7:1
7: Service the Controller
DANGER
ONLY QUALIFIED ELECTRI-
CAL PERSONNEL FAMILIAR
WITH THE CONSTRUCTION
AND OPERATION OF THIS
EQUIPMENT AND THE HAZ-
ARDS INVOLVED SHOULD
INSTALL, ADJUST, OPER-
ATE, AND/OR SERVICE THIS
EQUIPMENT. READ AND UN-
DERSTAND THIS MANUAL
IN ITS ENTIRETY BEFORE
PROCEEDING. FAILURE TO
OBSERVE THESE PRECAU-
TIONS COULD RESULT IN
SEVERE BODILY INJURY OR
LOSS OF LIFE.
Know Function of
Service Aids
Understand Controller LED
Indicators
The LED indicators can be viewed
through the window on the face of
the controller hinged panel.
Red Fault LEDs
The controller has 12 red LEDs
that indicate drive status or a fault
condition. Ten of these LEDs will
illuminate when its respective fault
condition occurs, initiating an
appropriate and orderly drive
shutdown. The other two red LEDs
(BBK and SZ) indicate a status
condition. The controller will not
operate when the BBK LED is
illuminated though will operate
with the SZ LED illuminated.
The nominal status of these 12
LEDs is OFF. After a fault occurs,
the controller cannot be restarted
until the fault is cleared and the
controller is reset. The controller
can be reset by pushing the Reset
pushbutton (4SW) on the hinged
panel faceplate or a remote Reset
pushbutton available through
connector 2CN. Refer to Table 7-1
for a summary of these faults.
Green LEDs
RDY Indicates that proper rated
power is present on the
input terminals and that the
D-C precharge is complete.
The controller is ready to
accept a start command.
RUN Indicates the controller is
operating without any faults
present.
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