Basis Weight Actuator
6
Figure 4. Actuator and Controls
INDICATOR BOX
ACTUATOR
OPTIONAL
REMOTE STATION
NOTES:
132 FEET (40m) MAX. WITH 1.5mm
2
CONDUCTORS
320 FEET (100m) MAX WITH 2.5mm
2
CONDUCTORS
MAX 1000 FT, (255m) WITH 0.75mm
2
CONDUCTORS
1
1
2
2
A3754-4 / IL
Note
For additional information on use of the
manual station when there is no remote
station, see the External Control Signal
portion of the Wiring section.
The Valve Position Indicator is a LED panel meter that
displays valve position from 0 to 100 percent. It is
mounted in the manual station.
The two additional options for remote position indica-
tion are the remote station described below and a cus-
tomer-supplied, remote indicator that can be con-
nected to the control box. See figure 6 and the
Optional Remote Position Indication portion of the Wir-
ing section of Installation.
Remote Station (Optional)—This station (figure 6)
allows manual control of the actuator and valve from a
location up to 1000 feet (305 meters) from the Step-
motor Interface. Maximum allowable distance between
the Stepmotor Interface and the remote station de-
pends on wire size. The limit is 1000 feet (305 meters)
for a wire size of 0.75 mm
2
(approximately 18 AWG).
Operation of the remote station overrides operation of
the manual station located in the Stepmotor Interface.
When the system is equipped with this remote station
and is under computer control, the manual station in
the Stepmotor Interface cannot gain control of the sys-
tem, until you first switch the remote station to MAN
(manual).
For manual operation of the valve from the remote sta-
tion, turn the MAN–COMP knob to MAN (manual).
Then, press and release the remote control button.
Now you can rotate the DEC–INC knob toward DEC
(decrease) to close the valve or toward INC (increase)
to open the valve. If you turn the knob all the way to
DEC or INC, the knob will remain engaged, and the
valve will open or close until a limit switch stops motor
operation. If you wish to operate the valve in slow
speed from the remote station, press the remote con-
trol button and continue to press it
while using the
DEC–INC knob.
Installation
Valve and Actuator
Normally, the actuator is shipped mounted on the
valve body. After you have wired the actuator, install
the valve in the pipeline by following instructions in the
separate valve instruction manual.
It is easier to determine the fully open and closed posi-
tion of a valve when the valve is out of the pipeline. If
possible, check the operation of the actuator limit
switches and of the valve position indicator before
installing the valve in the line. Refer to the Adjustment
section to check the operation of the limit switches and
indicator.
If the actuator and valve have been purchased sepa-
rately or if the actuator has been removed for mainte-
nance, mount the actuator on the valve by following
the Mounting the Actuator instructions in the Mainte-
nance section.
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern