Flowserve Automax XCL UltraSwitch - Manual (Page 3)

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Automax XCL/XML Switch Box User Instructions FCD AXENIM0120-13-A4 02/15
flowserve.com
1 Introduction
Automax UltraSwitch™ limit switch enclosures provide local and re-
mote position indication for automated valves. They generally feature a
visual indicator with “red=closed” and “green=open” for intuitive local
position determination. The UltraSwitch is available with a number
of limit switch options for remote indication in a variety of electrical
applications. The device may also be used as a junction box for direct
installation of solenoid valves.
2 Installation
2.1 Mounting to Actuator
UltraSwitches may be installed to valves or valve actuators with a
variety of mounting hardware. For best results, specify the NAMUR
shaft option and NAMUR mounting hardware when installing to
NAMUR compliant actuator. These options allow direct coupling to
actuators without the need to use additional mounting kits, reducing
dead band.
Simply bolt the bracket to the actuator and bolt the UltraSwitch to the
bracket, leaving the bolts finger tight. For NAMUR applications, the
UltraSwitch shaft features an integral alignment pin. This pin must
engage the tapped hole in the actuator shaft. For non-NAMUR applica-
tions, make sure to properly install a coupler between the UltraSwitch
and actuator. Once the UltraSwitch is installed with fasteners loosely
tightened, stroke the actuator two or three times to align the bracket,
then tighten all fasteners.
2.2 Wiring Instructions
UltraSwitch enclosures feature pre-wired switches. All user connections
are made at a numbered terminal strip. Both external bonding and
internal grounding locations have been provided for use in installation.
A wiring diagram is located inside the cover and indicates which
terminal numbers correspond to switch contacts: normally open,
normally closed, common, etc. Simply follow the wiring diagram and
electric code to connect switches to your system.
For field wiring: ensure that any excess wire lengths or loops are
routed away from any moving parts and are short enough, or secured
to ensure a ¼” clearance between the wire and the inside surface of
the switch box cover.
NOTE: For all magnetically-tripped proximity switches, the top switch
(top and third switches for 4-switch versions) should only be used to
indicate the clockwise position: the bottom switch (second and fourth
switches for 4-switch versions) should only be used to indicate the
counter-clockwise position. Any deviation from these settings may
result in erratic indication.
Solenoids may also be wired through the UltraSwitch enclosure. At
least two auxiliary terminals are included as standard.
A ground screw is also included. Simply wire the solenoid to auxiliary
terminals, then connect power leads to the opposite terminal side.
Be sure to properly ground the solenoid at provided ground terminal.
UltraSwitch XCL series enclosures include two
¾ ” NPT conduit
entries and the XML series includes two M25x1.5 conduit entries.
Installation shall be per National Electric Code, local codes, and
manufacturers’ instructions.
2.3 Special Hazardous Location Instructions
Connecting cables must be rated for ambient temperatures above
100°C (212°F). Therefore select appropriately-rated cable.
a WARNING: To prevent ignition of hazardous atmospheres, conduit
runs must have sealing fitting located within 18 inches of the enclo-
sure to meet NEC regulations. See Solenoid nameplate for additional
electrical rating.
For ATEX and IECEx installations, an appropriately-rated Cable Gland
is required.
In all cases, environmental seals must be used to protect against
ingress of water through the conduit.
Any unused conduit entry must have a suitably-rated blanking element.
Modification of the product is not permitted. If equipment is modified,
then the equipment can no longer be used in explosive atmospheres.
a CAUTION:
•
Substitution of components may impair suitability for Zone 2
Increased Safety.
•
Do not disconnect equipment unless power has been switched
off or the area is non-hazardous. To prevent ignition of hazardous
atmospheres, keep unit tightly closed while circuits are live.
•
Due to the risk of static electricity, cleaning this housing by rubbing
should be done in a non-hazardous area. In this instance, the unit
must first be removed and then taken to a non-hazardous area.
•
To avoid the risk of potential electrostatic charging hazard, clean
only with a damp cloth. All grounding and bonding installation re-
quirements must be in Automaxance with the governing hazardous
location standards corresponding to the specific environment and
application the device will be installed in.
•
All installation, inspection, and maintenance of the equipment must
be performed by trained and authorized personnel. In addition, for
equipment certified for use in hazardous areas, all installation, in-
spection, maintenance and repair must be done by trained personnel.
•
Only Flowserve replacement parts must be used in order to not
invalidate certification.
•
Modification of the product including label and markings is not
permitted.