Baelz Automatic BA 375-E42 User manual

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BA_375-E42_01_DEF_MJ_4419
Operating Instructions BA 375-E42
Motorized Rotary Actuator baelz 375-E42
Technical specications subject to change without notice Copyright according to ISO 16016

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Motorized Rotary Actuator baelz 375-E42
Table of Contents
1. SAFETY 4
1.1 Intended use 4
1.2 Instructions for the operator 4
1.3 Personnel 5
1.4 Before starting work 5
1.5 During operation 5
1.5.1 Transport, installation and assembly 5
1.5.2 Maintenance and repair 5
1.6 Working environment 5
2. PRODUCT DESCRIPTION 6
2.1 Identication 6
1.7 Motorized rotary actuator 6
2.2 TechnicalSpecications 6
3.2 Accessories and options 7
3.1 Type name 7
2.3 Operating conditions 7
3. TRANSPORT AND STORAGE 7
4. ASSEMBLY 8
4.1 Fitting position 8
4.2 Assembly with the valve 8
4.3 Principle of operation 9
4.3.1 Manual adjustment 9
4.3.2 Removing the cover 9
4.4 Electrical connection 10
4.5 Carrying out the electrical connection 10
5. COMMISSIONING 11
5.1 Setting the mechanical end stops 11
5.2 Setting the limit switches 11
5.3 Test run 11
5.3.1 Checking the direction of rotation 11
5.3.2 Switching off in end positions 12
6. RETROFITTING OF ADDITIONAL COMPONENTS 13
6.1 Retrottingofpotentiometer 13
6.2 Retrottingoftwoadditionaltravelswitches(2EZ) 14
6.3 Fitting the 7020A digital postioner 15

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Motorized Rotary Actuator baelz 375-E42
7. DIGITAL POSITIONER 7020A 18
7.1 Intended use 18
7.2 Operational modes and operating options 18
7.2.1 Standard operation using DIP switches 18
7.2.2 Standard operation using Modbus VT100 or direct addressing 18
7.2.3 Modbus mode 18
7.2.4 Normal and safety modes 19
7.2.5 Safety mode: freeze protection and excessive temperature 19
7.2.6 3-point control with a continuous output signal 19
7.3 Wiring diagrams and allocation of connection terminals 19
7.3.1 Wiring diagram 19
7.3.2 Allocation of connection terminals 20
7.4 CongurationoftheDIPswitches 21
7.4.1 Details on DIP switches 22
7.5 Commissioning 24
7.5.1 Quick start guide 24
7.5.2 Initialization run 24
7.5.3 Meaning of LED signals 25
7.6 Errors 26
7.6.1 Errors after an initialization run 26
7.6.2 Errors during normal positioner operation 27
7.7 TechnicalSpecications 28
7.8 Accessories and options 28
8. SPARE PARTS 29
9. DECOMMISIONING AND DISPOSAL 30
10. TROUBLESHOOTING 30
10.1 Checklist for operational malfunctions 31
11. DIMENSIONAL DRAWINGS 32

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Motorized Rotary Actuator baelz 375-E42
1. SAFETY
Read these operating instructions, in particular the following safety instructions, carefully
before installation and operation.
Beware
Potentially hazardous situation that could result in minor injury.
Also indicates a hazard that may result in property damage.
Beware
Caution
Potentially harmful situation in which the product or an object in its
vicinity may be damaged.
Caution
Danger
Imminent danger of death or serious injury.
Danger
Warning
Potentially hazardous situation that may result in death or serious injury.
Warning
Application instructions and other useful information.
1.1 Intended use
Baelz 375-E42 motorized rotary actuators are controlled by three-point control or constant
control in combination the digital positioner baelz 7020A. The rotary actuators of the series
described in this document are intended for the rotary adjustment of valves.
Toensuretheirintendeduse,makesurethattheabovetypeidenticationcomplieswiththe
identicationlabeloftherotaryactuatorsbeforestartinganyactivities.Theactualtechnical
dataoftherotaryactuatorsandthepowersupplyrequirementsarethespecicationsindicated
ontheidenticationlabel.
Any use other than the intended use mentioned above, different tasks, and operation with other
power sources than those permitted, is considered to be improper use. In case of improper
use, the operator shall be solely liable for the risk presented to persons and the device as well
as other property!
Intended use also includes compliance with accident prevention and DIN VDE regulations as
well as safe working practices for all measures described in these operating instructions, taking
into account the usual technical regulations.
1.2 Instructions for the operator
Always keep the operating instructions available at the place where the actuator is used!
During installation, operation and maintenance, observe the applicable occupational safety,
accident prevention and DIN VDE regulations. If necessary, observe additional regional, local
or internal safety regulations.
Make sure that every person entrusted with one of the measures described in these operating
instructions has read and understood these instructions.
Tip:

