Flowserve BUSwitch User Manual

BUSwitch™with FOUNDATION®Fieldbus Protocol

Installation, Operating and Maintenance Instructions

Flowserve Corporation 1350 N. Mountain Springs Parkway 1978 Foreman Dr. Flow Control Division Springville, Utah 84663-3004 Cookeville, TN 38501 www.flowserve.com Phone: 801 489 8611 Phone: 931 432 4021

BUSwitch

™

with

OUNDATION

Fieldbus Communications Protocol

Installation, Operating and Maintenance

Instructions

BUSwitch™with FOUNDATION®Fieldbus Protocol

Installation, Operating and Maintenance Instructions

Table of Contents

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Principles of Operation . . . . . . . . . . . . . . . . . . . . . . 2

Printed Circuit Board Specifications . . . . . . . . . . . . . 3

Start-up Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . 4

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . 5

Adjustment of Switch Cams. . . . . . . . . . . . . . . . . . . 6

BUSwitch™Embedded Software Specs . . . . . . . . . . 6

Resource Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Resource Block Parameter Table. . . . . . . . . . . . . . . 7

Transducer Block. . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Pneumatic Actuator Operation. . . . . . . . . . . . . . . . . 9

Valve Position Monitoring and Reporting . . . . . . . . . 9

Auxiliary Dry Contact Input . . . . . . . . . . . . . . . . . . 10

Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Transducer Block Parameter Table. . . . . . . . . . . . . 11

DI Function Block Parameter Table . . . . . . . . . . . . 14

DO Function Block Parameter Table . . . . . . . . . . . 15

Introduction

Flowserve’s BUSwitch™uses the FOUNDATION

Fieldbus communication protocol to operate pneumatic valve actuators and monitor/report their position. BUSwitch™also provides an odometer and stroke timer to assist in preventative maintenance.

Principles of Operation

BUSwitch™utilizes two discrete output function blocks (DO-1 and DO-2) to energize piezo or coil actuators, which act as pilots to shift a large capacity spool valve.For spring retur n and double acting applications with a desired fail position (open or closed) DO-1 is used to operate a single pilot. For applications requiring fail in last position, both DO blocks are used with a “dual coil” pilot configuration.

In dual coil mode, users may choose to de-energize piezo/coil elements after the valve has reached its desired position or may configure the elements to remain energized (factory default)(see “Transducer Block”).

Valve position is sensed with two limit switches. BUSwitch™communicates the state of these limits in the transducer block’s SOLENOIDE_CLOSED and SOLENOIDE_OPENED parameters and in the READBACK_D parameters of DO-1 and DO-2.

The transducer block’s ODOMETER parameter tracks the number of valve strokes. It may be reset using RESET_ODOMETER.

The transducer block’s transition alarm alerts the used if the stroke time exceeds the time in the parameter TIME_OUT, this alarm is also passed to the OUT_D of the DI-1 block.

Two discrete input blocks are factory-configured. DI-1 is a discrete value indicating the stroke exceeded a specific time. DI-2’s OUT_D parameter provides a link to an external dry-contact input (terminal P4). This input is jumper-selectable to normally open or normally closed (jumper J1/J2). Common uses for this input include valve packing pressure monitoring.

A 2-wire cable using the FF H1 (31.25 Kbps) protocol provides communication and power to the FF Communication Board.The communications board, switches, and piezo/coil pilots are all connected to an interface board.Two versions of this interface card are available:

• 2-Wire for bus-powered pilot applications. Utilizes ultra-low power piezo pilot valves.

• 4-Wire for externally powered pilot applications. Utilizes a wide range of 24VDC coil pilot valves.

The communications card operates from 9.5 to 32 VDC. BUSwitches are configured to draw 18 mA of current. Current consumption from the fieldbus segment will remain constant whether a piezo/coil actuator is activated or not.

BUSwitch™with FOUNDATION®Fieldbus Protocol

Installation, Operating and Maintenance Instructions

Start-up Guide

CAUTION

The BUSwitch™may cycle during a configuration download. Exercise caution in handling valves that may be stroked during these procedures.

For best results, Flowserve strongly recommends reading this entire document before attempting to configure and commission BUSwitches.

1 Following the instructions in “Mechanical

Installation,” install the BUSwitch™onto a pneumatic actuator and turn supply air on.

2. Following the instructions in “Electrical connections,” connect fieldbus and optional dry-contact wiring.

3. Referring to control system or configuration system documentation, install BUSwitch™device description (DD) files onto system hard drive. Note:

Readme file on DD floppy contains instructions.

Note: For Fisher DeltaV systems, the DD files must be copied to a directory or folder named “464C4F” in order for the system to find them.

4. Initialize communications with device and bring up the “Live List.” BUSwitches have been configured from the factory with an ID of “464C4F5053:BUSWITCH: [serialnumber]” and a default tag of “FLOWSERVE BUSWITCH.” Note the serial number.

5. Change the BUSwitch™attribute Device ID to the value noted in step 4 and change the Device Tag to the appropriate value.

6. Assign the Tag configuration in step 5.

7. BUSwitches are shipped with resource block, transducer block, (2) DO blocks and (2) DI blocks pre-configured unless specially configured by agreement with customer.Refer to the appropriate sections in this manual for the default configuration. Make any desired changes to this configuration and download.

