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Operating Instructions
Baelz-electrodyn
Actuator for modulating duty
Motorized linear actuator baelz 373-E66
Technical specifications subject to change
W. Bälz & Sohn GmbH & Co.
Phone +49 (0)7131 15 00 0
TA-MG 3515
Koepffstrasse 5
Fax +49 (0)7131 15 00 21
BA 373-E66
Observe copyright protection DIN 34
74076 Heilbronn
www.baelz.de
mail@baelz.de
Page 1/37
Germany
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Related Manuals for Baelz Automatic 373-E66 Series
Summary of Contents for Baelz Automatic 373-E66 Series
- Page 1 Page 1/37 Operating Instructions BA 373-E66 Baelz-electrodyn Actuator for modulating duty Motorized linear actuator baelz 373-E66 TA-MG 3515 Technical specifications subject to change Observe copyright protection DIN 34 W. Bälz & Sohn GmbH & Co. Koepffstrasse 5 74076 Heilbronn Germany Phone +49 (0)7131 15 00 0 Fax +49 (0)7131 15 00 21 www.baelz.de...
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Page 2: Table Of Contents
Page 2/37 Operating Instructions BA 373-E66 Table of contents 1. SAFETY Intended use ..........................4 For the operator .......................... 4 Personnel ............................ 5 Before starting work ........................5 During operation ......................... 5 1.5.1 Transport, installation and mounting ................... 5 1.5.2 Service and maintenance ......................5 Work environment ........................ - Page 3 Page 3/37 Operating Instructions BA 373-E66 Setting the potentiometer ......................16 Setting the limit switches S3 and S4 ................... 17 7. POSITIONING ELECTRONICS Operating principle of the positioning electronics ............... 18 Mounting the positioning electronics ................... 19 Electrical connection ........................19 7.3.1 Terminal assignment ........................
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Page 4: Safety
Page 4/37 Operating Instructions BA 373-E66 1. SAFETY Carefully read the present Operating Instructions, especially the following safety precautions prior to installation and operation. Caution Potentially hazardous situation which could result in minor injury. Caution Also indicates a risk which may cause material damage. Attention Potentially harmful situation which can result in damage to the product or an object in its Attention... -
Page 5: Personnel
Page 5/37 Operating Instructions BA 373-E66 1.3 Personnel Only qualified personnel may operate these linear actuators or work in their vicinity. Qualified persons are persons who are familiar with the set-up, installation, commissioning, operation and maintenance of the linear actuators and possess the required qualification for their activity. -
Page 6: Product Description
Page 6/37 Operating Instructions BA 373-E66 2. PRODUCT DESCRIPTION 2.1 Identification Each actuator has an identification label. This label includes specifications regarding the maximum operating con- ditions of the device and a unique, order-related serial number (F no.). Figure 1: Baelz identification label for motorized actuators 2.2 Specifications Type Baelz 373-E66... -
Page 7: Accessories And Options
Page 7/37 Operating Instructions BA 373-E66 2.3 Accessories and options Options package 1 (continuous control) 2 additional limit switches (S3 and S4) for signalling end positions or intermediate positions, freely 2 WE adjustable, max. 250 V AC, rating for resistive load max. 5 A, for inductive load max. 3 A Potentiometer 1000 ohms, linearity error ≤... -
Page 8: Operating Conditions
Page 8/37 Operating Instructions BA 373-E66 2.5 Operating conditions Attention 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. ●... -
Page 9: Transport And Storage
Page 9/37 Operating Instructions BA 373-E66 3. TRANSPORT AND STORAGE Risk of injury caused by failure to observe the safety regulations! Caution ● Wear the required personal and other protective equipment. ● Protect the linear actuator from impacts, shock, vibration and similar influences. ●... -
Page 10: Assembly With Valve
Page 10/37 Operating Instructions BA 373-E66 4.2 Assembly with valve Prior to assembly check that ● the specifications of the linear actuator comply with the operating conditions. ● the valve is complete (yoke on actuator or on valve). ● the connections on valve and actuator match. Figure 6: Assembly with valve It must be ensured that the connecting rod of the actuator and the valve spindle are correctly aligned. -
Page 11: Operating Principle
