12) that is located in the Bypass Cabinet. Refer to Illustration 4.

8. Remove facility power from the input bus of the system.

9. Disconnect the electrical path from the output of the system in order to protect the system for electrical backfeed prevention.

10. Allow the capacitor banks to bleed down for approximately 5 minutes in order to dissipate any residual energy that may exist in the following components: the bus, the armature leads and the fuses.

SMS without a Bypass Cabinet

1. Perform the "Pre-Shutdown" procedure in the "Shutting Down a Single Module System (SMS)" section before proceeding with this procedure.

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Illustration 5	g01796613
User Interface Panel on the Flywheel Cabinet (1) Keyswitch

2. Turn the keyswitch (1) on the Flywheel Cabinet to the "Bypass" position. Refer to Illustration 5.

3. Remove the key from the keyswitch (1). Secure the key.

4. Verify that the system enters the bypass mode. The "On Bypass" LED on the user interface panel will light when the system enters the bypass mode. Refer to Illustration 5.

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NOTICE
Do not proceed with this procedure if the system does not enter the bypass mode. Equipment damage and load interruption may occur. Contact your local Caterpillar Dealership.

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NOTICE
Make sure that the electrical path to the load of the facility is not affected when you perform the following steps. Do not allow the load of the facility to be dropped.

5. Remove the electrical input to the system.

6. Disconnect the electrical path from the output of the system in order to protect the system for electrical backfeed prevention.

7. Remove facility power from the input bus of the system.

8. Disconnect the electrical path from the output of the system in order to protect the system for electrical backfeed prevention.

9. Allow the capacitor banks to bleed down for approximately 5 minutes in order to dissipate any residual energy that may exist in the following components: the bus, the armature leads and the fuses.

Shutting Down the Multiple Module System (MMS)

• Single Input without Switches

• Single Input with Three Switches

• Dual Input without Switches

• Dual Input with Two Switches

• Dual Input with Three Switches

Pre-Shutdown

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Illustration 6	g00863047

1. Connect a personal computer (PC) to the "RS-232/RS-485" port on the Parallel Cabinet Interface Board. The port is located on the bottom back corner of the system's Parallel Cabinet Interface Board. Refer to Illustration 6. The Parallel Cabinet Interface Board is located in the System Cabinet.

   Note: Refer to Systems Operation, Testing and Adjusting, RENR2476, "Component Location (System Cabinet)" for the location of the board.

2. Rotate the switch to the corresponding MMU.

3. Boot the PC.

4. Run the UPS View software by double clicking over the icon on your PC.

5. Click on the "Enter Password" menu option in order to view the "Enter User Name / Password" dialog box.

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Illustration 7	g00697157

6. Enter a valid "User Name" and then enter a valid "Password". Refer to Illustration 7.

   After the password has been entered, the menu options will change. The menu bar will contain a "Calibrate" option.

7. Depress the <Ctrl><X> keys and hold the <Ctrl><X> keys. This is done in order to bring the system to 0 RPM.

8. The system will prompt you to confirm the option. Depress the <Y> key or select "Yes".

   Note: This procedure is only available once during a 24 hour period.

   Note: A minimum of 15 minutes is required in order to lower the speed of the flywheel to 0 RPM.

   Note: A minimum of 15 minutes is required in order to secure the rotor.

9. Repeat this procedure for each MMU.

Single Input without Switches

1. Perform the "Pre-Shutdown" procedure in the "Shutting Down a Multiple Module System (MMS)" section before proceeding with this procedure.

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Illustration 8	g01798275
User Interface Panel on the MMU (2) Keyswitch

2. Turn the keyswitch (2) on each MMU to the "Bypass" position. Refer to Illustration 8.

3. Remove the key from the keyswitch (2) on each MMU. Secure the keys.

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Illustration 9	g00948144

4. Hit the "Home" button on the user interface panel of each MMU. Verify that the MMU is in the "Bypassed" mode. Refer to Illustration 9.

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NOTICE
Do not proceed with this procedure if the system does not enter the bypass mode. Equipment damage and load interruption may occur. Contact your local Caterpillar Dealership.

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Illustration 10	g01796613
User Interface Panel on the System Cabinet (1) Keyswitch

5. Turn the keyswitch (1) on the System Cabinet to the "Bypass" position. Refer to Illustration 10.

6. Remove the key from the keyswitch (1) on the System Cabinet. Secure the key.

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NOTICE
Make sure that the electrical path to the load of the facility is not affected when you perform the following steps. Do not allow the load of the facility to be dropped.

7. Disconnect the electrical path from the output of the system in order to protect the system for electrical backfeed prevention.

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Illustration 11	g01779897
System Cabinet The switches go from MMU 1 to MMU 4 in a descending order. (6) Input Isolation Switches (7) Output Isolation Switches

8. Open the Output Isolation Switches (7) that are located in the System Cabinet for each MMU. Refer to Illustration 11.

9. Open the Input Isolation Switches (6) that are located in the System Cabinet for each MMU. Refer to Illustration 11.

10. Disconnect the utility from the input bus of the system.

11. Allow the capacitor banks to bleed down for approximately 5 minutes in order to dissipate any residual energy that may exist in the following components: the bus, the armature leads and the fuses.

