Siemens SQM5 Instructions d'exploitation Page 20

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Technical Instructions SQM5… Reversing Actuators
Document No. 155-517P25
February 22, 2006
Page 20 Siemens Building Technologies, Inc.
Reversing Rotational
Direction, Continued
8. Firmly tighten the black potentiometer cam attachment screw while manually
holding the potentiometer position indication pointer in alignment. Check the
alignment again.
9. Re-install the white actuator-indicating dial by gently pressing it onto the
potentiometer cam attachment screw. Align scale position “0” on the actuator
position indicating dial with the dial pointer by rotating the dial in the clockwise
direction to avoid loosening the potentiometer cam attachment screw.
Shaft Installation
See Installation and Operation Instructions.
Preparation Before
Circuit Board Installation
WARNING:
Disconnect the power supply to the actuator before replacing the circuit
boards.
The black circuit board mounting
bracket, installed on the inside base of
the SQM5… actuator has four vertical,
slotted circuit board supports. Remove
the terminal section and circuit board(s)
from the mounting bracket.
The actuator motor capacitor is
attached to the lower section of the gray
plastic switch housing using snap-on
holding clips. Gently pull the capacitor
forward until it unclips and temporarily
place it on top of the gear housing. See
Figure 18.
EA0570R1
CAPACITOR
Figure 18.
CAUTION:
Do not disconnect any capacitor wiring.
AGA56.41/42/43
Circuit Board
Installation
1. Remove the AGA56.41/42/43…
circuit board from the packaging. The
circuit board is shipped as one board.
2. Separate the board at the perforation
by holding the circuit board at both
ends and gently bending the board
until it separates.
3. Move the terminal section containing
the auto/manual switch to the
opposite end of the base circuit
board.
4. From the switch housing side of the
actuator, guide the base circuit board
into the bottom of the circuit board
mounting bracket. See Figure 19.
BASE
CIRCUIT
BOARD
EA0574R1
TERMINAL
SECTION
Figure 19.
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