Flowserve Valtek StarPac 1 Intelligent Control Systems - Manual (Page 10)

41-10 Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611
Procedure for Upgrading to StarPac NT
Prior to making this upgrade, make sure that a current
copy of the system's .CCT file is saved and available.
Refer to the StarTalk software manual for details about
saving configuration tables if unfamiliar with this proce-
dure. Those converting from older SP DataStream
models will first need to save a .TBL file for the system
and then use the Flowserve Advanced Product Devel-
opment Configuration File Conversion Utility program
for Windows to convert the old parameter table to a
compatible Modbus file. Follow the prompted proce-
dure to make this conversion.
NOTE: This file must be created by a StarTalk 2.0x
version. (Please contact a Flowserve representative
with any questions.)
The upgrade kit consists of the following parts: StarPac
NT boardstack w/EPROM, NT User Interface Assem-
bly, Hallpot Mounting Bracket and new StarTalk soft-
ware. (If upgrading from an SP DataStream Model, a
plastic shroud should also be included.)
Upgrade Instruction
1. Disconnect all power sources and air supply to the
unit.
2. Disconnect all wiring to the user terminal block of
the StarPac. (Mark each wire pair for ease of re-
installation into new terminal block.)
3. Remove the large electronics cap (turn counter
clockwise) and take off the plastic shroud by remov-
ing the three assembly screws from the electronics
module.
4. Remove the old electronics module by first unplug-
ging the top three circuit boards. Remove the next
board by carefully disconnecting the eight-wire
pressure sensor connector from the bottom of the
board and the three-wire hallpot connector from the
top of the hallpot. Unplug the board from the re-
maining bottom board. Remove the last board by
disconnecting all of the interface connectors and
thermocouple wires. Next, use a 1
1 /
16
-inch allen
wrench to loosen the hallpot shaft connector set
screw. Rock the board slightly while pulling straight
out from the board to disengage the actuator pres-
sure sensors from their standoffs and the hallpot
shaft.
5. Remove the three screws attaching the use inter-
face terminal block to the base. Pull the old inter-
face wiring back through the base. (Twist the two
white plastic connectors against the wires and push
them into the hole in the base while pulling from the
terminal block side.)
6. All of the old StarPac electronics and user terminal
have now been removed. The pressure cables,
thermocouple wires, and the black and red two-wire
I/P cable should be left on electronic side of the
base.
7. Cut off the small white two-pin connector from the
I/P cable, leaving between 1 1 /
2
to 1 3 /
4
-inch of the
cable extending from the base. Strip the wire ends
approximately
1 /
4
-inch.
8. Remove the hallpot position sensor from the old
StarPac board by removing the 1 /
2
-inch nut and
locking washer. Discard the fiber washer. Attach
the hallpot into the new mounting bracket by align-
ing the three connector pins on the top of the hallpot
with the notched leg of the new mounting bracket.
The shaft of the hallpot extends into the 'U' of the
bracket.
CAUTION: Over tightening the mounting nut
will put excessive strain on the metal case of the
hallpot and may cause damage.
9. Begin installing the new NT components by first
replacing the new user terminal block. This is done
by gently twisting the two brown connectors back
against the attached wires and pushing these con-
nectors through the hole in the base from the small
cover side to the large electronics side. Replace
the three small mounting screws to secure the user
terminal block to the base.
10. Attach the new hallpot mounting bracket by first
removing the screw that is nearest to the center of
the base. The un-notched end of the hallpot bracket
uses this screw hole. Loosen the opposite screw
three full turns to allow the notched end of the
bracket to swing into place under the screwhead.
Insert the hallpot shaft into the coupling. Rotate the
bracket into place and reinsert the removed screw.
Check that the coupling is centered in the base
hole and does not touch the sides of the hole
before tightening the screws.
Do not tighten the
hallpot shaft set screw at this time.
The coupling cover is spring loaded to provide a
positive force on the feedback arm and this method
allows installation of the bracket without affecting
the spring load.
11. Unplug the new NT bottom board from the rest of
the stack. Plug the two interface connectors from
the user interface into their appropriate connectors
on the bottom of this board. Twisting the connector
once, prior to plugging it into the board, will keep the
wires bundled together and out of the way. Also,
folding the wires flat against the base will keep them
from pushing the board away from the base.
12. Carefully align the two actuator pressure trans-
ducer nipples into their pressure standoffs and
press firmly on the top of the two transducers to seat