Single Input with Three Switches

1. Perform the "Pre-Shutdown" procedure in the "Shutting Down a Multiple Module System (MMS)" section before proceeding with this procedure.

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Illustration 12	g01796613
User Interface Panel on the System Cabinet (1) Keyswitch

2. Turn the keyswitch (1) on the System Cabinet to the "Bypass" position. Refer to Illustration 12.

3. Remove the key from the keyswitch (1) on the System Cabinet. Secure the key.

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Illustration 13	g01798275
User Interface Panel on the MMU (2) Keyswitch

4. Turn the keyswitch (2) on each MMU to the "Bypass" position. Refer to Illustration 13.

5. Remove the key from the keyswitch (2) on each MMU. Secure the keys.

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Illustration 14	g00948144

6. Hit the "Home" button on the user interface panel of each MMU. Verify that the MMU is in the "Bypassed" mode. Refer to Illustration 19.

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NOTICE
Do not proceed with this procedure if the system does not enter the bypass mode. Equipment damage and load interruption may occur. Contact your local Caterpillar Dealership.

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Illustration 15	g01797234
(3) Maintenance Bypass Switch (8) Key

7. Insert the key (8) into the Maintenance Bypass Switch (3) in the Input/Output Cabinet. Refer to Illustration 15.

   Note: Although the keys are similar in appearance, the key (8) for the Maintenance Bypass Switch (3) is different from the key for the user interface panel.

8. Turn the key (8) for the Maintenance Bypass Switch counterclockwise.

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NOTICE
Make sure that the electrical path to the load of the facility is not affected when you perform the following steps. Do not allow the load of the facility to be dropped.

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Illustration 16	g01802293
Input/Output Cabinet (3) Maintenance Bypass Switch (4) Output Isolation Switch (5) Input Isolation Switch

9. Close the Maintenance Bypass Switch (3) that is located in the Input/Output Cabinet. Refer to Illustration 16.

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Illustration 17	g01779897
System Cabinet The switches go from MMU 1 to MMU 4 in a descending order. (6) Input Isolation Switches (7) Output Isolation Switches

10. Open the Output Isolation Switches (7) that are located in the System Cabinet for each MMU. Refer to Illustration 17.

11. Open the Output Isolation Switch (4) that is located in the Input/Output Cabinet. Refer to Illustration 16.

12. Open the Input Isolation Switch (5) that is located in the Input/Output Cabinet. Refer to Illustration 16.

13. Install safety locks by using the tabs for lockout on the front of the switches in the Input/Output Cabinet.

14. Allow the capacitor banks to bleed down for approximately 5 minutes in order to dissipate any residual energy that may exist in the following components: the bus, the armature leads and the fuses.

Dual Input without Switches

1. Perform the "Pre-Shutdown" procedure in the "Shutting Down a Multiple Module System (MMS)" section before proceeding with this procedure.

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Illustration 18	g01798275
User Interface Panel on the MMU (2) Keyswitch

2. Turn the keyswitch (2) on each MMU to the "Bypass" position. Refer to Illustration 18.

3. Remove the key from the keyswitch (2) on each MMU. Secure the keys.

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Illustration 19	g00948144

4. Hit the "Home" button on the user interface panel of each MMU. Verify that the MMU is in the "Bypassed" mode. Refer to Illustration 19.

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NOTICE
Do not proceed with this procedure if the system does not enter the bypass mode. Equipment damage and load interruption may occur. Contact your local Caterpillar Dealership.

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Illustration 20	g01796613
User Interface Panel on the System Cabinet (1) Keyswitch

5. Turn the keyswitch (1) on the System Cabinet to the Bypass position. Refer to Illustration 20.

6. Remove the key from the keyswitch (1). Secure the key.

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NOTICE
Make sure that the electrical path to the load of the facility is not affected when you perform the following steps. Do not allow the load of the facility to be dropped.

7. Close the external maintenance bypass switch.

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Illustration 21	g01779897
System Cabinet The switches go from MMU 1 to MMU 4 in a descending order. (6) Input Isolation Switches (7) Output Isolation Switches

8. Open the Output Isolation Switches (7) that are located in the System Cabinet for each MMU. Refer to Illustration 21.

9. Open the Input Isolation Switches (6) that are located in the System Cabinet for each MMU. Refer to Illustration 21.

10. Disconnect the utility from the input bus of the system.

11. Disconnect the electrical path from the output of the system in order to protect the system for electrical backfeed prevention.

12. Allow the capacitor banks to bleed down for approximately 5 minutes in order to dissipate any residual energy that may exist in the following components: the bus, the armature leads and the fuses.

Dual Input with Two Switches

1. Perform the "Pre-Shutdown" procedure in the "Shutting Down a Multiple Module System (MMS)" section before proceeding with this procedure.

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Illustration 22	g01798275
User Interface Panel on the MMU (2) Keyswitch

2. Turn the keyswitch (2) on each MMU to the "Bypass" position. Refer to Illustration 22.

3. Remove the key from the keyswitch (2) on each MMU. Secure the keys.

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Illustration 23	g00948144

4. Hit the "Home" button on the user interface panel of each MMU. Verify that the MMU is in the "Bypassed" mode. Refer to Illustration 23.

