Post on 11-Mar-2015
Contents / Introduction
Contents Contents
Introduction
Applications
Type Designation
Multi-turn Actuators
Design Principle
2
3
4
5
6-7
Functions
Open-Close Duty
Regulating Duty
Limit Switching
Torque Switching
8
8
8
9
10
Control Equipment
Micro Switches
Reduction Gear Unit
Position Indicators
Intermediate Switch
Manual Operation
Top Bevel Gear Set
Space Heater
Motors
General
Data Sheets
Technical Data Open-Close Duty
Electrical Data Open-Close Duty
Technical Data Regulating Duty
Electrical Data Regulating Duty
Dimension Sheet, Norm
Dimension Sheet, Compact
Dimension Sheet, E-pac
Output Drives
Linear Thrust Unit
Terminal Plan (Norm)
Wiring Diagram (Integral Starter)
Legend - Integral Starter11
11
12
12
13
13
13
13
14-15
29
30-31
32-33
34
35
36
37
38
39
40
41
42
43
Actuators for Regulating Duty
Actuator Types
Auma Norm Actuators
Auma Integral Starter Actuators
Control Versions
Auma Compact
Auma e-pac
16-20
21
21
21
22
22
23
Interface
Valve Attachment
Output Drives
Electrical Connection
Actuator Gearbox Combination
24
24
24
25
26
Service Conditions
Enclosure Protection
Ambient Temperature
Explosion Proof
27
27
27
28
In the course of ever increasing demand forautomation in all sectors of industries, electricactuators for process control and regulationhave become more and more important. Formore than 30 years, Auma concentrates on design, development and manufacturing ofelectric actuators. During this period, Aumahas acquired a know-how in this field that canhardly be surpassed. Auma today is one of theleading manufacturers of electric actuators in
Auma India (Ltd.,) is now a subsidiary ofAuma Werner Riester Gmbh & Co. KG, Germany manufacturing electric actuatorsunder brand name . Auma (India) Ltd.,started its operations in the year 1985 with HQand sophisticated manufacturing base at
Introduction
the world.
Bangalore.
offices & service centers.
Sales support and after sales service are provided by network consisting of regional
2
Applications
Auma multi-turn actuators of the type range SAcan be used wherever the automation of thevalve is required. The adoption to therequirements of nearly every valve automationtask is possible. This is on account of :
Various combination possibilities withAuma Valve Gear boxes. Thereby the torquerange can be further extended and / or themultiturn actuator can be converted into
A large variety of versions, whether for open or closed loop control, explosion proofapplications, a suitable version is available.
part turn, lever or linear actuator.
An extermely wide torque range
Energy Power Plants Air Pollution Control District Heating Pipelines
Others Air Conditioning Steel Mills Ship Building Cement Plants Food Industry
Chemical Industry Petro-chemical Chemical Pharmaceutical
Water / Waste Water Water Works Water Pipelines Sewage Treatment Pump Stations Locks / Dams
3
Type Designation
AumaNorm Regulating Duty
OPEN-CLOSE Duty
Regulating Duty
OPEN-CLOSE Duty
Regulating Duty
OPEN-CLOSE Duty
Regulating Duty
OPEN-CLOSE Duty
Model : SA
Model : SAR
OPEN-CLOSE Duty
Regulating Duty
Model :SA Compact
Model : SAR Compact
Model :SA e-pac
Model : SAR e-pac
Model :SAEx
Model : SAREx
Model :SACEx
Model : SARCEx
AumaIntegral Starter
ActuatorTypes
AumaCompact
Aumae-pac
Expl. ProofNorm
Expl. ProofCompact
AumaFlame Proof /
Explosion Proof
Type Designation : Example
Model
Torque Rating Output Drive
Output Speed in RPM
SA A12 22
Torque Ratings 3 m kg6 m kg
12 m kg15 m kg25 m kg30 m kg50 m kg60 m kg
100 m kg
Output Speed 4 rpm5.6 rpm
8 rpm11 rpm16 rpm22 rpm32 rpm45 rpm63 rpm90 rpm
125 rpm180 rpm
Output Drives A Stem nutB Plug SleeveC Dog CouplingD Stub ShaftE Bore with Keyway
4
Multi-turn Actuators
Multi-turn Actuator SA3 - SA100Torque range 3 m kg to 100 m kgOutput speed 4 rpm to 180 rpm
Multi-turn ActuatorIntegral Starter - Compact
Multi-turn ActuatorIntegral Starter - e pac
Multi-turn ActuatorFlame Proof / Explosion Proof
5
Design Principle
6
Switch Compartment
Valve Attachment
Reduction Gearing
TerminalCompartment
Manual Operation
Motor
Change Gears
A well proved principle of worm gearing isused to reduce the motor speed to requiredoutput speed of actuator. Self-locking featureis achieved by worm gearing upto 90 outputrpm. Worm shaft and output shaft with wormwheel run in ample sized bearings. The slidingworm is positioned between two sets of springs on worm shaft. The worm movesaxially in relation to thrust which is themeasure for torque. Via lever & gears the
Depending upon type of valve, the actuatormust be switched off at end positions by limitswitch or torque switch. For this purpose,independent limit switching or torqueswitching devices are provided in the switchcompartment. The switching devices are easily
Motor Terminal Compartment
Change Gears Valve Attachment
Reduction Gearing Manual Operation
Switch Compartment
Design Principle
Especially high starting torque is frequentlyrequired to unseat valves from end positions.The motors developed by Auma fulfil thisbasic requirement.
