Danfoss DST P92S User guide

Safety guide

Pressure transmitter SIL-2

DST P92S

ia.danfoss.com

Safety guide | DST P92S Pressure transmitter

Table of contents Contents

1.	Introduction .................................................................................................................................................	2
2.	General information..................................................................................................................................	3
2.1	Contact...........................................................................................................................................................	3
2.2	Used symbols and format........................................................................................................................	3
2.3	Reference.......................................................................................................................................................	3
2.4	Abbreviations...............................................................................................................................................	4
3.	Qualification test........................................................................................................................................	5
3.1	Compliance information.........................................................................................................................	5
3.2	Electromagnetic and electrical tests...................................................................................................	5
3.3	Environmental qualification...................................................................................................................	12
4.	System information...................................................................................................................................	13
4.1	Functional safety classification.............................................................................................................	13
4.2	Technical data.............................................................................................................................................	14
4.3	Technical drawings.....................................................................................................................................	16
4.4	Pin configurations......................................................................................................................................	17
4.5	Wiring diagram............................................................................................................................................	17
4.6	Safety functions..........................................................................................................................................	17
4.7	Diagnosis.......................................................................................................................................................	18
5.	Safety requirements..................................................................................................................................	18
5.1	Known issues...............................................................................................................................................	19
5.2	Instructions and constraints...................................................................................................................	19
5.3	Safe state.......................................................................................................................................................	19
5.4	System............................................................................................................................................................	20
5.5	Pressure..........................................................................................................................................................	21
5.6	Outputs..........................................................................................................................................................	22
5.7	Decommissioning and disposal............................................................................................................	24
5.8	Security..........................................................................................................................................................	24
6.	Transport and storage...............................................................................................................................	24
7.	Maintenance.................................................................................................................................................	24
8.	Mounting.......................................................................................................................................................	24
9.	Dismounting.................................................................................................................................................	25

1.	Introduction	This document includes system information and
		safety requirements for the pressure transmitter
		DST P92S, which have to be considered and
		fulfilled within the overall safety application.
		It shall be used as input for the:
		•	development of the overall safety
			application.
		•	overall installation and commissioning
			planning.
		•	overall safety validation planning.
		•	overall operation, maintenance and repair
			planning.

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Safety guide | DST P92S Pressure transmitter

2. General information 2.1 Contact

Danfoss A/S

Industrial Automation

DK-6430 Nordborg

Denmark

www.ia.danfoss.com

E-mail: technical [e-mail]

2.2 Used symbols and formats

REQIREMENT:

Requirement which shall be adhered to maintain safe system operations.

		RECOMMENDATION:
		Recommendation on how to handle
		certain aspects of requirements.
		WARNING:
		Warning of faults and errors during
		the application development.
		NOTE:
		A note provides additional and
		important information of the system
		behavior.
	2.3	Reference
	No.	Description
	/1/	International standard IEC 61508:2010
		Functional safety of electrical, electronic and programmable electronic safety-related systems
	/2/	Safety standard EN ISO 13849-1:2015
		Safety of machinery - Safety-related parts of control systems
	/3/	Siemens standard SN 29500: Failure rates of components
	/4/	EMC standard EN 61000-4-5:2005
		Electromagnetic Compatibility; testing and measurement techniques - Surge immunity test
	/5/	Safety standard ISO 25119:2010 / EN 16590:2014
		Tractors and machinery for agriculture and forestry - Safety-related parts of constrol system

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Safety guide | DST P92S Pressure transmitter

2.4 Abbreviations

Abbreviation	Description
AgPL	Agricultural Performance Level: Safety classification according to ISO 25119 / EN 16590
CCF	Common Cause Failure
CRC	Cyclic Redundancy Check
DC	Diagnostic Coverage
DFB	Digital Feedback
DTI	Diagnostic Test Interval
ECU	Electronic Control Unit
EEPROM	Electrically Erasable Programmable ROM
EMC	Electromagnetic Compatibility
FRT	Fault Reaction Time
FTT	Fault Tolerance Time
FS	Full Scale
GND	Ground
HW	Hardware
I/O	Input / Output
MDT	Mean Downtime
MTBF	Mean Time Between Failure
MTTFd	Mean Time To dangerous Failure
MTTR	Mean Time To Restoration
PFH	Probability of dangerous Failure per Hour
PL	Performance Level: Safety classification according to EN ISO 13849
PST	Process Safety Time
RAM	Random Access Memory
ROM	Read Only Memory
SFF	Safe Failure Fraction
SIL	Safety Integrity Level: Safety classification according to IEC 61508
SMM	Shadow Memory Module (if existing)
SN	Siemens Standard
SRL	Software Requirement Level
SW	Software
TBD	To be determined / to be defined
VCC	Positive voltage supply connection
VFB	Voltage Feedback
VSRC	Valid Safety Relevant Configuration

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Safety guide | DST P92S Pressure transmitter

3.

Qualification tests

3.1 Compliance information

Standard

Description

Parameter

Conformity

See EU Dclaration of conformity

Certification

Requirement in accordance

to the EC type-approval of

E 1

the Kraftfahrt-Bundesamt

KBA (Kraftfahrt-

(KBA) - Fedral Motor tTransport

According UN ECE Regulation No. 10

Bundesamt)

Authority:

All vehicle types with a 12 V

respectively 24 V - electrical

wiring and battery(-) at the

body

See also Functional Safety Classification on page 9

3.2 Electromagnetic and electrical tests

Electrical Safety

Current

Ratiometric

Standard

Test description

Test parameter

voltage

variant

variant

Danfoss reference

Supply voltage

Current variant:

x

x

Operation with Umax = 32V DC

and Umin = 9V DC for a duration of

60 min. each.

Ratiometric voltage variant:

Operation withg Umax = 5.5 V DC

and Umin = 4.5V DC for a duration

of 50 min. each

Danfoss reference

Starting profile

Overvoltage and hysteresis:

x

x

switch-on

UTest = Umax +3%

hysteresis

t = 5 min.

Undervoltage and hysteresis:

UStart = Unom

ΔU = 0.1V

Umin = Uswitch-off

t at Uswitch-on = 5 min.

Danfoss reference

Broken cable

Interruption of supply lines:

x

x

supply lines

Current variant:

Umax = 32V

Umin = 9V

Ratiometric voltage variant:

Umax = 5.5V

Umin = 4.5V

t = 60 sec.

Danfoss reference

Short circuits

Output signals to VCC or GND in

x

x

each case

t = 60 sec.

Danfoss reference

Polarity

Change supply polarity:

x

x

ISO 16750-2:

Protection

t = 5 min.

2012-11

Curent variant:

No current limitation of supply

necessary

Ratiometric voltage variant:

Current limiting of supply to 2A

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Safety guide | DST P92S Pressure transmitter

				Current	Ratiometric
	Standard	Test description	Test parameter		voltage
				variant
					variant
	Danfoss reference	Current	Supply current consumption	x	x
		consumption	without load:
			Current variant:
			Imax ≤ 50 mA
			Ratiometric voltage variant:
			Imax ≤ 20 mA
	Danfoss reference	Load test	48 hours at minimum	x	x
			temperature:
			12 hours without operating, 36
			hours with operating Umin and lmin
			48 hours at maximum
			temperature with operation Umax
			and Imax
	Danfoss reference	Insulation	Unpowered; 500V DC; 60	x	x
	ISO 16750-2:	Resistance	sec.; 50% rh; 35 °C; between
	2012-11		Connector pins and electric
			conductive housing without
			galvanic contact.
			Insulation resistance > 10 MΩ

CE Conformity (EMC)

Standard	Test Description	Test Parameter	Current	Ratiometric
			variant	voltage
				variant
DIN EN 61000-6-3		Conducted emission: 150 kHz to 30 MHz	x	x
DIN EN 61326	Emission
DIN 61326-2-3		Radiated emission: 30 MHz to 1 GHz
		Direct discharge:	x	x
		Contact discharge:
		±2 kV, ±4 kV
DIN EN 610000-4-2:2009-12	Electrostatic Discharge (ESD)
DIN EN 61326-1		Air discharge:
		±2 kV, ±4 kV, ±8 k
		10 discarges per test point
		Indirect discharge:	x	x
DIN EN 61000-4-2: 2009-12		(horizontal coupling-plate)
DIN EN 61326-1	Electrostatic Discharge (ESD)	Contact discharge: ±2 kV; ±4 kV
		15 discharges per test point
		Indirect discharge:	x	x
DIN EN 61000-4-2: 2009-12		(vertical coupling-plate)
DIN EN 61326-1	Electrostatic Discharge (ESD)	Contact discharge: ±2 kV; ±4 kV
		15 discharges per test point
		Immunity radio frequency:	x	x
DIN EN 61000-4-3: 2011-04		80 MHz to 1 GHz (10 V/m)
		1.4 GHz to 2.0 GHz (3 V/m)
DIN EN 61326-1	Immunity
		2.0 GHz to 2.7 GHz (1 V/m)
DIN EN 61326-2-3
		3 m, horizontal and vertical
		Test voltage:	x	x
		Supply lines: ± 2 kV
DIN EN 61000-4-4: 2013-04		Data lines: ±1 kV
DIN EN 61326-1	Burst	Duration: 5 min.
DIN EN 61326-2-3		Pulse form: 5/50 ns
		Frequency: 5 kHz
		Polarity: positive and negative