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NOTICE
Do not proceed with this procedure if the system does not enter the bypass mode. Equipment damage and load interruption may occur. Contact your local Caterpillar Dealership.

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Illustration 24	g01796613
User Interface Panel on the System Cabinet (1) Keyswitch

5. Turn the keyswitch (1) on the System Cabinet to the "Bypass" position. Refer to Illustration 24.

6. Remove the key from the keyswitch (1) on the System Cabinet. Secure the key.

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NOTICE
Make sure that the electrical path to the load of the facility is not affected when you perform the following steps. Do not allow the load of the facility to be dropped.

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Illustration 25	g01797234
(3) Maintenance Bypass Switch (8) Key

7. Insert the key (8) into the Maintenance Bypass Switch (3) in the Input/Output Cabinet. Refer to Illustration 25.

   Note: Although the keys are similar in appearance, the key (8) for the Maintenance Bypass Switch (3) is different from the key for the user interface panel.

8. Turn the key (8) for the Maintenance Bypass Switch counterclockwise.

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Illustration 26	g01798373
Input/Output Cabinet (3) Maintenance Bypass Switch (4) Output Isolation Switch

9. Close the Maintenance Bypass Switch (3) that is located in the Input/Output Cabinet. Refer to Illustration 26.

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Illustration 27	g01779897
System Cabinet The switches go from MMU 1 to MMU 4 in a descending order. (6) Input Isolation Switches (7) Output Isolation Switches

10. Open the Output Isolation Switches (7) that are located in the System Cabinet for each MMU. Refer to Illustration 27.

11. Open the Output Isolation Switch (4) that is located in the Input/Output Cabinet. Refer to Illustration 26.

12. Install safety locks by using the tabs for lockout on the front of the switches in the Input/Output Cabinet.

13. Open the Input Isolation Switches (6) that are located in the System Cabinet for each MMU. Refer to Illustration 27.

14. Disconnect the utility from the input bus of the system.

15. Allow the capacitor banks to bleed down for approximately 5 minutes in order to dissipate any residual energy that may exist in the following components: the bus, the armature leads and the fuses.

Dual Input with Three Switches

1. Perform the "Pre-Shutdown" procedure in the "Shutting Down a Multiple Module System (MMS)" section before proceeding with this procedure.

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Illustration 28	g01798275
User Interface Panel on the MMU (2) Keyswitch

2. Turn the keyswitch (2) on each MMU to the "Bypass" position. Refer to Illustration 28.

3. Remove the key from the keyswitch (2) on each MMU. Secure the keys.

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Illustration 29	g00948144

4. Hit the "Home" button on the user interface panel of each MMU. Verify that the MMU is in the "Bypassed" mode. Refer to Illustration 29.

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NOTICE
Do not proceed with this procedure if the system does not enter the bypass mode. Equipment damage and load interruption may occur. Contact your local Caterpillar Dealership.

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Illustration 30	g01796613
User Interface Panel on the System Cabinet (1) Keyswitch

5. Turn the keyswitch (1) on the System Cabinet to the "Bypass" position. Refer to Illustration 30.

6. Remove the key from the keyswitch (1) on the System Cabinet. Secure the key.

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NOTICE
Make sure that the electrical path to the load of the facility is not affected when you perform the following steps. Do not allow the load of the facility to be dropped.

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Illustration 31	g01797234
(3) Maintenance Bypass Switch (8) Key

7. Insert the key (8) into the Maintenance Bypass Switch (3) in the Input/Output Cabinet. Refer to Illustration 31.

   Note: Although the keys are similar in appearance, the key (8) for the Maintenance Bypass Switch (3) is different from the key for the user interface panel.

8. Turn the key (8) for the Maintenance Bypass Switch counterclockwise.

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Illustration 32	g01798373
Input/Output Cabinet (3) Maintenance Bypass Switch (4) Output Isolation Switch (5) Input Isolation Switch

9. Close the Maintenance Bypass Switch (3) that is located in the Input/Output Cabinet. Refer to Illustration 32.

10. Open the Output Isolation Switch (4) that is located in the Input/Output Cabinet. Refer to Illustration 32.

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Illustration 33	g01779897
System Cabinet The switches go from MMU 1 to MMU 4 in a descending order. (6) Input Isolation Switches (7) Output Isolation Switches

11. Open the Output Isolation Switches (7) that are located in the System Cabinet for each MMU. Refer to Illustration 33.

12. Open the Input Isolation Switches (7) that are located in the System Cabinet for each MMU. Refer to Illustration 33.

13. Open the Input Isolation Switch (5) that is located in the Input/Output Cabinet. Refer to Illustration 32.

14. Install safety locks by using the tabs for lockout on the front of the switches in the Input/Output Cabinet.

15. Remove utility power from the input bus for the system.

16. Allow the capacitor banks to bleed down for approximately 5 minutes in order to dissipate any residual energy that may exist in the following components: the bus, the armature leads and the fuses.