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I.B. 29C892B
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button to choose a particular category, Phase
for example, and the next selections are dis-
played Trip or No Trip (Figure 3-28).
Step 4: Once again, use the Right-Arrow or Left-
Arrow pushbuttons, if required, to move to a
different test category. Use the Select push-
button to choose a particular category, Trip for
example, and two different notices are momen-
tarily displayed before the next selection
appears (Figures 3-29 and 3-30).
Step 5: After the two momentary displays, the test cur-
rent screen is displayed permitting the selec-
tion 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-Arrow pushbutton 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 set-
tings 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 limita-
tions 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 set-
tings 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.