Printed Circuit Board Specifications

OUNDATION

Fieldbus Information

Power Requirements: Communications Card

XA0239 Communication Card

Power requirements: 2-Wire Version

XA0238 Interface Card Version 2.0

Power requirements

XA0242 Interface Card

Temperature

Operational -40°F to +185°F

Storage -40°F to + 250°F

†

To operate, an external 24 VDC source must be locally supplied to the interface card.

Bus powered

9.5-32 VDC at 18 mA

Bus powered by XA0239 Communication Card

†

: 4-Wire Version

24 VDC

• 10 mA quiescent

• 510 mA max. with

solenoid activat

(-40°C to + 85 °C)

(-40°C to + 120°C)

Manufacturer ID 464C4F (Hex) Name 46 6C 6F 77 73 65 72 76 65

Device

Type 0x0x5053 (Hex) ID

Device Descriptions are supplied on included disk

ette

F l o w s e r v e

464C4F5053:BUSWITCH:xxxxxx Max. length of 32 characters. Characters 21 through 32 are used for board serial number

BUSwitch™with FOUNDATION®Fieldbus Protocol

Installation, Operating and Maintenance Instructions

8. Using the DO-1.OUT_D value parameter (and DO-2.OUT_D for dual coil mode), stroke the valve (Discrete 0 = de-energized; Discrete 1 = energized) and set limit switches, referring to “Adjustment of Switch Cams” section. Circuit board mounted LED’s light when switches are tripped.

9. This is the minimum configuration to operate the actuator and read valve position.Refer to FOUNDATION®Fieldbus standards for DO and DI blocks to establish more sophisticated control strategies. Refer to the block sections in this manual for more information on BUSwitch™functionality.

Mechanical Installation

BUSwitch™Mounting:

1. Installation is best performed with Flowserve NAMUR mounting kits.These kits allow direct mounting of the BUSwitch™shaft to the actuator pinion without a coupler.The NAMUR mounting kits will work with any actuator conforming to the NAMUR standard for accessory mounting hole locations and pinion dimensions. Simply attach the bracket to actuator and BUSwitch™to the bracket with the included fasteners.The BUSwitch™shaft features an integral alignment pin that engages the tapped pinion hole. Flowserve also offers a full line of non-NAMUR mounting kits.

Spool and Tubing Configuration:

The following instructions apply to BUSwitch™configured with integral pilot valves and spool valve.For non-integral pilot/spool valves, follow manufacturer's instructions for piping.

1. For spring return actuators, a 4-way spool valve is provided with port #2 plugged. For double acting actuators, the same valve is provided with no plugs. Make sure the correct spool is selected before installing tubing.

2. Make sure all air pressure is removed before installing tubing.

3. Attach tubing according to Figures 1 or 2 at right, depending upon application. Attach supply tubing to Port 1 and use 3 and 5 for exhaust.

4. To prolong actuator life use only clean, dry plant air.Lubricated air is not required, although it is recommended, particularly for high cycle applications.

315

531

2 4

Figure 1

Figure 2

Lubrication

All BUSwitch™spool valves are pre-lubricated and will operate dry (with no additional lubrication). The use of lubricated air will not interfere with the functioning of the BUSwitch™. If air lubrication is used, the oils listed below are popular, easily obtainable, fluids that are recommended for use with the BUSwitch™spool valve:Gulf Harmony 47, Mobil DTE Medium, Shell Tellus 29, Texaco Rondo B, Sohivis 47 and Sunnis 921. Many other lubricants are acceptable providing they do not contain detergents that will attack Buna N or Viton Seals.

Electrical Connections

CAUTION

To prevent ignition of hazardous atmospheres, keep cover bolts tight while circuits are live. Disconnect supply circuit before opening.

Entry into the BUSwitch™housing is made through three 1/2

” NPT conduit entries. Figures 3 and 4

provide terminal locations on the interface card. Connection of the data cable is made to connector

P3 – observing polarity.Incorrect polarity will not damage the electronics, but it will prevent communication. For hazardous locations, Underwriters Laboratories (UL) and the National Electric Code (NEC) require an approved sealing fitting within eighteen inches of the switch enclosure.Sealing fittings are not required for Division 2 non-incendive applications.

CAUTION

Make sure power is turned off when making electrical connection. Inadvertent power cycling will result in BUSwitch

™

shutdown. After a power shut-down wait at least five seconds before attempting to turn power back on to assure BUSwitch™start-up.

Open conduit entries must be closed after installation using a close-up plug approved for hazardous locations. Conduit and plugs must fully engage five threads.

Ter minal P4 is provided for the input of a signal from an external dry-contact switch. Jumper J1 and J2 change the configuration of this input. Factory setting is Normally Closed with DI-2 OUT_D value Discrete 1 = contact open and Discrete 0 = contact closed. Change the jumper setting to “normally open” for Discrete 0 = contact open.

BUSwitch™with FOUNDATION®Fieldbus Protocol

Installation, Operating and Maintenance Instructions

Figure 3

Interface Card: 2-Wire Version XA0238

Figure 4

Interface Card: 4-Wire Version XA0242

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