SEAL GP-CRANKSHAFT 7W3200 - Caterpillar

Calibration Procedure for the AC Current
Note: This procedure needs to be accomplished with the use of a load bank. Do not use the facility load for this calibration.Note: Perform this procedure whenever the following components are replaced: AC Interface Board and System Controller Board. Calibration of the AC Voltage is also required.
Table 1
Required Tools    
Part Number    Description    
155-5175     AC Current Probe    
146-4080     Digital Multimeter    
OR    
9U-7330     Digital Multimeter    
Bring the RPM of the system to zero.
Place the key switch in the Bypass position for the MMU that is being calibrated.Note: In a Single-Module System, place the key switch in the Bypass position on the System Cabinet.Note: Proceed to step 6 for Single-Module Systems.
Connect a PC to the Parallel Cabinet Interface Board that is located in the System Cabinet.
Illustration 1 g01051091
Rotate the switch on the Parallel Cabinet Interface Board to the corresponding Multiple Module Unit.Proceed to Step 7.
Illustration 2 g00839256
Illustration 3 g00840027
Remove all sheet metal panels. Remove the sheet metal panel for the System I/O and Isolation Board (2).
Connect a PC to the System RS232/RS485 port that is located on the System I/O and Isolation Board. Make sure that jumper Jmp1 (3) on the System I/O and Isolation Board is in the correct position.Note: The lower side is RS232 and the higher side is RS485.
Close the Input Circuit Breaker in order to restore power to the System.The System will start but the key will remain in "Bypass".
Start your PC.
Illustration 4 g00840053
Run UPS View by double clicking over the icon (7) on your PC.
Illustration 5 g01003391
Click on the "PC Settings" (7) in the menu bar.The "UPS View Connection Settings" window that is shown in illustration 5 will open.
Check the "Direct Connect (serial)" radio button (6) .
Select your PC COM port (8) for this serial connection and set the baud rate (9) .Note: The radio button for "Detailed MMU Telemetry" must be checked.
Click on "OK" Button in order to accept these settings.
Illustration 6 g01003435
Click on "Connection" on the menu bar.
Select "Connect" from the drop-down menu.You will be connected to the system and you will receive the System Telemetry.
Illustration 7 g00840122
Once you are connected, click over the "Enter Password" (13) in the menu bar.The "Enter User Name/Password" window that is shown in illustration 7 will appear.
Enter "User Name" and "Password".
Click on "OK" button.After the password has been entered, the menu option will change.The menu bar will contain a "Calibrate" option.Note: Make sure that the flywheel vacuum is less than 58 mTorr before the system starts this calibration.
Click on "Calibrate".
Select "AC Currents".You will hear input contactor K1 and output contactor K2 close. The static switch will turn on. The DC Bus voltage will increase. A "Calibration of a Channel" window will open.
Click on "View Status" button.Another "Calibration Group Status" window will open.
Drag the "Calibration Group Status" window aside if the view of "Calibration of a Channel" window is blocked.
Click on "Use Defaults" on "Calibration of a Channel" window.
Illustration 8 g00840916
Note: Add the approximate full load to the system