accessible for any setting at site.
All electrical connections are terminated inside the terminal compartment. Screw type terminals are provided for easy connections. Multi-pin plug-socket connector can be provided for ease of connections & maintenance.
site.
Auma actuators are driven by specialcombination of gears which are outside thegrease filled housing & require no lubrication.If required, output speed can be easily alteredby changing the gear pair and / or motor at
for adaption to various types of valves.
The mounting flange is according to ISO 5210 /DIN 3210. Various output drives are available
torque is transmitted to control unit.
disengaged.
For commissioning or in an emergency, actuatorcan be operated with hand wheel. When startingthe motor, the manual drive is automatically
7
Pemissible number of starts-stops depends uponactuator size & speed. The details are available
Open Close Duty
Regulating / Modulating Duty
Short Time and Intermittent Duty IS 12824
Functions
Typical Characteristics ofOPEN-CLOSE DUTY
Typical Characteristics ofRegulating / Modulating Duty
Short time Duty S2 Intermittent Duty S4
S2-15min.
The characteristic feature of this actuator isopen loop. The normal valve positions inOPEN-CLOSE Duty are end positions OPENand CLOSED. After receiving command, theactuator operates the valve to one of the endpositions or if necessary to a presetintermediate position. The valves are operatedrelatively seldom, the time intervals can span
Auma multi-turn actuators type SA for openclose service are rated for short time duty
between a few minutes to several months.
in Data Sheets.
Operation at constant load during a giventime, less than that required to reach thermalequilibrium, followed by a rest and de-energized period of sufficient duration to re-
The duration of short time is limited to 15, 30or 60 min.
oestablish machine temperatures within 2 C.
The characteristic feature of this actuator isclosed loop in which input command signal toactuator is directly influenced by the flowthrough the valve. Regulating / Modulatingduty actuator SAR operates between two setbands between open-close positions depending upon actual valve position and feedback signal. The motors of these actuators are rated for intermittent duty S4-25%. The mechanical components and motor are designed to withstand a large number of operations required for
modulating applications.
8
A sequence of identical duty cycles, each cycleincluding a significant period of starting, a periodof operation at constant load and a rest and de-energized period. These periods being too short to attain thermal equilibrium during one duty
The relative on time at S4-25% is limited to 25% of the cycle time.
cycle.
The accuracy of setting is 1/10 of a turn ofactuator output shaft. For four train countergear, 4 limit switches of 1 NO + 1 NC or 2 NO
Limit Switching
Two Train Counter Gear
Four Train Counter Gear
Functions
For Two train counter gear, two limit switches,one for each direction of travel having 1 NO+ 1 NC or 2 NO + 2 NC contacts are provided.The number of spindle turns can be set
between 1 and 480 or 1 and 4800.
Two Train Counter Gear
Four Train Counter Gear
Examples of such application are :
+ 2 NC contacts are provided.
