SIMATICr,SIPARTr,SIRECr, SITRANSr
are registered trademarks of Siemens AG.
All other product or system names are (registered) trademarks of their respective owners and must be treated accordingly.
The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will
be liable for damages. All rights created by the granting of patents or registration of a design are reserved.
Technical data subject to change without notice
Contents
0Information for the Operator5.............................................
It contains important information and data which, when observed,
ensure full availability of the equipment and save service costs. This
simplifies handling of this control instrument considerably and provides
accurate measuring results.
You have purchased an instrument which can be installed in various
configurations:
- SIPART PS2 without Ex-protection in a metal-- or plastic housing.
- SIPART PS2 with EEx ia/ib-protection in a metal-- or plastic
housing.
- SIPART PS2 EEx d in a pressurized explosion proof metal housing
This manual takes each of these possibilities into consideration. Any
differences between the devices are indicated specially.
Scope of delivery, see chapter 7, page 105.
0
0.1General information
The product described in this manual left the factory in a perfectly safe
and tested condition. To maintain this condition and to achieve perfect
and reliable operation of this product, it must only be used in the way
described by the manufacturer. Successful and safe operation of this
equipment is dependent on proper handling, installation, operation and
maintenance.
This manual contains the information required for use as intended of
the product it describes. It is addressed to technically qualified
personnel specially trained or having relevant knowledge of instrumentation and control technology, hereafter called automation technology.
Familiarity with and proper technical observance of the safety notes
and warnings contained in this manual are essential for safe installation
and commissioning and for safety in operation and maintenance of the
product described. Only qualified personnel as defined in Chapter 0.3
has the necessary specialist knowledge to interpret the general safety
notes and warnings given in this document in specific cases and to
take the necessary action.
The documentation supplied with the instrument is listed in Chapter
0.5.
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5
Information for the Operator
This manual is not a permanent part of the scope of supply. For
reasons of clarity, it does not contain every detail about every version
of the product described and cannot take every eventuality in installation, operation, maintenance and use in systems into account. If you
require further information or if problems occur that have not been dealt
with in sufficient detail in this document, please request the required
information from your local Siemens office or the office responsible for
you.
Functionality, commissioning and operation are described in this
manual.
Please pay special attention to the Warning and Note texts. These are
separated from the remaining text by horizontal lines and specially
marked with symbols (see Chapter 0.2).
0.2Meaning of safety instructions and warnings
Safety information and warnings are intended to avert danger from the
life and health of users and maintenance personnel and to prevent
material damage. They are highlighted in this manual by the headings
defined here. They are also marked by warning symbols next to where
they appear. The headings used have the following meaning for the
purposes of this manual and the product labels:
DANGER
!
!
!
indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING
indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION
used with the safety alert symbol indicates a potentially hazardous
situation which, if not avoided, may result in minor or moderate injury.
CAUTION
used with the safety alert symbol indicates a potentially hazardous
situation which, if not avoided, may result in minor or moderate injury.
SIPART PS2 Manual
6
A5E00074631-01
Information for the Operator
NOTICE
NOTICE used without the safety alert symbol indicates a potential
situation which, if not avoided, may result in an undesireable result or
state.
.
NOTE
indicates a reference to a possible advantage when this
recommendation is followed.
0.3Qualified Personnel
The result of unqualified intervention in the instrument or
nonobservance of the warnings given in this manual or on product
labels can be severe personal injury and/or serious material damage.
Therefore only properly qualified personnel must make changes and
settings in the instrument.
For the purpose of the safety information in this manual and on the
product labels, qualified personnel are those who
S if they are configuration personnel, are familiar with the safety
concepts of automation technology
S if they are operating personnel, have been instructed in the handling
of automation equipment and know the content of this manual
relating to operation
S if they are commissioning and/or service personnel, are trained to
repair such automation equipment and authorized to energize,
de-energize, clear ground and tag circuits and equipment according to
safety engineering standards.
SIPART PS2 Manual
A5E00074631-01
S and instructed additionally in first aid
S and, in the case of ex-proof equipment, are trained, instructed or
authorized to perform work on electrical circuits of equipment
subject to explosion hazard.
7
Information for the Operator
WARNING
!
The instrument must only be installed and commissioned by qualified
personnel.
The instrument is designed for connection to functional and safety
extra low voltage.
Electrical safety depends only on the power supply equipment.