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Standard	Test Description	Test Parameter	Current		Ratiometric
			variant		voltage
					variant
		Symmetrical coupling (L-N):		x	-
		Supply lines: ±0.5 kV; ±1 kV
		Coupling: 2 Ω / 18 µF
DIN EN 61000-4-5: 2007-06		Unsymmetrical coupling (L-PE, N-PE, LN-PE):
DIN EN 61326-1	Surge	Supply lines: ±0.5 kV; ±1 kV, ±2 kV
DIN 61326-2-3		Signal lines: not required, cable length <30 m
		Coupling: 12 Ω / 9 µF
		Number of repeats: 5
DIN EN 610000-4-6: 2014		Conducted disturbances		x		x
DIN EN 61326-1	Immunity	0.15 mHz – 80 MHz, 3 V, 80% AM sine wave 1 kHz
DIN EN 61326-2-3
DIN EN 61000-4-8	Power Frequency	50 Hz / 60 Hz		x		x
DIN EN 61326-1		30 A/m
	Magnetic Fields
DIN EN 61326-2-3		60 sec. for each axis
DIN EN 61000-4-8		50 Hz / 60 Hz		x		x
DIN EN 61326-3-1	Power Frequency	30 A/m
DIN EN 61326-1	Magnetic Fields	60 sec. for each axis
DIN EN 61326-2-3
EMC (Automotive)
Standard	Test Description	Test Parameter		Current		Ratiometric
				variant		voltage
						variant
		Artificial network (AN):		x		x
		150 kHz to 108 MHz, 1 m, 120 kHz bandwidth class 3
CISPR 25/ECE R10	Emission	Antenna measurement (RE):
		160 kHz to 30 MHz, 1 m, 9 kHz bandwidth class 4
		30MHz to 1 GHz, 1 m, 120 kHz bandwidth class 3
		1 GHz to 2.5 GHz, 1 m, 120 kHz bandwidth class 5
		Absorber lined chamber:		x		x
ISO 11452-2: 2004-11	Immunity	200 MHz to 2 GHz, 200 V/m
		CW, AM (1 kHz/80%), PM (577 us duration, 217 Hz
		repetition rate)
ISO 11452-4: 2011-12	Immunity	BCI:		x		x
		20 MHz to 400 MHz, 200 mA, AM, (1 kHz, 80%)
ISO 7637-2: 2004-09	Emission	Transient emissions on supply cables (12 V system)		x		-
		Severity level:III: +75 V, -100 V
ISO 7637-2: 2004-09	Emission	Transient emissions on supply cables (24 V system)		x		-
		Severity level III: +150 V, -450 V
	Road vehicles, electrical	Pulse 1 (12 V system): -150 V, 5000 pulses		x		-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 1 (24 V system): -600 V, 5000 pulses		x		-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 2a (12 V system): +50 V, 5000 pulses		x		-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems

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Safety guide | DST P92S Pressure transmitter

Standard	Test Description	Test Parameter	Current	Ratiometric
			variant	voltage
				variant
	Road vehicles, electrical	Pulse 2a (24 V system): +50 V, 5000 pulses	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 2b (12 V system): +10 V, 10 pulses	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 2b (24 V system): +20 V, 10 pulses	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 3a (12 V system): -150 V, 1 hour	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 3a (24 V system): -200 V, 1 hour	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 3b (12V system):+100 V, 1 hour	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 3b (24 V system):+200 V, 1 hour	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 4 (12V system):-7 V, 1 pulse	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
	Road vehicles, electrical	Pulse 4 (24V system):-16 V, 1 pulse	x	-
	disturbance by conduction	Severity level: IV
ISO 7637-2: 2004-09	and coupling (data, signal), test
	level 4
	Test level 4 for 12 V and 24V
	systems
		Capacitive coupling (CCC)	x	x
		12 V system
		test level: IV (-110 V)
		Test ime: 10 min.
ISO 7637-3: 2007-07	Immunity	24 V system
		Test level: IV (-150 V)
		test time: 10 min.

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