The limit switching enables to switch off theactuator when reaching defined valveposition, usually end positions. The valvetravel is measured by mechanical counter gearmechanism which when reaching the set
switching points operate the electrical limitswitches by cams. The setting accuracy is 1/10 of
In limit switching, two train counter gear and
a turn of actuator output shaft.
four train counter gear versions are available :
If limit switching is required at two endpositions only, two train counter gear is used.However, if two additional intermediateswitching positions are desired, Four TrainCounter Gear is required. This limit switching has 4 counter gears and 4 micro switches. Twocounter gears are used to switch off at endpositions as in Two Train Counter Gear. Theother two are available for setting any desiredintermediate positions between end positions.After cam actuation, the switches remainactuated till reaching end of valve travel.
To stop at intermediate positionSequence control, that is to startanother equipment like pump or bypass valve actuator after certain travelof valve.
9
Torque Switching
Running Indication
Torque Switching
Functions
directions.
can be used as running indicator.
The torque switching enables to switch off theactuator when pre-determined torque isreached instead of a defined position. Thetorque switching works on principle of sliding
Axial displacement of worm proportional tothrust is transmitted to torque switches.Torque switches operate in closing & openingdirections. The required tripping torque can beeasily set on the graduated dial. If limit switchcut off is selected prior to torque switch, then
For tight seating of certain valves, the actuatormust be operated to end position CLOSEDwith defined force. Such operation can becarried out by torque seating. Limit seating is
worm.
torque switch serves as overload protection.
commonly used in the end position OPEN.
When torque seating is used at end position,limit switches can be used for signalization.Therefore actuator controls can differentiatewhether actuator was switched off by torqueswitch or by limit switch. Micro switches oftorque switching are provided with 1 NO + 1 NCor 2 NO + 2 NC contacts for both open & close
Blinker switch is provided in the actuator and
10
Micro Switches
Single and Tandem Micro Switches
Micro Switch Ratings
Limit and Torque Switches are available insingle or tandem versions.
Control Equipment
Limit switches are tripped when an end positionis reached and torque switches are tripped when
The micro switches are sealed to enclosureprotection class IP66, as per IS 13947. The microswitches have double break change over potential free contacts. The circuit is interruptedsimultaneously at two points. The basic versionsof the switch contacts are of silver. For low current ratings, micro switches with gold plated
the set tripping torque is exceeded.
contacts are available.
Type of Switch
Blinker
DC inductive
DC resistive
Limit andTorque
Type of Current
Rating in Amp at Approx. Electricalcontact rating
500,000 cycles at250 V AC, 5A
50,000 cycles at250 V DC, 0.1A
50,000 cycles at250 V DC, 0.25A
30 V
8
5
7
7
1
1
6
0.2
0.5
5
0.1
0.25
4
75 V 125 V 250 V
AC, cos O = 0.8Inductive
AC, cos O = 0.8Inductive
With the help of micro switches, mechanicalparameters such as travel & torque areconverted into electrical signals for actuatorcontrol. There are four switches in the basicversion :
positions OPEN and CLOSE
directions OPEN and CLOSE.One torque switch each for the
One limit switch each for the end
Limit or Torque Switches in tandem versionhave additional switching contacts. Thesecontacts can be wired for following applications :
Single Micro Switch
Tandem Micro Switch
11
Switching another circuit also with
Safety function, to operate with single
Multiplying the available contacts,
different voltage & current
switch
example for signalization.
points of tandem switches.
For such applications, a relay is recommendedsince there may be small differences in tripping
Actual position display can be provided bydigital remote position indicator, which
The position of the valve is indicatedcontinuously by adjustable discs havingsymbols for OPEN and CLOSE. The discs canbe seen through an indicator glass on switchcompartment cover. The open-close discs canbe set to coincide with limit switching. Themechanical position indicator requires
The position of the valve can be transmitted asa continuous signal for remote indication. Apotentiometer mounted on RGU is used forthis purpose. A power supply unit providesnecessary voltage to the potentiometer. The
opotentiometer rotates through 270 for one fullstroke of valve & output signal frompotentiometer is proportional to valve travel.Thus the actual position of the valve can be
Reduction Gear Unit
Mechanical Position Indicator
Remote Position Indicator
Digital Remote Position Indicator
Position Indicators
Control Equipment
at site, variable ratio RGU is available whichallows simple modification at site dependingupon number of turns of output shaft for fullstroke of valve.
Reduction Gear Unit (RGU)
Mechanical Position Indicator
reduction gear unit for operation.