Pneumatic actuators exert considerable positioning forces. The safety
precautions of the actuator used must therefore be scrupulously
observed during installation and commissioning in order to prevent
injuries.
We explicitly draw your attention to the necessity of observing safety
regulations regarding operation in zones subject to explosion hazard, if
applicable.
0.4Use as intended
Use as intended for the purpose of this manual means that this product
must only be used for the applications described in the technical
description (see also Chapter 3 of this manual).
The product described in this manual has been developed, manufactured, tested and documented observing the relevant safety standards.
If the handling rules and safety information for configuration, installation, use as intended and maintenance are observed, there is normally
no danger with regard to material damage or for the health of
personnel. Extra low voltages that are connected must be fed in by
safe isolation.
0.5Technical Documentation
In addition to this manual, the following documentation is also supplied
with the instrument:
- Leaflet “Operation -- Concise Overview”
explains in visualized form the principle of operation and
parameterization and automatic commissioning.
- “Operating Instructions”
contains the information required for assembly, connection and
commissioning.
SIPART PS2 Manual
8
A5E00074631-01
Information for the Operator
The following list contains all the documents available for these
instruments:
TitleLanguageOrder No.
Operating Instructions
German/English
French/Italian/Spanish
A5E00074600
A5E00074601
ManualGerman
LeafletGerman
0.6Warranty Information
We should like to point out that the content of this manual is not part of
and does not modify a previous or current agreement, undertaking or
legal relationship. Siemens is bound solely by the contract of sale,
which also contains the complete and exclusive warranty. The
contractual warranty conditions are neither extended nor restricted by
this document.
The scope of delivery is listed on the dispatch papers accompanying
the delivery in accordance with the valid contract of sale.
When you open the packaging please observe the information on the
packaging. Check that the delivery is complete and undamaged. If
possible, compare the order number on the rating plates with the
ordering data.
For the scope of delivery please see Chapter 7.
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9
Information for the Operator
0.8Standards and Regulations
As far as possible, the harmonized European standards were used to
specify and manufacture this equipment. If harmonized European
standards have not been applied, the standards and regulations of the
Federal Republic of Germany apply (see also the Technical Data in
Chapter 6, page 101).
If this product is used outside the area of applicability of these
standards and regulations, please observe the standards and
regulations in force in the country where the product is operated.
10
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Introduction
Introduction
1.1General information about the positioner
The positioner is used to adjust and control pneumatic actuators. The
controller operates electropneumatically with compressed air as an
energy supply.
Purpose
For example, the positioner can be used to control valves as follows:
- with linear actuator (figure 1-1, page 13) or
- with rotary actuator VDI/VDE 3845 (figure 1-2, page 13)
Different mounting types are available for linear actuators:
- NAMUR or IEC 534
- integrated mounting to ARCA
1
Versions
Housing
- integrated mounting to SAMSON (non--explosion--proof version)
This means the positioner can be installed and operated on all common
actuator systems.
The positioner is available for the following actuators:
- double--acting and
- single--acting
For following applications:
- potentially explosive or
- not potentially explosive applications.
The electronics with display, position feedback and valve block are
integrated in the housing.
The housing is available in three versions:
- Plastic housing for single and double--acting actuators
- Metal housing for single--acting actuators
- Explosion proof metal housing for single and double--acting
actuators
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11
Introduction
Degree of
protection
Explosion
Protection
Options
Accessories
The device is designed with IP65/NEMA4x degree of protection.
The intrinsically safe version can be used in hazardous areas in zone 1
or zone 2.
The explosion proof version can be used in hazardous areas in zone 1
or zone 2.
The positioner can be expanded with various options modules (chapter
2.5, page 25). The following modules are available in all:
-module: Two--wire current output 4 to 20 mA for position feed-
- J
y
back
- Alarm module: 3 digital outputs and 1 digital input
- SIA module: one digital output for fault messages, two digital out-
puts for limit value alarms
- Manometer block: 2 or 3 manometers for single and double
action positioners
- Add--on flange (NAMUR) for safety valve block
- Add--on sets for linear and rotary actuator
Environmental
Protection
Only environmentally friendly materials have been used in the
construction of the positioner.
The technical manual is printed on chlorine--free bleached paper.