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Motorized Rotary Actuator baelz 375-E42
1.3 Personnel
Onlyqualiedpersonnelmayworkonthisrotaryactuatororinitsvicinity.Qualiedpersons
are deemed to be persons who are familiar with the installation, assembly, commissioning and
operationormaintenanceoftheactuatorsandhavetheappropriatequalicationsfortheirjob.
Necessaryorprescribedqualicationsinclude,butarenotlimitedto:
●Training / instruction and the authorization to switch electric circuits and devices /
systemsonandoffinaccordancewithEN60204(DINVDE0100/0113)andthe
technical safety standards
●Training or instruction in the care and use of appropriate safety and work protection
equipment in accordance with safety technology standards.
●First aid training.
Work in a safe manner and avoid any operation that would endanger the safety of persons or
damage the rotary actuator or other property in any way.
1.4 Before starting work
Beforecarryingoutanywork,checkwhetherthetypesspeciedherecorrespondtothe
information on the name plate of the actuator:
baelz 375-E42
1.5 During operation
Safe operation is only possible if transport, storage, assembly, operation and maintenance is
carried out in a safe, proper and professional manner.
1.5.1 Transport, installation and assembly
Observe the general installation and safety regulations for heating, ventilation, air conditioning
and piping systems. Use tools only for their intended purpose. Wear the required personal and
other protective equipment.
1.5.2 Maintenance and repair
Prior to maintenance or repair, make sure that the rotary actuator is disconnected from power
byqualiedpersonnelinaccordancewithDINVDEstandards.Therotaryactuatorrequires
little or no maintenance.
1.6 Working environment
Notetheinformationonworkingenvironmentinthetechnicalspecications.

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Motorized Rotary Actuator baelz 375-E42
1.7 Motorized rotary actuator
Thebaelz373-E42isamotorizedrotaryactuatorforowcontrolapplicationsrequiringa90°
rotation,suchasthoseusingdrivebutteryvalvesorballvalves.Theactuatorsaredesigned
for highly accurate positioning in an industrial environment. Manual adjustment can be carried
one-handed and without use of a clutch. The travel-dependent and/or torque-dependent limit
switchescanbeindividuallycongured.
Eachactuatorhasanameplateshowingspecicationsregardingthemaximumoperating
conditionsofthedeviceandaunique,order-relatedserialnumber(Fno.).
Fig. 1: Baelz nameplate for motorized actuators
2. PRODUCT DESCRIPTION
2.1 Identication
2.2 Technical Specications
Table 1. Technical Specifications, baelz 375-E42
Torque Nm 150
Postioning time for 90° s 60(at60Hzthepositioningspeedandpowerconsumptionboth
increaseby20%)
Power consumption (230 V) VA 65
Nominal current (230 V) A 0.28
Type of motor synchronousmotor(syn)
Motor protection thermoswitch
Max. angle of rotation ° 90
Supply voltage 230V50/60Hz±10%(othersupplyvoltagesavailableuponrequest)
Operating mode acc. to IEC 34-1 S3 - 50 % duty cycle 1200 c/h
Cable glands 1 x M20 x 1.5; 2 x blind plug M20 x 1.5
Electrical connection internal terminal block, see wiring diagram for terminal allocation
Limit switches 2 torque dependent and 2 travel dependent switches,
max. 250 V AC, ohmic load: max. 10 A, inductive load: max. 5 A
End positions Mechanical stops, adjustable from the outside
Fitting position as required, but not "head down" with the actuator below the valve
Ambient temperature °C 0 to +50
Position indicator Position indicator in the actuator cover
Manual adjustment crank wheel
IP-rating according to EN 60529 IP 65
Connection type DIN5211,(F04),F05,F07,F10
Weight, approx. kg 7.5