Remote Position Indicator
Potentiometer
PositionMeter
PowerSupply Unit
Std: 220 ohms, 3W, Linearity + 3%Optional : 100, 560, 1000 ohms,3W, Linearity + 3%Precision : 200, 500, 1000 ohms,1W, Linearity + 0.5%
PS01, input 220V, 50Hz, output24V DC
0 - 100% in various sizes
Technical Data
A reduction gear unit (RGU) in the actuator isused for mechanical position indication,remote position indication & for operation ofintermediate switches. The output shaft of theactuator drives final output shaft of RGUthrough a series of reduction gears and final
oshaft turns by approximately 270 whileactuator output shaft performs full number of turns as set on two train or four train countergear unit. The reduction gear ratio needed foreach particular case is fitted at works if theratio is known. For this purpose fixed RGUis supplied. If the ratio needs to be altered
read off continuously on position meter calibrated & mounted on control panel.
displays open position in percentage.
12
Intermediate Switches
Manual Operation
Top Bevel Gear Set
Space Heater
Control Equipment
Intermediate Switches
Top Bevel Gear Set
Volts, AC
Resistanceohms
RatingWatts
230
5K
10 20 10 20
2.7K 1.2K 0.6K
230 110 110
Technical Data
With this limit switching, additional switchingpoints can be set for each direction of rotation.The switching can be set between 25 and 75%of valve travel in each direction. The switchsub assembly consisting of 2 or 4 cam switchesis mounted on output shaft of RGU. Eachmicro switch has 1 NO + 1 NC contact.
For commissioning or in an emergency whenthere is no power supply, actuator can beoperated by hand wheel. The manual drive isengaged by means of a lever. When motorstarts running, the manual drive getsdisengaged immediately & hand wheel does
In manual operation, hammer blow can beeffected with hand wheel. The hammer blowmakes it possible to open a jammed or rarelyoperated valve.
not rotate during power operation.
Manual effort on hand wheel can be furtherreduced by using a side mounted hand wheelinstead of standard hand wheel. Reduction
SA3 / 6 / 12 / 15SA25 / 30 / 50 / 60SA 100
2 : 13 : 14 : 1
Instead of hand wheel, a chain pulley can beprovided for actuators mounted in inaccessiblezones.
ratios available are
Condensation in the actuator is possible due towide fluctuation of the ambient temperature.The heater integrated in the control unitprevents the water condensation. The heater israted for continuous duty. This may becontinuously energized or when the actuatoris not operating.
13
Motors
Control Equipment
Single Phase AC Motors
DC Motors
AC Motors with Other Voltages andFrequency
Technical Data
3 ph AC Motor 1 ph AC Motor DC Motor
50/60 Hz : 220 V, 380 V400 V, 415 V440 V, 460 V480 V, 500 V550 V
Voltages
Permissible Variationin Voltage
Mounting C Type Flange, B14, IS 2223
+ 10% + 10% + 10%
Enclosure Protection IP 67 or IP 68 after mounting
Type of Cooling Surface Cooled
Insulation Classo
F Class, IS 325 (max. temp. rise 140 C)
Starting Direct on line
Type of Duty S2-15 min. or S4-25 % IS 12824
Direction of Rotation Clockwise and anticlockwise
Motor Protection 3 thermo switches 2 thermo switches 4 thermo switches
50/60 Hz :
220 V - 240 V110 V - 220 V
220 V110 V 48 V24 V
Auma actuators can be supplied with single phase AC motor. The required capacitor is fitted in the terminal compartment cover.
220 V DC supply.
14
As a standard, Auma multi turn actuators areequipped with 3 phase induction motors.Auma motors are class F insulated and
The motors are used for short time duty (S2-15min or S4-25% as per IS 12824) and provideapproximately three times rated torque forshort duration. The size of the motor is smallercompared to continuous duty motor S1 ofsame output power. This results in reducedinertia of the rotor and therefore lessovershoot after switching off of motor. Aumamotors are designed for enclosure protectionclass IP 68 when mounted on the actuator. Allmotor cables are brought to terminal compartment cover from inside of the actuator
owithstand winding temperature upto 140 C.
thus avoiding terminal box.
Three phase induction motors are available inwide range of operating voltages from 220 V to560 V and operating frequency of 50 or 60 Hz.