12
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A5E00074631-01
Introduction
1
2
3
1Actuator
2Positioner, single action in metal housing
3Lantern
4Manometer block, single action
5Valve
Figure 1-1Positioner mounted on linear actuator (single action)
Figure 1-4Explosion proof positioner mounted on rotary actuator (double action)
14
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DesignandFunctionalPrinciple
Design and Method of Operation
The following chapter describes the mechanical and electrical design,
the instrument components and method of operation of the positioner.
2.1Overview
Introduction
The electropneumatic positioner forms a control system in connection
with an actuator. The current position of the actuator is detected by a
servo potentiometer and fed back as actual value x. The setpoint and
actual value are output simultaneously on the display.
The setpoint w is formed by a current fed to the positioner which at the
same time serves to supply the positioner in two-wire operation. In 3 /
4-wire operation the supply comes from a 24 V voltage input.
The positioner operates as a predicative five--point switch by the output
variable ±Dy of which the integrated actuating valves are controlled with
pulse length modulation.
2
These actuating signals cause fluctuations in pressure in the actuator
chamber(s) and thus adjustment of the actuator until the control error is
zero.
Operation (manual) and configuration (structuring, initialization and parameterization) is effected by three keys and a display with the housing
cover removed.
The standard controller has one digital input (DI1). This can be configured individually and can be used for blocking the operating levels for
example.
With the J
as a two wire signal J
In addition the actuator can be monitored for two programmable limit
values which respond on exceeding or dropping below the stroke or
angle of rotation.
The limit value alarms are output by the alarm option module which can
monitor and report the function of the positioner and the actuator additionally through a fault message output. The value of the control difference dependent on the floating time is monitored in automatic mode.
The fault signal is always set when the control error cannot be leveled
after a certain time because for example the valve is blocked or the
mains pressure is insufficient. The three digital outputs are implemented as semiconductor outputs and are error self--reporting, i.e. the out-
-option module, the current actuator position can be output
y
=4to20mA.
y
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15
Design and Functional Principle
1
puts respond even when the power supply fails or the electronics are
defective.
The actuator can also be blocked or driven to its final positions depending on the configuration for example by an external event via a digital
input (DI2) on the alarm module.
If you require electrically independent limit value messages from the
standard controller, you will have to use the SIA module with the slot
initiators instead of the alarm module.
Communication with the controller is possible via the optional HART
interface.
Figure 2-1View of the positioner in normal version (cover open)
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16
A5E00074631-01
Design and Functional Principle
9
1
10
3
---++
10
1Input: Supply air7Transmission ratio selector
2Output: Actuating pressure Y1(only possible with positioner open)
3Display8Adjusting wheel slip clutch
4Output: Actuating pressure Y2
5Operating keys10Terminals options modules
6.1Restrictor Y112Safety catch
6.2Restrictor Y2
*)
in double-- acting actuators
*)
*)
2121
6.1
1382389
6.2
45
9Terminals standard controller
7
8
Figure 2-2View of the explosion proof version of the positioner
2.2.1 Motherboard
The motherboard contains all the electronic elements such as the CPU,
memory, A/D converter . It also contains the display and the operating
keys.
In addition, the terminal strips for connecting the options modules are
also on the motherboard.
2.2.2 Electrical Connections
The terminals of the standard controller, the Jy- and alarm-option module are arranged at the left--hand front edges and offset against each
other in staircase form.
A module cover protects the modules from being pulled out and prevents incorrect installation.
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17
Design and Functional Principle
2.2.3 Pneumatic Connections
The pneumatic connections are on the right hand side of the positioner
(figure 2-3 and figure 2-4).
1
2
3
4
5
1Actuating pressure Y1 in single-- and double-- acting actuators
2Feedback shaft
3Supply air P
4Actuating pressure Y2 in double--acting actuators
5Exhaust air output E with silencer on the bottom of the instrument
z
Figure 2-3Pneumatic connection in normal version
1
2
3
4
5
6
7
1Restrictor Y2 *)5Actuating pressure Y1
2Restrictor Y16Exhaust air output E
3Actuating pressure Y2 *)7Housing ventilation (2x)
4Supply air PZ
*)
in double-- acting actuators
Figure 2-4Pneumatic connection in explosion proof version
18
In addition, there are pneumatic connections on the back of the positioner for integrated installation in single--acting linear actuators.
- Actuating pressure Y1
- Exhaust air output E (not in explosion proof version)
In the ex--factory state, these connections are sealed by screws (see
figure 3-1, page 33, figure 3-3, page 34 and figure 3-4, page 35).