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Motorized Rotary Actuator baelz 375-E42
2.3 Operating conditions
In case of extreme variations in ambient temperature and high humidity levels, installation of a
heating resistor is recommended to minimise condensation in the actuator.
Actuatorcoverswithsuppressionofthermalbridges(dualcovers)arerecommended.
● Connecttheheater(HZG)asshowninthewiringdiagram.
●Put the device into service as soon as it is installed.
The actuators are suitable for installation in industrial plants and in waterworks and power
plants with a low pollutant concentration.
Foruseoutdoorsorinanenvironmentwithahighpollutantconcentration,suchasheavytrafc
areas,industrialareas(chemicalplants,sewageplants,etc.),coastalareasandtheopensea,
the actuators must have external parts made of non-corrosive material and must be provided
with a special coating.
When used outdoors, the actuator must be protected with an additional cover against
●rain
●direct sunlight
●strong draughts
●dust
3. TRANSPORT AND STORAGE
Risk of injury caused by failure to observe safety regulations!
Caution
●Wear the required personal and other protective equipment.
● Protecttherotaryactuatorfromimpact,shock,vibrationandsimilarinuences.
● Storetherotaryactuator(orthecompleteactuator/valveassembly)inadryplace.
● Observethetransportandstoragetemperaturelimitsof-20to+60°C.
Table 2. Options for Actuators
2EZ-Fg Two additional limit switches for signalling end positions or intermediate positions, freely adjustable,
max. 250 V AC, rating for resistive load max. 10 A, for inductive load max. 5 A
Fg5k 5kΩpotentiometer,linearityerror≤0.5%,max.1.5W,contactcurrent30mA
7020A
Digital positioner for actuator control, self adapting
1inputsignal:0(2)…10V,0(4)…20mAor(3-point)
2outputsignals:0(2)…10Vand0(4)…20mA
1 digital input, 2 relays for feedback on end or intermediate positions,
InterfaceRS485ModbusRTU,incl.5kΩpotentiometer
Hzg Heatingresistorwiththermoswitchagainstmoisturewithautomatictemperatureregulation,
max. 15 Watts
baelz 375 - E42 - 150Nm - 60s - 230V
motorized rotary actuator actuator type torque positioningtimefor90° supply
3.1 Type name
3.2 Accessories and options

