Fisher DVC6200 User Manual

Instruction Manual Supplement	DVC6200 SIS Digital Valve Controller
D103601X012	September 2013

Safety manual for Fisherr FIELDVUE™ DVC6200 SIS Digital Valve Controller and Position Monitor

This supplement applies to

Instrument Level	SIS
Device Type	130a
Device Revision	1 & 2
Hardware Revision	2
Firmware Revision	4, 5 & 6
DD Revision	3, 4 & 5

1.Purpose

This safety manual provides information necessary to design, install, verify and maintain a Safety Instrumented Function (SIF) utilizing the Fisher DVC6200 SIS digital valve controller. The following document must be thoroughly reviewed and implemented as part of the safety lifecycle. This information is necessary for meeting the IEC 61508 or IEC 61511 functional safety standards.

WARNING

This instruction manual supplement is not intended to be used as a stand-alone document. It must be used in conjunction with the following manuals:

Fisher FIELDVUE DVC6200 Series Quick Start Guide (D103556X012)

Fisher FIELDVUE DVC6200 SIS Instruction Manual (D103557X012)

Failure to use this instruction manual supplement in conjunction with the above referenced manuals could result in personal injury or property damage. If you have any questions regarding these instructions or need assistance in obtaining any of these documents, contact your Emerson Process Management sale office.

www.Fisher.com

DVC6200 SIS Digital Valve Controller	Instruction Manual Supplement
September 2013	D103601X012

2.Description of the Device

The Fisher DVC6200 SIS digital valve controller is an instrument which delivers controlled pneumatic pressure to modulate a valve actuator in response to an electrical signal. An optional valve position monitor will either transmit a 4­20 mA signal in response to the actual valve travel or open and close a discrete limit switch based on a configurable trip point.

This safety manual applies to the DVC6200 SIS instrument with electronics hardware revision 2 (HW2) and firmware revision 4, 5, and 6 with the following product options.

						OPTION
MODEL	CONSTRUCTION	DETT	ETT	4-20 mA	24 VDC		Relay A	Relay B	Relay C	Position
										Monitor
DVC6200 SIS	Integral, Aluminum	√	√	√	√		√	√	√	√
DVC6200S SIS	Integral,	√	√	√	√		√	√	√	√
	Stainless Steel
DVC6205 SIS	Remote Mount,	√	√	√	√		√	√	√	√
DVC6215	Aluminum
APPLICATION
	DETT	√		√	√		√		√	√
	ETT		√	√			√	√	√	√
	4-20 mA	√	√	√			√	√	√	√
	24 VDC	√			√		√	√	√	√

Accessories

LCP100 Local Control Panel, HART Only

LC340 Line Conditioner, 24 VDC

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Instruction Manual Supplement	DVC6200 SIS Digital Valve Controller
D103601X012	September 2013

3.Terms, Abbreviations, and Acronyms

β	Beta factor for common cause effects of failure

DDDevice Description, an electronic data file that describes specific features and functions of a device to be used by host applications.

	DETT	De­energize to Trip
	DTM	Device driver that provides a unified structure for accessing device parameters, configuring and
		operating the devices, and diagnosing problems.
	DVC6200 SIS	Digital Valve Controller, product model designation for Safety Instrumented System applications
	ESD	Emergency Shut Down
	ETT	Energize to Trip
	FIT	Failure In Time (1x10­9 failures per hour)
	FMEDA	Failure Mode Effect and Diagnostic Analysis
	HART	Highway Addressable Remote Transducer, open protocol for digital communication
		superimposed over a direct current.
	HFT	Hardware Fault Tolerance
	λ	Failure rate. λDD: dangerous detected; λDU: dangerous undetected; λSD: safe detected; λSU: safe
		undetected.
		Line Conditioner; product model designation for a device that is inserted in the loop when the
	LC340	instrument (in Multidrop Mode) is powered with a low­impedance 24 V source, to enable HARTr
		communications.
	LCP100	Local Control Panel; product model designation for a device that can be connected to a DVC6200
		SIS instrument to enable manually­initiated functions.
	Low Demand	Mode of operation of a safety instrumented function where the demand interval is greater than
	Mode	twice the proof test interval.
	Multidrop	Operating mode of the DVC6200 SIS where the instrument controls the current drawn to enable
		it to be powered with 24 VDC.
	PFDAVG	Average Probability of Failure on Demand
	Point­to­Point	Operating mode of the DVC6200 SIS whereby the instrument is powered with 4­20 mA.
	PVST	Partial Valve Stroke Test
	Relay A	Pneumatic booster relay for double or single acting applications. Typical construction for double
		acting DETT applications.
	Relay B	Pneumatic booster relay for single acting reverse applications. Typical construction for single
		acting ETT applications.
	Relay C	Pneumatic booster relay for single acting direct applications. Typical construction for single
		acting DETT applications.
	Safety	Freedom from unacceptable risk of harm.
	Safety	Function of a device or combination of devices intended to be used within a Safety Instrumented
	Function	System to reduce the probability of a specific hazardous event to an acceptable level.
	SFF	Safe Failure Fraction
	SIF	Safety Instrumented Function
	SIL	Safety Integrity Level
	SIS	Safety Instrumented System
	Type A	“Non­Complex” element (using discrete components); for details see 7.4.4.1.2 of IEC 61508­2.
	Element
	Type B	“Complex” element (using complex components such as micro controllers or programmable
	Element	logic); for details see 7.4.4.1.3 of IEC 61508­2.

