EATON CORPORATION Cutler-Hammer
Pow-R-Command 750 LCD Display Instruction Leaflet IL01412018E
©
Copyright 2009
11
Symptom 4:
I have a 30-circuit panelboard, and my Smart Breaker
positions on the left side are not numbered correctly from within
the LCD.
Cause:
The controller needs to be configured to represent the type of
panelboard that it is controlling (i.e., 42 circuit, 30 circuit, etc.).
Solution:
The controller needs to be configured to represent the type
of panelboard that it is controlling. In this case, the controller needs to
be configured to control a 30-circuit panelboard. All controllers default
to control a 42-circuit panelboard. To adjust this setting, the following
steps need to be taken:
1. From the
MAIN MENU
, scroll down and highlight, but don’t
select,
BYPASS LOADS ON/OFF
. Hold the
BACK
button for about
5 seconds.
2. An
ADVANCED MENU
item will appear. Scroll down and select
ADVANCED MENU
.
3. Scroll down and select
SUBPANEL CONFIGURATION
. Here, you
should see a list of BCBs and their addresses. (If nothing shows
up on the BCB list, please stop and go through the steps
depicted in Symptom 2 above and then continue.)
4. The BCBs should be split into left and right for each panelboard.
Highlight the first BCB that needs to be configured for a 30-
circuit panelboard. Press
SEL
.
5. Scroll down to
TYPE
and press
SEL
. If this BCB is a left side
BCB, then
SEL
LEFT-30. If it is a right side BCB, then
SEL
RIGHT-30.
6. Repeat for the remainder of BCBs that need to be configured for
30-circuit panelboards.
Indicator Lights/LEDS
The LEDs on the controller and BCBs can be used to help diagnose
an issue with the current setup of the system.
Symptom 1:
Power LED not lit on controller when the power switch
is toggled on.
Causes:
1. No ac voltage to the controller transformer.
2. Incorrect voltage to the control transformer.
3. No 24 Vac voltage to controller unit.
4. Blown fuse within the controller.
Solutions:
1. Make sure there is ac voltage to the control transformer, and it is
the correct amount.
2. Controllers are available in various voltages. Check the trans-
former label for the correct input voltage.
3. Press the reset on the transformer, there will be a noticeable
click if it resets. The transformer may have tripped, if the trip
state continues after resets this is a sign of other issues. Make
sure no wires are pinched or shorted coming from the controller.
If none found, please contact technical support.
4. Check the plug on the right side of the controller for proper con-
nection of the 24 Vac from the transformer. If plugged in, check
for 24 Vac at the plug.
5. Check the internal fuse in the unit. It is located behind the face-
plate. Four screws must be removed to gain access to the fuse.
Check the status of the fuse in the lower right hand corner of the
unit. If this fuse is blown, it needs to be replaced.
Symptom 2:
Power LED lit on the controller but not lit on BCB when
the controller power switch is toggled on.
Causes:
1. No connection from the controller to BCB.
2. Incorrect wiring on the BCB from the controller.
3. Problem with the output voltage from the controllers.
Solutions:
1. Check the plug on the BCB and the controller for proper
connection.
2. Check for correct wiring of the BCB; see the side of the control-
ler and BCB for proper connections. Also, the connections are
included in the Instruction Manual.
3. Check for 24 Vac from the controller; see the label on the side of
the controller for the correct pins of the 4-pin connector. If volt-
age is not present, please contact PRC Technical Support Line at
1-888-252-6286, Option 3.
Symptom 3:
The “POWER” LED and the “LAN” LED are lit, and the
“RUN” LED blinks twice every few seconds on the BCB.
Cause:
There is a communication failure between the controller and
BCB caused by incorrect wiring of the BCB.
Solution:
Check wiring (L+ and L- may be crossed or 24V~ and COM
may be crossed from the controller to the BCB).
Symptom 4:
The “POWER” LED is lit, and the “LAN” LED flickers
every so often with the “RUN” LED blinking twice every few
seconds on the BCB.
Cause:
There is a communication failure between the controller and
BCB caused by incorrect wiring of the BCB.
Solution:
Check wiring; L- may be disconnected.