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Design and Functional Principle
The exhaust air output E can be provided for supplying dry instrument
air to the tapping chamber and spring chamber to prevent corrosion.
Figure 2-5, page 20 shows the pneumatic connection variants for the
different actuator types, the positioning action and the safety position
after power failure.
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19
Design and Functional Principle
Positioning
pressure
Connection
Y1
Y1
Y2
Y1
Y1
Y2
Closed
Closed
Actuator type
Open
Open
OpenClosed
OpenClosed
Safety position after power failure
electricalpneumatic
ClosedClosed
OpenOpen
Open
Last position
(before power
failure)
Closed
In rotary actuators the
direction of rotation
counterclockwise looking
onto the actuating shaft of
the valve is usually defined
as ”Open”.
Open
Closed
Y1
up
DownDown
down
Y1
up
down
UpUp
Y2
Y1
up
down
Up
Y1
Y2
up
down
Down
Figure 2-5Pneumatic connection positioning
Last position
(before power
failure)
updown
20
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Design and Functional Principle
2.2.4 Mounting Kit
The positioner can be mounted on almost all actuators with the appropriate mounting kit.
2.2.5 Purge air switching (not in the explosion proof version)
The purge air switch is accessible above the pneumatic terminal strip
with the housing open (figure 2-6). In the IN position the inside of the
housing is purged with very small amounts of clean, dry instrument air.
In the OUT position the purge air is fed directly to the outside air.
Figure 2-6Purge air switch on the valve block, view of the positioner onto pneumatic connection side
with cover open
2.2.6 Restrictors
In order to achieve floating times of > 0.5 s in small actuators, the air
rate can be reduced with the restrictors Y1 and Y2 (figure 2-7, in
explosion proof version, see figure 2-4, page 18). By turning to the right
the air rate is reduced up to shutting off. To set the restrictors it is
advisable to close them and then open them slowly (see initialization
RUN3).
Y1 Y2
Figure 2-7Restrictors
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21
Design and Functional Principle
2.3Method of Operation
The electropneumatic positioner SIPART PS2 forms a control circuit
with the pneumatic actuator in which the actual value x is the position
of the actuator bar in linear actuators or the position of the actuator
shaft in rotary actuators and the command variable w is the actuating
current of a controller or a manual control station of 4 to 20 mA.
The stroke or rotary movement of the actuator is transferred by the
appropriate mounting accessories, the feedback shaft and a play--free
switchable gearwheel to a high quality conductive plastic potentiometer
and to the analog input of the microcontroller .
This may correct the angle error of the stroke tap, compares the
potemtiometer voltage as actual value x with the setpoint w fed in at
the terminals 3 and 7 and calculates the manipulated variable
increments Δy. Depending on the size and direction of the control
error (x-w) the piezo--controlled supply air or exhaust air valve is
opened. The volume of the actuator integrates the positioning
increments to actuating pressure y open which moves the actuator bar
or actuator shaft approximately proportionally. These positioning
increments change the actuating pressure until the control error
becomes zero.
The pneumatic actuators are available in single and double action
versions. Only one pressure chamber is aerated or deaerated in the
single action version. The resulting pressure operates against a spring.
In the double action version, two pressure chambers are counteractive.
In this case the one volume is deaerated when the other volume is
aerated. See the block diagram figure 2-9, page 24.
The control algorithm is an adaptive predicative five--point switch (see
figure 2-8, page 23).
The valves are controlled with continuous contact at large control errors
(fast action zone). At medium control errors the valve is controlled by
pulse length modulated pulses (slow action zone).
No actuating pulses are output in the small control error zone (adaptive
dead zone). The dead zone adaptation and the continuous adaptation
of the minimum pulse lengths in automatic operation cause the best
possible control accuracy to be achieved at the lowest switching frequency. The start parameters are determined during the initialization
phase and stored in a non--volatile memory. These are basically the
real actuating path with the mechanical limit stops, the floating times,
the size of the dead zone etc.
In addition the number of fault messages, changes in direction and the
number of strokes are determined and stored every hour during
operation. These parameters can be read out and documented by the
communication programs such as PDM and AMS. Conclusions as to
the wear on the fitting can be drawn (diagnostic function) especially by
comparing the old value with the currently determined values.
22
Figure 2-9, page 24 shows the block diagrams for single-- and double-acting actuators with the linear actuator as an example.