Auma actuators are also available with DCmotors. These motors operate on 24 V, 110 V or
Motor Protection
Output Speeds
Self Locking
Control Equipment
Motor winding may get overheated if theactuator is run beyond rated duty or if therotor is stalled for considerably longer time ori f too h igh ambient temperature i sencountered. In order to protect the motoragainst over heating, thermo switches areembedded in the windings of three phase,single phase AC motors and DC motors. When integrated into the control circuits, they will protect the motor against damage due to
The thermo switches interrupt the controlcircuit as soon as winding temperature of
o140 C is exceeded. After cooling down to a
otemperature of approx. 110 C, the actuator canbe switched on once again. PTC thermistors
excessive winding temperature.
can also be provided for motor protection.
With large range of available output speeds,almost every required operating time can be
The actuator output speed is determined bythe motor speed, change gears and reduction
The output speeds are available from 4 - 180
During trial run, if found necessary, theoutput speed can be easily changed by
rpm in geometric progression of 1: 1.4.
gear ratio of worm / worm wheel.
achieved with Auma actuators.
Auma multi turn actuators SA/SAR3 toSA/SAR100 are self locking (see note below)with exception of output speeds 125 & 180rpm. Actuators with 125 & 180 rpm are havingdouble start worm drive. After torque switch istripped, the sliding worm may move back toinitial position by the action of torquemeasuring springs. This allows torque switchto be released. If control system providescontinuous signal, this results in hunting ofmotor. This can be avoided by the use ofauxiliary relay.
Note : The motor protection device must beintegrated into the controls, otherwise warrantyfor motor is not valid.
Note on Self Locking :
Self-locking gearing does not ensure safe stopping after an operation. If this is required, separate locking arrangement must be provided.
Technical Data
AC Voltage
oTripping Temp 140 C
oReset Temp 90 - 110 C
Switch Rating
2.5 A
1.6 A250 V AC
Cos O = 0.6
250 V ACCos O = 1
For higher velocities it is recommended to usespring loaded stem nut type AF (special design).
exchanging the change wheels and or motor atsite. The grease filled housing need not beopened for this purpose. The torque switchsetting & limit switch setting remains the same.For actuators with output drive A (Stem nut),max. permissible stem velocity must be
- -
for gate valves max. 500 mm/minfor globe valves max. 250 mm/min
observed:
15
Description of Regulating Duty
Principle of Operation
Actuators for Regulating Duty
Auma actuators of type SAR are suitable forRegulating duty / Modulating duty. SARactuator operates between two set bands inclosed loop and the motor is started, stopped& reversed at short intervals to correct thedeviation from the set value. SAR actuatorsdiffer from SA actuators in several respects :
SAR
MSAR
MUSAR
Regulating duty actuator
Sensor for actuator, i.e.position transmitter at actuator(potentiometer or inductiveLVDT)
Signal converter for SAR i.e.Electronic position transducer(RWG 1001/RWG 2002) orinductive position transmitter(IWG 1002/ IWG 1003).
CU01
V
M
MU
SE
W
XR
YR
:
:
:
:
:
:
:
:
Electronic positioner
Regulating valve
Sensor for regulating valve
Signal converter for sensor
Setting nominal value
Reference input
Input value at controller
Output value at electronic
:
:
:
positioner
Torque for regulating duty should not exceed
Max. torque of actuator can be used for
For reversing service, duration of impulse
Electronic position transducer or precisionpotentiometer should be used for remote
The motor should be short time duty
The SAR actuator basically consists of control units as explained in following
Output speed of actuator max. 45 rpm.
1200 cycles / hour with motor power upto0.55 kW & 600 cycles / hour with motor
Max. No. of starts-
--
-
-
-
-
power above 0.55 kW.
50% of max. torque of actuator.
seating & unseating of the valve.
should be minimum of 50 ms.
position indication.
class S4 - 25%.
diagram.
- 4 pole motors are used to reduce overshoot- Worm with high quality finish on flanks for better efficiency
Disc springs on worm shaft are precompressed to reduce dead band when
While selecting Auma actuators for regulatingduty applications, following points should be
reversing.
-
noted :
16
Actuators for Regulating Duty
This device is a signal converter for thetransformation of resistance value intoproportionate current signal. It can also be placed in the actuator where the position determined by the potentiometer is converted
Electronic position transducer RWG 1001
Description of Electronic Units
A potentiometer is used as sensor for actuator.Single turn wire wound potentiometer with4.7 k ohms with linearity of + 0.5 % is availablefor this purpose. It is available in single or
Sensor for Actuator
tandem version.