Page 11/37 Operating Instructions BA 373-E66 4.3 Operating principle Motorized linear actuators for modulating and open-close duty of control and process technology to operate control valves. The self-locking stem/stem nut is driven by an electric motor via a gearing. This converts the rotary motion into a linear motion. -
Page 12: Electrical Connection
Page 12/37 Operating Instructions BA 373-E66 4.5 Electrical connection Risk of electric shock! Danger Make sure to use an appropriate power supply to ensure that no dangerous voltage will enter the device during normal operation or in the event of a system failure or failure of system components. Failure to heed this warning may result in death, serious injury or substantial material damage. -
Page 13: Commissioning
Page 13/37 Operating Instructions BA 373-E66 5. COMMISSIONING Compare the thrust of the actuator and the set travel with the valve data. Overload can result in severe damage to the valve. Pay attention to moving parts during mounting and adjustment. Risk of injury and or substantial material damage. Attention, the linear actuator is factory-set to a stroke of 44 mm. -
Page 14: Accessories
Page 14/37 Operating Instructions BA 373-E66 Use an insulated screwdriver to actuate the switching rolls of the DE switches and WE switches as shown in the connection diagram and check that the respective switches actually switch off the motor. If necessary, change the motor supply jumpers installed. Risk of electric shock! Danger 6. -
Page 15: Mounting And Setting The Switching And Signalling Unit
Page 15/37 Operating Instructions BA 373-E66 It is operated by the axial motion of the connecting rod via the adjusting lever [260] with continuously adjustable slider [261] which is fitted to the threaded bolt of the connecting rod. The slider engages in the slot of the driv- ing lever [259]. -
Page 16: Setting A Different Travel
Page 16/37 Operating Instructions BA 373-E66 Self-locking nut Teflon washer Baelz anti-rotation fixture Adjusting lever Teflon washer Self-locking nut Figure 11: Adjusting lever position detection Figure 12: Adjusting lever with anti-rotation fixture 6.3 Setting a different travel Please make sure not to damage the adjusting lever [260] when manually extending the spindle! If the travel has to be adjusted, the adjustment must be made in the end position "connecting rod extended". -
Page 17: Setting The Limit Switches S3 And S4
Page 17/37 Operating Instructions BA 373-E66 6.5 Setting the limit switches S3 and S4 ● Retract the actuator connecting rod by the set travel ● Unscrew the knurled nut [273] up to the self-locking nut [281] ● Insert a screwdriver into one of the cam slots (of the cam set next to the mounting angle) for switch S3 [282] ●... -
Page 18: Positioning Electronics
Page 18/37 Operating Instructions BA 373-E66 7. POSITIONING ELECTRONICS 7.1 Operating principle of the positioning electronics The positioning electronics is designed for the control and positioning of actuators. By applying a continuous input signal, the positioner moves the actuator to the defined position. To do so, the positioner compares the controlled variable (actual value) and the reference variable (set point). -
Page 19: Mounting The Positioning Electronics
Page 19/37 Operating Instructions BA 373-E66 7.2 Mounting the positioning electronics Mechanical assembly is done at the factory. After the actuator has been mounted on the valve and the switching and signalling unit have been adjusted, set the potentiometer zero point. as described in chapter 6.4. 7.3 Electrical connection Risk of electric shock! Danger... -
Page 20: Terminal Assignment
Page 20/37 Operating Instructions BA 373-E66 7.3.1 Terminal assignment Terminal X4: To avoid interference, route the signal lines separately from the voltage supply lines. Particularly when using volt- age signals, we recommend to use a shielded cable and to connect the shield to the protective earth (PE) connec- tion on the actuator housing. -
Page 21: Determining Input And Output Signals
Page 21/37 Operating Instructions BA 373-E66 7.3.2 Determining input and output signals The actuator is either preset to 0...10 V, 0...20 mA or to 2...10 V, 4...20 mA . Depending on the configuration, the lines for the input and output signals are connected to terminal X4. 7.4 Commissioning and settings Figure 17: Positioning electronics Potentiometers... - Page 22 Page 22/37 Operating Instructions BA 373-E66 Switch Description S1.1 Preset zero 0 mA 4 mA S1.2 Spreading S1.3 Fail close S1.4 Fail open S1.5 Fail as is Description Position Dead band 1.5% 1.0% 0.5% 0.25% Inversed action / action reversal Measurement points Description Signal...
