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I.B. 29C892B

button to choose a particular category, Phase for example, and the next selections are displayed Trip or No Trip (Figure 3-28).

Step 4: Once again, use the Right-Arrowor Left- Arrow pushbuttons, if required, to move to a different test category. Use the Select pushbutton to choose a particular category, Trip for example, and two different notices are momentarily displayed before the next selection appears (Figures 3-29and 3-30).

Step 5: After the two momentary displays, the test current screen is displayed permitting the selection of the desired test current (Figure 3-31).

Step 6: The blinking cursor indicates the selectable test current field. The current initially displayed is the minimum test current value. Use the U p o r Down pushbuttons to alter the current value.

Step 7: Once all the test parameters have been select- ed, hold Save pushbutton depressed and depress Select pushbutton to initiate the test. When the test is completed, a cause of trip message is displayed (Figure 3-32).

Step 8: Use the Up-Arrowpushbutton to return to the main menu.

Testing will not be permitted to proceed if there is greater than 0.4 per unit of current flowing on a phase circuit or 0.2 per unit of current on a ground circuit. The maximum permitted current value can be determined by multiplying the appropriate per unit value (0.4 or 0.2) times the ampere rating of the installed rating plug.

Notice: For currents less than the trip unit setpoint, no message is displayed after the “Accepted Message.” The trip unit will not be placed in a Test Mode and, therefore, no pickup LEDs will flash. The trip unit, however, must be reset. The OPTIMizer will eventually return to the main menu.

3-10 COPY AND DOWNLOAD COMMANDS

The OPTIMizer can quickly download trip unit setpoints from one breaker to other breakers in a system. The per-unit values (not the current ampere values) are copied from one breaker and downloaded to any other breaker in the OPTIM family within a system. The settings are permanently retained in the memory of the OPTIMizer until another copy sequence replaces them.

3-10.1 USING THE COPY COMMAND (CP)

Plug the OPTIMizer into the trip unit that the settings are to be copied from. Move the cursor to the main menu item CP. Press the Select key and wait while the OPTIMizer reads the trip unit’s setpoints. The message Accepted will be displayed if the copy was successfully completed. The settings are now stored within the OPTIMizer's memory and will be retained even after the OPTIMizer is turned off.

3-10.2 USING THE DOWNLOAD COMMAND (DL)

Plug the OPTIMizer into the trip unit that the stored settings are to be downloaded to. Enter the password for the OPTIMizer within the password main menu item PA. Move the cursor to the main menu item DL. Press the Select key and wait while the OPTIMizer gets the address of the trip unit and then downloads the OPTIMizer's stored settings to the trip unit. If the OPTIMizer’s password was not entered, the operator will be required to first enter their password and then reselect the Download menu item from the main menu. The message Accepted will be displayed if the settings were successfully downloaded.

Notice: The Copy /Download commands will not change factory enabled functions such as ground fault trip or alarm. When copying from a trip unit with ground fault trip to a trip unit with ground fault alarm, only the pick-up, slope, and time adjustments are copied.

Some breakers such as the DS will have setting limitations based on the rating plug value. If settings are downloaded which are not within the allowable limits of the trip unit and rating plug, an error message will be displayed. See I.L. 29C891 Table 3.3 for allowable set- tings. This may also be the case for ground fault settings in breakers above 1200 amps.

3-11 RESET TRIP UNIT (RE)

The trip unit status indicators are generally reset by pressing the Reset pushbutton on the trip unit. In some instances, such as when a motor operator is used with on an OPTIM breaker, it may be desirable to use a remote reset. The reset trip feature is used in this case.

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