RWG 1001
Technical Data
Resistance 4.7 k ohms + 0.5 %
Power ratingo
3 Watt at 40 C
Angle of rotationo o
275 + 5
+ 0.5%Linearity
Technical Data - RWG 1001
Configuration 3 Wire
from 50 to 100%
Max. 0.2%
o0.2% 10 C
0.05%
24V DCmin. 18, max. 33V0-20 mA(4-20 mA)
+ 25%
Supply Voltage
Displacement of endposition, max.
Influence of supplyvoltage variation
Linearity not consideringpotentiometer
150 k ohmsInput resistance
Temp. drift
Displacement of zeroposition, max.
Output Current
Technical Data - RWG 2002
Configuration 2 Wire
from 60 to 100%
Max. 0.15%
< 1%
150 k ohms
24V DCmin. 18, max. 33V
4-20 mA
+ 25%
Supply Voltage
Displacement of endposition, max.
Influence of supplyvoltage variation
Linearity not consideringpotentiometer
Input resistance
Displacement of zeroposition, max.
Output Current
This is basically same as RWG 1001, howeverwith 2 wire system. The linearity is less than 1%.
As position transmitter, preferably apotentiometer of 4.7 k ohm should be used sothat the reference voltage source is not overloaded. This device requires 24V DC powersupply regulated within + 15%. Auma powersupply unit PS01 is recommended for thispurpose. RWG 1001 is a 3 wire system and is
Electronic position transducer RWG 2002
RWG 2002
having linearity of 0.05 %.
17
into 4-20 mA current signal.
Actuators for Regulating Duty
Dual Output Position Transmitter RWG 2002 DG :
Description of Electronic Units
IWG 1002
Technical Data - RWG 2002 DG
< 0.2%
< 1%
o o- 20 C to + 80 C
100 mA
+ 50%
+ 25%
24V DC+ 10% regulated
0/4-20 mA0/4-20 mA
Supply Voltage
Change in Output due toInput Supply Variation
Linearity Error for bothOutputs
Operating TemperatureRange
Current DrawnAdjustability of Span
Adjustability of Zero
Output 1 (Isolated)Output 2 (Isolated)
Technical Data - IWG 1002
Configuration 2 Wire
60 to 100%
o0.4% / 10 C
600 ohms
24V DC+ 15% regulated
4-20 mA
+ 25%
Supply Voltage
Displacement of endposition, max.
Temp. drift
< 0.3%Linearity (notconsidering LVDT)
Resistance max.
Displacement of zeroposition, max.
Output Current
It is a signal converter device for the transformation of resistance value into proportionate galvanically isolated two current outputs. This device requires 24 V DC power supply regulated within + 10%. Auma power supply unit PS01 is recommended for this purpose.
Inductive Position Transmitter IWG 1002
When using Auma actuators for regulating dutywith demand of high accuracy, an inductive position transmitter can be fitted to give precise read out of position.
The output signal is used as feed back toelectronic positioner or for position indicator.The system consists of two parts, a linearvariable differential transformer (LVDT) andan electronic unit. The smallest change of magnetic core in the measuring coil is transformed into proportional signal. The transmitter has no moving contacts. This device requires 24 V DC power supply regulated within + 15%. Auma power supplyunit PS01 is recommended for this purpose.
The linearity of the unit is less than 0.3%.
18
Actuators for Regulating Duty
Description of Electronic Units
Technical Data - IWG 1003
o0.4% / 10 C
60 to 100%
0 / 4-20 mA
600 ohms
+ 25%
3 WireConfiguration
Temp. drift
< 0.3%Linearity (notconsidering LVDT)
Output Current
Resistance max.
Displacement of zeroposition, max.
Displacement of endposition, max.
24V DC+ 15% regulated
Supply Voltage
Electronic Positioner CU01
Inductive position transmitter IWG 1003
IWG 1003 is similar to IWG 1002 however with3 wire system.
IWG 1003
CU 01
The electronic positioner CU01 is designed as a three level positioner for regulating of actuator.By comparing two input signals (reference signal W & regulating signal X), the positioner determines the difference. In case this exceeds a certain value, the actuator is switched on by relays. The direction of rotation (opening or
19
closing) depends upon the plus or minus sign of the deviation. Thus the regulating signal generated by potentiometer or LVDT changes & when the regulating signal & reference signal become equal, the actuator stops as long as no new correction is required.
