Flowserve RT92 Series - Manual (Page 8)

output has a second fuse (F2) which supplies power to the
position output circuit so that there will still be position output
available even if the main fuse blows. This second fuse is a .6"
2AG fuse rated at .25 A 250 V.
E. Relay Output Options
Refer to Figure 7. The RTU card with the current trip indicator has
been designed such that several different jumper configurable
output options are available. These are:
a. Contact closure to +V (terminal 2)
b. Contact opening from +V (terminal 2)
c. Contact closure to common (terminal 1)
d. Contact opening from common (terminal 1)
e. Straight contact closure (closed circuit)
f. Straight contact opening (open circuit)
VI. CUSTOMER CONNECTIONS
A. For the No Output Indication board, refer to Figure 8. However,
there would be no feedback pot connected to terminals 1, 7, and
8. If the customer did request a feedback pot, it would be
connected as described in paragraph IV.B.2. There would be no
meter connected to terminal 10 because there is no 0-5 volt
output from this board.
B. For the Position Output Indication board, refer to Figure 8.
C. For the Current Trip Indicator board, refer to Figures 7 and 8.
There would be no feedback pot connected to the terminal strip
and no meter connected to terminal 10. The actuator side of
terminal 10 still comes from connector B3 but it is not the 0-5
volt output. It is the circuit shown in Figure 7.
VII. TROUBLESHOOTING
To determine whether the basic actuator or the circuit board is at
fault, replace circuit board with a known good board.
NOTE: When ordering replacement parts, i.e., actuator motor(s), etc.,
please use both the actuator code and the RTU code as found on the
nameplates attached to the actuator base.
Flow Control
Worcester Actuation Systems
Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function
safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial
service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore
assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should read and understand the Installation
Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in connection with the specific application.
While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as a guarantee of
satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this product. Because Flowserve
is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice. Should any question arise concerning
these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices.
For more information about Flowserve Corporation, visit www.flowserve.com or call USA 1-800-225-6989.
FLOWSERVE CORPORATION
Flow Control
Worcester Actuation Systems
5114 Woodall Road
P.O. Box 11318
Lynchburg, VA 24506-1318
Phone (434) 528-4400
Fax (434) 845-9736
© 2004 Flowserve Corporation, Irving, Texas, USA. Flowserve and Worcester Controls are registered trademarks of Flowserve Corporation. FCD WCAIM2011-00 Printed in USA.
(Part 09599)
SYMPTOMS
1. No response from unit in
remote or local control
2. Works with local switches but
no response under remote
control.
3. Motor starts to run but then
trips off before actuator has
reached desired position.
POSSIBLE CAUSES
No power; Main fuse blown;
Logic fuse blown; One or both
remote input(s) grounded; Board
defective; Defective motor(s);
Defective limit switches
Remote input circuit broken;
Input voltage not close enough
to ground potential at Terminal 1
I-Limit pot not set correctly; (Full
CW=Maximum trip current);
Torque of valve too high;
Defective board; Defective
motor(s)