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Installation
Fitting the Option
8902/EQ HTTL Speed Feedback Option
If the option is not factory-fitted, follow the procedure given below.
WARNING!
Disconnect all sources of
power before attempting
installation.
Caution
This option contains ESD
(Electrostatic Discharge) sensitive
parts. Observe static control
precautions when handling,
installing and servicing this option.
The Control Card assembly needs to be
removed from the drive as follows to
fit the Option in "OPTION F" position.
1. Undo the two screws securing
Option A and Option B to the front
of the drive. If options are not
fitted, completely remove the
blank covers for the Option A and
Option B slots.
2. Undo the captive screws (A)
located in the top and bottom
handles of the control board.
Gently pull on the handles to
withdraw the board from the drive,
supporting any attached option
boards. Note that the boards are
sliding in top and bottom slots.
3. If fitted, remove Option A and/or B boards that are
mounted on the control board by separating the
connector at the rear of the option board from the
control board.
4. Remove the blanking plate from "OPTION F" location
(2 screws).
5. Remove the terminal block from the HTTL Option.
6. Offer up the HTTL Option through the "OPTION F"
cut-out as shown opposite. Fit the two locating pegs of
the large connector on the rear edge of the option
board into the locating holes on the control board, as
shown opposite.
7. Fit the two screws and crinkle washers (C) at the rear
edge of the Option.
DO NOT OVERTIGHTEN.
Tightening torque : 0.2Nm (28 oz-in).
Ensure locating pegs are correctly located visably
through locating holes.
A
B
B
A
Figure 2 Control board showing
Option correctly mounted
C
Locating
Holes
C
Figure 3 Rear of
Control Board
3
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