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DVC6200 SIS Digital Valve Controller	Instruction Manual Supplement
September 2013	D103601X012

4.Related Literature

D Fisher DVC6200 Series Quick Start Guide (D103556X012)

D Fisher DVC6200 SIS Instruction Manual (D103557X012)

D 62.1:DVC6200 SIS, Fisher DVC6200 SIS Product Bulletin (D103555X012)

D HART Field Device Specification for Fisher DVC6200 SIS (D103638X012)

D IEC 61508: 2010 Functional safety of electrical/electronic/programmable electronic safety­related systems

D ANSI/ISA 84.00.01­2004 (IEC 61511 Mod.) Functional Safety – Safety Instrumented Systems for the Process Industry Sector

D Exida FMEDA Report for Fisher DVC6200 SIS, Position Monitor Applications ­ Report No. EFC 12/02­027 R001

D Exida FMEDA Report for Fisher DVC6200 SIS, DETT Applications ­ Report No. EFC 12/02­027 R002

D Exida FMEDA Report for Fisher DVC6200 SIS, ETT Applications ­ Report No. EFC 12/02­027 R003

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Instruction Manual Supplement	DVC6200 SIS Digital Valve Controller
D103601X012	September 2013

5.General Requirements

WARNING

To ensure safe and proper functioning of equipment, users of this document must carefully read all instructions, warnings, and cautions in this safety manual and the Quick Start Guide.

D Refer to the Fisher DVC6200 SIS Quick Start Guide (part number D103556X012) for mounting and configuration.

D Tools needed:

D Flat Head Screwdriver, 3 mm Thin Blade (wiring terminations)

D Phillips Screwdriver

D 3/8” Hex Key (terminal box conduit plug)

D 6 mm Hex Key (module base screws)

D 5 mm Hex Key (terminal box screw)

D 2.5 mm Hex Key (I/P converter screws)

D 1.5 mm Hex Key (terminal box cover screw)

D Personnel performing maintenance and testing on the DVC6200 SIS shall be competent to do so.

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DVC6200 SIS Digital Valve Controller	Instruction Manual Supplement
September 2013	D103601X012

6.Safety Instrumented System Design

When using the DVC6200 SIS digital valve controller in a safety instrumented system, the following items must be reviewed and considered.

6.1SIL Capability

6.2Safety Function

6.3Failure Rates

6.4Application Limits

6.5Environmental Limits

6.6Application of the Switch Output for Diagnostic Annunciation

6.1.SIL Capability

D Systematic Integrity

SIL 3 Capable— the digital valve controller has met manufacturer design process requirements of IEC 61508 Safety Integrity Level 3.

D Random Integrity

D The digital valve controller is classified as a Type A device according to IEC 61508. The complete final element subsystem will need to be evaluated to determine the SFF. If the SFF of the subsystem is >90%, and the PFDavg < 10­3, the design can meet SIL 3 @ HFT=0.

D The position monitor is classified as a Type B device according to IEC 61508. The complete final element subsystem will need to be evaluated to determine the SFF. If the

SFF of the subsystem is >90%, and the PFDavg < 10­2, the design can meet SIL 2 @ HFT=0. If the SFF of the subsystem is between 60% and 90%, and the PFDavg < 10­1, the design can meet SIL 1 @ HFT=0.

6.2. Safety Function

D De­energize to Trip Application: The application of the digital valve controller is limited for SIS to low demand mode. Table 1 describes the normal and safe states of DVC6200 SIS for a DETT configuration. The digital valve controller may be operated with one of the following control signals:

D 0­24 VDC: Normal operation is with a 24 VDC signal applied to the digital valve controller. A shut­down command is issued by interrupting the loop or taking the voltage signal to 1 VDC or less.

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