Technical Data
Input WE1 0-20 mA (4-20 mA)0-20 mA (4-20 mA)or 0-Uref
60 to 100%
1% - 2.5%
230V, 10A
0.5-15 secs.
0 - 20%
Adjustment of endposition
Sensitivity (deadband)
Relay output (max.resistive load
Time delay
Adjustment of zeropoint
XE2
Actuators for Regulating Duty
Auma signal isolators are available in various
versions :Power supply conditions :230V AC, 110V AC or 24V DCVarious input signals :4-20 mA or 1-5 V
Signal Isolator
Description of Electronic Units
Technical Data
4-20 mA single4-20 mA dual4-20 mA & 1-5 V
230V AC + 15%110V AC + 15%24V DC + 1V
+ 0.1% of output span
+ 2% min. at zero+ 10% min. at span
Power Supply
Input 4-20 mA1-5V
Signal Isolator
Output
Accuracy
Zero & spanadjustment
Various output signals :4-20 mA single or dual or 4-20 mA & 1-5V
Isolation is provided between input and output and between two outputs.
20
Version I
Technical Data - PS01
220V or 115V (+ 15%)50 Hz or 60 Hz
24V +1V DC
Snap on type for DINrail 46277
Supply voltage andfrequency
Power drawn 9 VA
Output voltagemax.
Mounting
Power supply unit PS01
Version II : For remote position indication withpotentiometer 220 ohms as position transmitter : In this two additional potentiometers P1 and P2 are provided for positions zero and maximum.
Version II
This unit gives 24V DC power supply forregulating system (example : for CU01) & forremote position indication (example : by avoltmeter suitably calibrated). There are two
Version I : For regulating application with
The output voltage Uo & Uc require no trimmingpotentiometer. The voltage Uc is diverted from voltage Uo, thus Uc can serve as common reference potential for whole regulating system. This version is suitable for IWG 1003 or
versions available:
15%, 50 HzThe maximum output voltage isUo = 24V + 1 V DCUc = 5.5V + 0.5V DC
Supply voltage to PS01 is 220V or 110V +
RWG 1001.
CU01 :
Auma Norm Actuators
Auma Integral Starter Actuators
Actuator Types
This actuator offers a complete actuator type SAwith electric motor, torque switch for open - close direction, limit switches for both end positions & blinker switch for running indication. The required reversing contactor should be installed separately & wired to the motor. For signalization of the switching and to trip the contactors over micro switches, control wires are required from actuator terminalcompartment cover to reversing contactor
installed separately.
Auma Norm
The purpose of offering Integral motor controlsfor the actuator is to enable the customer to savehigh installation costs for external controls. Actuators with integral controls include control & switching elements and are supplied
All electrical components such as limit, torque,thermo switches, all monitoring elements & position transmitter are integrated into modern controls.This results in following simplification.
ready for use.
- No extensive wiring in the external control cabinet
Auma Integral Starter
21
Actuator can be operated from Local or
Integral starter housing can be easily
between actuator & integral starter unit.
on the integral starter unit.
Remote position by means of selector switch
Several actuators can be connected to common
actuator.
supply cable using isolating switch for each
Actuator signals are processed in the controls,
only feed back to process control system isnecessary.
exchanged due to multi pin plug connector
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Actuator Types
Control Versions of Integral Starter Units
Auma Compact
Auma Compact
Auma compact is available as Norm or Regulating duty actuator. Depending upon Norm or Regulating duty, following features /
optionals are available :
Reversing contactorsSelector switchPush buttons & indicating lampsThermal overload relayPower supply unit PS01 for 24 V DC outputElectronic positioner CU01Electronic position transducer RWG / IWGPhase discriminatorSignal isolatorDC relay for remote operationRemote annunciation relay for supply indication
Multi pin connector can be provided betweenactuator and compact and between compact &terminals for customer connections.
This is a simpler version of Integral Starter Unitwith selector switch & push buttons. The
The actuator can be operated locally i.e. at the actuator by push buttons OPEN-OFF-CLOSE.
The actuator can be operated from remote control station. The running direction is
The actuator cannot be operated with local
The selector switch can be locked in any positionwith pad lock. The compact unit is completely wired with reversing contactors and no
LOCAL :
REMOTE :
OFF :
selector switch has 3 positions :
The running direction is indicated by LEDs.
indicated by LEDs on the actuator.
controls or from remote.
additional control box is required.
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