SIPART PS2 Manual
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Design and Functional Principle
.
Figure 2-8Method of operation five--point switch
NOTE
The exhaust air valve is always open when there is no current.
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23
Design and Functional Principle
1
BE1
I
W+
I
W-
y
0
+
x
3 V
W
+U
_
W
x
0
6
BE2
7
+5 V
A
A
2
+24 V
D
D
HART
_
Micro-
controller
A1 A2
II
A1 A2
3
_
y
y
+
+
U
U
I
5
4
Supply ai r
Zuluft
p
Z
Exhaust a i r
Abluft
p
1
p
p
p
2
Abluft
Exhaust
air
1
2
stroke
9
p
2
p
1
stroke
8
p
1
1 Motherboard with microcontroller and input circuit
2 Control panel with LC-display and momentary action switch
3 Piezo-- valve unit, always built--in
4 Valve unit with double action positioner always built--in
5 Iy-module for positioner SIPART PS2
6 Alarm module for three alarm outputs and one digital input
7 SIA-module (Slot Initiator-Alarm-module)
8 Spring--loaded pneumatic actuator (single action)
9 Spring--loaded pneumatic actuator (double action)
Figure 2-9Block diagram of the electro--pneumatic positioner, functional diagram
.
NOTE
Alarm module (6) and SIA module (7) can only be used alternatively.
24
SIPART PS2 Manual
A5E00074631-01
Design and Functional Principle
2.4State as supplied
There are no mechanical mounting accessories on the controller in the
state as supplied These must be ordered and installed according to the
“operating instructions” depending on the application.
The respective connections for single or double action versions are prepared at the factory as ordered.
The pneumatic connections on the rear are sealed.
2.5Options modules
2.5.1 Options modules in normal and intrinsically safe versions
The options modules are protected and mechanically fixed by a module
cover ((1), see figure 2-10, page 27 and figure 2-11, page 29).
.
Opening the
instrument
.
NOTE
The housing must be opened to install the options modules. The
degree of protection IP65 is not guaranteed as long as the positioner is
open.
To open the positioner, the four screws of the housing cover must be
loosened with a Phillips screwdriver.
Disconnect or isolate the power supply cables.
Remove the module cover (1). To do this, the two screws (1.1) must be
removed with a screwdriver .
NOTE
To prevent premature wearing of the fixture by the self--tapping screws
(1.1), the following method of mounting the module cover (1) has
proven effective.
1. Turn the screws counterclockwise until you feel them snap into the
thread
2. Tighten both screws carefully in clockwise direction
Jy-moduleInsert the Jy-module (3) in bottom pcb rails of the container, establish
the electrical connection with the enclosed ribbon cable (6).
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25
Design and Functional Principle
Alarm moduleInsert the alarm module (4) in the top pcb rails of the container,
establish the electrical connection with the enclosed ribbon cable (5).
SIA-module(Slot Initiator Alarm module) Proceed as follows for installation:
1.Remove all the electrical connections from the basic electronics
(2).
2.Loosen the two fixing screws (2.1) of the basic electronics.
3.Snap out the basic electronic board by carefully bending the four
holders.
4.Insert the SIA-module (7) from above up to the top pcb rail of the
container.
5.Push the SIA module in the pcb rail of the container about 3 mm to
the right.
6.Screw the special screw (7.1) through the SIA module into the axle
of the positioner, please observe the following note:
The pins pressed into the actuating disc bearing must be adjusted
to just before touching with the special screw. The actuating disc
bearing and the special screw must then be turned simultaneously
so that the pins slot into the special screw.
7.Place the insulating cover (10) over the SIA module underneath
the surface of the basic electronics board at the container wall on
one side. The recesses in the insulating cover must slot into the
corresponding lugs on the container wall. Place the insulating
cover on the SIA module by carefully bending the container walls.
8.Snap the basic electronics board into the four holders and screw it
tight again with the two fixing screws (2.1).
9.Make all the electrical connections between the motherboard and
the options with the ribbon cables provided and between the motherboard and potentiometers with the potentiometer cable.
10. Fix the enclosed module cover instead of the standard version with
the two screws.
1 1. Select the plates which already exist on the standard version of the
module cover from the set of plates enclosed. Stick the selected
plates according to the standard version to the mounted module
cover.
12. Make the electrical connections.
Setting the two limit values:
13. Drive the actuator to the first desired mechanical position.
26
14. Adjust the top actuating disc (for output terminals 41--42) by hand
until the output level changes.