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Page 23: Calibrating The Positioning Electronics To The Travel
Page 23/37 Operating Instructions BA 373-E66 7.5 Calibrating the positioning electronics to the travel The positioning electronics are adjusted by the manufacturer for the specified travel. Therefore only minor calibra- tion should be required. The following requirements must be fulfilled before proceeding: ●... -
Page 24: Detecting Wire Breaks
Page 24/37 Operating Instructions BA 373-E66 7.8 Detecting wire breaks The wire break detection function permits detection of incorrect input signals. This function can be activated or de- activated using switch S1.5. To use this function, the input signal must be set to 4...20 mA or 2...10 V. When using the wire break detection function with the input signal set to 0...20 mA or 0...10 V, a malfunction of the positioner will occur. -
Page 25: Changing The Preset Signal Range For The Set Point
Page 25/37 Operating Instructions BA 373-E66 7.10 Changing the preset signal range for the set point The positioning electronics can be preset using measurement points without the need for an input signal. For ad- justment to the actuator, refer to chapter 7.5 Calibrating the positioning electronics to the travel. Adjusting the 4...20 mA or 2...10 V signal Configuration of DIP switches S1: S1.1... -
Page 26: Specifications
Page 26/37 Operating Instructions BA 373-E66 7.11 Specifications Command signal 0(4)...20 mA, Ri approx. 50 Ω 0(2)...10 V, Ri > 100 kΩ Feedback signal 0(4)...20 mA, load 500 Ω 0(2)...10 V corresponds to the command signal Indicator LEDs Potentiometer 1000 Ω Relay Relay contacts max. -
Page 27: Electronic Position Transmitter "Esr
Page 27/37 Operating Instructions BA 373-E66 8. ELECTRONIC POSITION TRANSMITTER "ESR" This actuator can also be equipped with an electronic position transmitter. It is installed in the linear actuator as an additional module in combination with a special switching and signal- ling unit [114]. -
Page 28: Electrical Connection Of The Electronic Position Transmitter
Page 28/37 Operating Instructions BA 373-E66 8.3 Electrical connection of the electronic position transmitter To avoid interference, route the signal line separately from the voltage supply line to the actuator using tinned cop- per braided sleeving. ● Remove the cable gland or dummy plug from the actuator housing ●... -
Page 29: Setting The Electronic Position Transmitter
Page 29/37 Operating Instructions BA 373-E66 8.4 Setting the electronic position transmitter The position transmitter can be operated in two modes. The operating modes are selected with the mode selector (1). Output current Normal mode "N": ● rising characteristic when rotating the gear wheel Electronic position transmitter clockwise or retracting connecting rod or... -
Page 30: Adjusting The Output Current To 0 Or 4 Ma
Page 30/37 Operating Instructions BA 373-E66 8.4.3 Adjusting the output current to 0 or 4 mA ● Move the actuator to the position at which the output current is to be 4 mA ● Manually rotate the black adjustment wheel (2) against the white actuator gear wheel (1), or use a screw- driver for rotating, to adjust the output current to 3.98–4.02 mA (for two-wire connection). -
Page 31: Heater
Page 31/37 Operating Instructions BA 373-E66 9. HEATER We recommend to install a heating resistor to prevent condensation underneath the cover in the event of ● considerable fluctuations in ambient temperature ● high humidity ● outdoor installation The heating resistor is controlled by a thermostatic switch "TW" (bimetallic contact). The heating is deactivated at a temperature of approx. -
Page 32: Connection Examples
Page 32/37 Operating Instructions BA 373-E66 10. CONNECTION EXAMPLES The circuit diagram is only an example and is only intended for general information. Always use the connection diagram enclosed with the actuator. The connection of load-dependent DE switches and travel-dependent WE switches depends on the application (valve type, deactivation in end position, ...) and must be defined by the operator. -
Page 33: Spare Parts
Page 33/37 Operating Instructions BA 373-E66 11. SPARE PARTS Fig. 30: Position of spare parts in the actuator Comp./Pos. Component description Comp./Pos. Component description Cover Spacer Cover bolt Spacer bushing Connecting rod Insulating plate for "PEL" Coupling flange Connector Threaded bushing Spacer ring Anti-rotation flange "PEL"... -
Page 34: Technical Specifications Subject To Change Observe Copyright Protection Din
Page 34/37 Operating Instructions BA 373-E66 When ordering accessories or spare parts, make sure to observe the specifications on the identification label of your actuator. The actual technical data of the linear actuators and the power supply requirements are the specifi- cations indicated on the identification label. -
Page 35: Check List For Operational Malfunctions
Page 35/37 Operating Instructions BA 373-E66 13.1 Check list for operational malfunctions Cause Action required Malfunction Actuator Power failure Determine the cause and correct the problem. will not operate. Defective fuse Determine the cause and correct the problem, (in control cabinet) replace the fuse. -
Page 36: Dimension Specifications
Page 36/37 Operating Instructions BA 373-E66 14. DIMENSION SPECIFICATIONS S21 Spindle diameter 20mm Figure 33: Dimension specifications E66 Technical specifications subject to change Observe copyright protection DIN 34 W. Bälz & Sohn GmbH & Co. Koepffstrasse 5 74076 Heilbronn Germany Phone +49 (0)7131 15 00 0 Fax +49 (0)7131 15 00 21 www.baelz.de... - Page 37 Page 37/37 Operating Instructions BA 373-E66 S41-C Figure 34: Dimension specifications E66 with yoke Technical specifications subject to change Observe copyright protection DIN 34 W. Bälz & Sohn GmbH & Co. Koepffstrasse 5 74076 Heilbronn Germany Phone +49 (0)7131 15 00 0 Fax +49 (0)7131 15 00 21 www.baelz.de mail@baelz.de...