S&C Vista - Page 21

S&C Instruction Sheet 682-510 21
Operation
STEP 7� Press the PUSH TO TEST LAMPS pushbutton on
each motor operator control board to ensure all
of the LEDs are working. See Figure34.
STEP 8� The LOCAL/REMOTE switch should already
be in the Local position. If the switchgear is
energized and feeding load, decouple the oper-
ator before continuing. The following operations
may be performed using pushbuttons, as shown
in Figure 34:
• Close to Open
• Open to Grounded (optional)
• Grounded to Open (Optional)
• Open to Close
An electrical interface in the controls
will not allow the motor operators to move
to/from the Close position directly from/to the
Grounded position.
WARNING
ALWAYS make sure the cables con nected to the load-
interrupter switch or fault interrupter are de-energized
before selecting the Grounded position� Failure to
follow this precaution can result in a flashover,
injury, and equipment damage�
Figure 34� The motor operator control board pushbuttons�
CLOSE pushbutton
OPEN pushbutton
PUSH TO TEST
LAMPS pushbutton
GROUND pushbutton