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A5E00074631-01
Design and Functional Principle
15. Drive the actuator to the second desired mechanical position.
16. Adjust the bottom actuating disc (for output terminals 51--52) by
hand until the output level changes.
.
NOTE
If you turn the actuating disc beyond the switching point up to the next
switching point, you can set a high-low or a low-high change.
-module with ribbon cable (6)9Transmission ratio selector
y
4Alarm module with ribbon cable (5)10Insulating cover
5Ribbon cable for alarm module11Actuating disk bearings
6Ribbon cable for Jy-module
Figure 2-10Installation of Options Modules
7.1
8
9
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27
Design and Functional Principle
2.5.2 Options modules in explosion proof version
The options modules are protected and mechanically fixed by a module
cover ((1), see figure 2-11, page 29).
.
!
Open the positioner
NOTE
The housing must be opened to install the options modules. The
degree of protection IP65/NEMA4x is not guaranteed as long as the
positioner is open.
WARNING
The explosion proof positioner may only be supplied with electrical
power in areas in which the atmosphere may be potentially explosive
when the housing is closed.
The feed--though openings for the electronic connections must be
sealed with EEX-d certified cable glands or EEx-d certified plugs or an
ignition lock must be mounted at a maximum distance of 46 cm
(18 inches) when using the “conduit”--system.
Disconnect or isolate the power supply cables first.
To open the positioner, the safety catch (12) must be opened and the
screw--on cover unscrewed.
.
After loosening the four fixing screws (13.1) the complete rack (13) can
be removed. The actuator may have to be turned so that the clutch can
be easily disengaged.
Remove the module cover (1). To do this, the two screws (1.1) must be
removed with a screwdriver .
NOTE
To prevent premature wearing of the fixture by the self--tapping screw
(1.1) next to the display, the following method of mounting the module
cover (1) has proven effective.
1. Turn the screws counterclockwise until you feel them snap into the
thread.
2. Tighten both screws carefully in clockwise direction.
28
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A5E00074631-01
1.1
Design and Functional Principle
10
13.1
12
8
7
13.1
56
13
1
1.1
2
4
3
11
1Module cover7Transmission ratio selector
1.1Fixing screws8Adjusting wheel for slipping clutc
2PA module10Housing
3J
4Alarm module with ribbon cable12Safety catch
5Ribbon cable for alarm module13Rack
6Ribbon cable for J
module with ribbon cable11Screw-- on cover
y
module13.1 Fixing screws
y
Figure 2-11Installation of the options modules in the explosion proof version
2.5.3 HART-function
Function
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A5E00074631-01
The positioner is also available with built--in HART-functions. The
HART protocol allows you to communicate with your instrument with a
handheld communicatorR, PC or programming unit. This enables you
to configure your instrument comfortably , save configurations, call diagnostic data, display online measured values and much more. Communication takes place as frequency modulation over the existing signal
lines for the command variable from 4 to 20 mA.
29
Design and Functional Principle
The SPART PS2 is integrated in the following parameterization tools:
- Handheld communicatorR
- PDM (Process Device Manager)
- AMS (Asset Management System; update in preparation)
- Cornerstone
.
2.5.4 Alarm module
Function
NOTE
Operation on the positioner has priority over the settings via the HART
inetrface.
Communication is aborted by a power failure at the positioner.
The alarm module contains
- 3 digital outputs and
- 1 digital input
The digital outputs serve to output fault messages and alarms. The
configuration is described in chapter 4.4, page 79, with the parameters
44 to 54.
By an external signal applied at digital input (DI2) the actuator can be
blocked or driven to its limit positions for example depending on the
configuration. The configuration is described in chapter 4.4, page 79,
with the parameters 43.
30
The alarm module is available in two versions:
- explosion protected for connecting to switching amplifier DIN 19234
- non--explosion protected for connection to voltage sources with a
maximum 35 V
The semiconductor outputs of the alarm module report an alarm (signal
state Low) by switching off with high resistance. They are conductive in
the High state (without alarm). The dynamic control makes them error
self--reporting.
The outputs are potentially isolated from the basic circuit and each
other.
The digital input is double.
- one potential isolated for voltage level
- one not potential isolated for floating contacts
These two inputs are designed as logic OR links.
SIPART PS2 Manual
A5E00074631-01
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