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2. Unplug the connector (105.2) from the
bottom of the controller board and wait
for the red LED on each capacitor board
to stop blinking. This indicates discharge
of the capacitors to a low voltage. Do
not unplug connector (106.3) from the
capacitor boards, or damage to the
capacitor board or the controller board
may occur.
3. Remove the cables from the
pushbuttons (53.0, 54.0) on the panel
(109.0). This might be easier to perform
after the panel is loose as in step 5.
4. Remove the screws (109.1) and
retaining elements from the panel
(109.0).
5. Remove the panel (109.0).
6. Unplug the connector (105.5) from the
bottom of the controller board (105.0)
and the several connectors at the top of
the controller board (105.0).
7. Disconnect the ground wire (105.4).
8. Remove the mounting nuts and washers
(105.3) from the side of the mechanism
housing (60.0).
9. Remove the controller board (105.0).
10. Install the replacement controller board
(105.0) and tighten the mounting nuts
and washers (105.3).
11. Connect the ground wire (105.4).
12. Plug in the connectors (105.2, 105.5
and the several connectors at the top of
the controller board).
13. Fasten the panel (109.0) with the
screws (109.1).
14. Reconnect the cables to the pushbuttons
(53.0, 54.0).
When work is finished, operate circuit
breaker and close and open several times,
and check that all screw connections are
tight. Refer to “Installation checks and
functional tests” on pages 6-9.
Capacitor board replacement
1. Remove the front cover of the operator
housing.
2. Use appropriate procedures to prevent
electrostatic discharges.
3. Unplug the connector (105.2) from the
bottom of the controller board and wait
for the red LED on each capacitor board
to stop blinking. This indicates discharge
of the capacitors to a low voltage. Do
not unplug connector (106.3) from the
capacitor boards, or damage to the
capacitor board or the controller board
may occur.
4. Unplug the connector (106.3) from the
capacitor board (106.1).
5. Remove the mounting screws (106.5)
from the underside of the mechanism
housing (60.0).
6. Remove the capacitor board (106.1).
7. Install the replacement capacitor board
(106.1), fasten the mounting screws
(106.5) and plug in the connector
(106.3) to the board.
NOTICE
Capacitor discharge plug (105.2)
Disconnect control power prior to removing or
replacing the capacitor discharge plug. Refer to
Figure 2 on page 7.
To discharge capacitors:
Disconnect control power to the circuit breaker
by opening the disconnect device (device 08 in
the typical schematic in Figure 14 on page 24)
located in the control compartment.
After control power is off, disconnect the
capacitor discharge plug (105.2) from the
controller board (105.0) to discharge capacitors.
To reconnect capacitors:
Disconnect control power to the circuit breaker
by opening the disconnect (device 08 in the
typical schematic in Figure 14 on page 24)
located in the control compartment.
Insert the capacitor discharge plug (105.2) (with
six pins) into the left-hand receptacle on the
controller board (105.0). Ensure that the plug is
properly seated and the plug position is level
with the power supply connection plug (105.5)
that is located to the right of the capacitor
discharge plug.
After the capacitor discharge plug is firmly
seated, reconnect control power to the circuit
breaker (device 08 in the typical schematic in
Figure 14 on page 24).