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Motorized Rotary Actuator baelz 375-E42
4. ASSEMBLY
Make sure that the specications on the nameplate correspond to those in
the order documents!
4.1 Fitting position
Do not mount rotary actuators "head down" below the valve. Allow for about 200 mm space
above the cover at the site of installation.
4.2 Assembly with the valve
Before assembly, check the rotary actuator for damage. Damaged parts should be replaced
with original spare parts. After assembly, check the rotary actuator for damage to the paint.
Touch up the paint if necessary in order to prevent corrosion.
ForgatevalvestherecommendedassemblypositionistheSHUTendposition.Forthis,
turnthecrankwheelontherotaryactuatorclockwiseuntilthemechanicalstopoftheSHUT
position is reached before assembling.
For ball valves the recommended assembly position is the OPEN end position. For this, turn
the crank wheel on the rotary actuator anticlockwise until the mechanical stop of the OPEN
position is reached before assembling.
Thorouglydegreasethecontactsurfacesoftheconnectingangesoftherotaryactuator
and the valve. Lightly grease the valve shaft. Fit the coupling to the valve shaft and secure it,
keepingtothedimensionsXandY(seeFig. 2 and Table 3,below).
Lubricate gear teeth on the coupling thoroughly with acid-free grease. Fit the actuator so
thattheconnectionholesintheactuatorandthevalveangearealigned,possiblyturning
the actuator on the coupling by one tooth. If necessary, turn the crank wheel slightly towards
OPENorSHUTuntiltheholesarealigned.Ensurecorrectalignment(ifapplicable)and
completecontactofthemountingfaces.Fixactuatorwithscrews(atleastquality8.8)and
spring washers; Tighten screws alternately and gradually up to the torque given in Table 3,
below.
Fig. 2: Coupling / Assembly of actuator and valve
Attention
Table 3. Dimensions for coupling and
tightening torques for screws
Connection X max.
(mm)
Y max.
(mm) size TA (Nm)
F05 0,5 3 4 x M6 10
F07 0,5 3 4 x M8 25
F10 0,5 3 4 x M10 50
coupling
grub screw
valve
A B
Y
X

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Motorized Rotary Actuator baelz 375-E42
4.3 Principle of operation
4.3.1 Manual adjustment
By turning the crank wheel the position of the actuator can be adjusted. This also turns the
motor.
Only carry out manual adjustment when the motor is not in motion. If a positioner is used, the
actuator will automatically move back to the original position. Therefore only carry out manual
adjustment when the actuator is disconnected from the power supply.
It is not necessary to use an extension for a greater mechanical advantage during manual
operation. Use of excessive force can damage the equipment.
4.3.2 Removing the cover
Disconnect the device from the power supply before starting any maintenance or adjustment
work.
●Loosen the four socket-head screws at the corners of the cover
● Gripthecoverandlifttoremove

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Motorized Rotary Actuator baelz 375-E42
4.4 Electrical connection
Risk of electric shock!
Danger
Use an appropriate power supply to ensure that no hazardous voltage can enter the
device during normal operation or in the event of a system failure or defective system
components.
Failure to heed this warning may result in death, serious injury or substantial material
damage.
For short-circuit protection and disconnection of the actuator from the power supply, fuses and
switch disconnectors must be provided on site. The current values for the rating depend on the
operatingcurrentofthemotor(refertothenameplate).
Theelectricalconnectionshouldonlybecarriedoutbytrained,qualiedpersonnel.
●Prior to connection, observe the instructions in this chapter.
●After connection, but before applying voltage, observe the instructions in the chapter
"Commissioning"(page11).
●When making the electrical connection, be sure that the power supply is turned OFF!
Ensure protection against unintentional reconnection to the power supply!
●For wiring and connection, observe the regulations for the construction of electric power
installations and the regulations of the local energy supplier!
● Checkcomplianceofthesupplyvoltageandfrequencywiththespecicationsonthe
nameplate of the actuator and on the nameplate of the actuator motor.
●Always select the cable cross section so as to match the actuator's power consumption
and the required cable length. Minimum cross section of the cable for this rotary
actuator: 1-2.5 mm²
In case of malfunction:
Dangerous voltage if protective earth conductor is NOT connected! Risk of electric shock!
→Donotoperatethedeviceiftheprotectiveearthconductorisnotconnected!
Trapped wires can lead to short circuiting! Risk of electric shock and malfunction.
4.5 Carrying out the electrical connection
Risk of electric shock!
Danger
→Disconnectthedevicefromthepowersupplybeforeremovingcover.
Always use the wiring diagram on the inside of the cover or supplied with the actuator.
Replace the dummy plugs with cable glands.
1. Strip the cable as necessary.
2. Strip the ends of the individual wires.
3. Forexiblewires:UsewireendferrulesasspeciedinDIN46228.
4. Connectthewiresasshowninthejob-specicwiringdiagram.
The IP-rating shown on the nameplate is only valid if suitable cable glands are used.