B00064-0 (AUTO-67) 7/00 Page: 1 of 2
© 2000, Flowserve Corporation, Provo, UT
Automax Valve Automation Systems
Installation, Operation and Maintenance Instructions
Introduction:
The Apex 5000 Modular Positioning System (AMPS) has
three options for internal limit switches:
Each of these options is easily installed and adjusted in
the field with no housing modification required.
TYPE K
(2) SPDT Mechanical Switches
10 Amp 125 Vac
1/2 Amp 125 Fdc
(Form C)
TYPE M
(2) SPST Proximity Switches
.41 Amp 125 Vac
1/2 Amp 100 Vdc
Max. contact 50 Watts Resistive
(Form A)
TYPE N
(2) SPDT Proximity Switches
1/4 Amp 125 Vac
1/4 Amp 24 Vdc
Max. Contact 3 Watts Resistive
(Form C)
Switches are mounted and prewired (soldered) to printed
circuit boards. The boards include a unpluggable terminal
block for easy field connection. Switches are tripped by
quick set cams mounted on a special positioner shaft.
Factory installed units are complete with top switch set to
trip at full clockwise position. Field installation kits include
(1) switch card, (1) positioner shaft (complete with quick
set cams), (2) replacement snap rings, and (2) switch
card mounting screws.
Installation:
Caution: Be sure supply air pressure is removed and no
pressure exists in actuator before installation.
1. Remove positioner from actuator (it is not necessary
to remove air lines) and remove cover.
2. Remove positioner shaft snap ring on outside of
housing.
3. Push span arm away from shaft to remove pressure
on cam. Holding cam, remove cam/shaft assembly.
4. Install (1) snap ring on limit switch shaft in groove
closest to quick set cams.
5. Apply a light coat of lubricant (Lubriplate MAG-1
grease or equivalent) to shaft between grooves.
6. Push span arm out of the way and install shaft in
positioner. Make sure cam and shaft flats are properly
aligned (see “Mounting” and “Cam Installation” in
Positioner IOM B00062).
7. Install (1) snap ring in bottom shaft groove to secure
shaft in positioner.
8. Place switch card in positioner, align holes and loosely
fasten with (2) screws. Holes are slightly oversized
to allow for proper spacing between switch and quick
set cams.
9. Push (or pull) on quick set cams and rotate (or rotate
shaft) to check for switch tripping. Then tighten
mounting screws.
10. Replace positioner on actuator. Note: Changing shaft
may affect positioner calibration. Check and recali-
brate positioner if necessary.
11. Calibrate limit switches by varying positioner input to
provide desired switch trip position. Push (or pull) on
appropriate quick set cam and rotate until switch trips
or untrips as desired (use an ohmmeter or other
continuity checking device).
12. Remove conduit plug (use 3/8" Allen wrench) and
make electrical connections following applicable
electrical code requirements. The circuit board
indicates the normally open, normally closed and
common terminals for each switch.
13. Replace cover.
Special Requirements for Applications
Involving Weather or Periodic Hose-down:
The Apex 5000 positioner requires unrestricted exhaust.
A breather is provided in the housing bottom. If the posi-
tioner is mounted such that rain or hose-down fluid might
get inside through the breather, special preparation is
necessary. Water or other fluid ingression may short out
limit switches. Two options are available:
1. Plug breather port (using a 3/8" NPT pipe plug) and
allow the positioner to exhaust out through electrical
conduit. This requires that no conduit seals be used
and that the user provide means for exhaust air to
escape conduit.
2. Pipe a suitable breather line to the breather port.
Avoid the use of loops or other configurations that
might trap fluid or otherwise restrict exhaust flow and
affect positioner performance. Use a simple vertical
line six to twelve inches long with output towards the
ground (see Figure 1).
APEX 5000 Limit Switch Options
Flowserve Corporation 765 South 100 East Phone: 801 373 3028
Flow Control Division Provo, Utah 84606 Facsimile: 801 489 2228
www.flowserve.com Email: actuators@flowserve.com
(4 pages)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals