Pelco SB2800 用户手册

PELCO Manual C426M-F (2/98)

13

WARNING:  Do not operate pan/tilt without limit
stops. Do not remove or reposition fixed limit stop
on the PT 2801000ASSY or PT2801002ASSY.
DAMAGE WILL OCCUR.

NOTE:  The PT2801001ASSY and PT2801003ASSY
are not equipped with pan limit stops. (Disregard
steps 1-5 below).

To set limit stops, perform the following steps
(refer to Figure 2-4).

1.

Loosen the pan limit stops.

2.

Turn the control unit on. Pan the unit to the right
until the desired right pan limit is reached.

3.

Move the right pan limit stop until it touches the
pan limit switch actuator. Move the stop a slight
distance further against the actuator until it “clicks”,
indicating opening of the limit switch. Lock the
stop in place.

4.

Pan the unit to the desired “left” position. Adjust
the left pan limit stop as described in Step 3.

5.

Pan left and right to both limit stops and check for
exact positioning. Tighten both stops securely.

Figure 2-4 Limit Stops

6.

Remove the cover plate from the left side of the
tilt table. Loosen the limit stop screws and tilt the
table, using the joystick, to the desired "up” posi-
tion.

7.

Move the “up” limit stop until it touches the tilt
limit switch actuator and “clicks”. Lock the stop
in place.

8.

Tilt the table to the desired “down” position and
set the stop in the same manner.

9.

Tilt the table up and down and check for exact po-
sitioning. Tighten both stops securely. Replace the
cover plate.

After the unit has been tested and stops aligned, turn
off the control and disconnect the AC cord from the
outlet. Remove the multiconductor cable from both the
pan/tilt and control unit. This cable can then be used
for installation by cutting the test cable and splicing
the ends onto the installation cable at the job site. Splice
the ends, color-to-color, onto the cable in the field, us-
ing the terminal blocks at each end.

NOTE: When wiring a system it is recommended
that the multiconductor cable have extra conduc-
tors for future use.

Connect the cable assembly between the pan/tilt and
the control unit. Plug the control unit into a 120 VAC
outlet and switch the unit on.

Move the joystick to the UP position. Observing the
“Front” label on the pan/tilt, the front of the tilt table
should move up. Move the joystick to the DOWN posi-
tion, and the front of the tilt table should move down.
Releasing the joystick should allow it to return to cen-
ter and the tilt table should immediately stop moving.

Move the joystick to the LEFT position and the com-
plete top assembly should rotate counterclockwise.
With the joystick moved to the RIGHT position, the
unit will rotate clockwise.

Both the pan and tilt motors are protected from me-
chanical over-travel by electrical limits which stop the
motors.