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Baelz Automatic 373-E66 Series, Operating Instructions Manual, Page: 31 / 37

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Operating Instructions

BA 373-E66

Technical specifications subject to change 

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 

[email protected] 

Observe copyright protection DIN 34

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. +60 °C and is reactivated at a temperature of approx. +40 °C. A continuous operating volt-

age is required for operation. The heating resistor is connected to terminal 7 and 8 of the horizontal terminal strip. 

Please specify the operating voltage when ordering as it is required to determine the resistance.
 

 

 

Figure 28: Heating resistor with thermoswitch

Hex nut M4 

Thermoswitch

Heating resistor

Self-tapping screw 

M3 x 6 DIN 7513

Summary of Contents for 373-E66 Series

Page 1: ...to change W B lz 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 Observe copyright protection DIN 34 Baelz electrodyn Act...

Page 2: ...T DESCRIPTION 6 2 1 Identification 6 2 2 Specifications 6 2 3 Accessories and options 7 2 4 Type name 7 2 5 Operating conditions 8 3 TRANSPORT AND STORAGE 9 4 MOUNTING 9 4 1 Mounting position 9 4 2 As...

Page 3: ...ro 23 7 5 2 Setting the end position 23 7 6 Setting the dead band 23 7 7 Reversing the actuator action 23 7 8 Detecting wire breaks 24 7 9 Split range control 24 7 10 Changing the preset signal range...

Page 4: ...supply requirements are the specifications indicated on the identification label Any use other than the intended use mentioned above different tasks and operation with other power sources than those p...

Page 5: ...quipment First aid training Always work safely and never perform any work which might present a hazard to persons or damage the linear actuator or other property in any way 1 4 Before starting work Pr...

Page 6: ...Supply voltages 2 5 24 V 115 V 230 V 50 60 Hz 10 Type of duty acc to IEC 34 1 S4 30 ED 600 c h Cable gland 2 x M16x1 5 and 1 dummy plug Electrical connection Inside terminal board terminal assignment...

Page 7: ...0 4 20 mA supply voltage 24 115 230 V 50 60 Hz requires 1000 ohm potentiometer HZG Heating resistor with thermoswitch against moisture with automatic temperature regulation max 15 Watts supply voltag...

Page 8: ...l covers are recommended Connect the heater HZG as shown in the connection diagram After installation put the device immediately into operation The actuators are suitable for installation in industria...

Page 9: ...ING 4 1 Mounting position When mounted with the connecting rod in horizontal position mount the linear actuator such that the two rods of the yoke are positioned on top of each other in the vertical p...

Page 10: ...or 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...

Page 11: ...ngaging lever while the motor is in motion Manual adjustment may only be done when the motor is not in motion For the adjustment push down the disengaging lever with your left hand in the direction of...

Page 12: ...tentional reconnection to power For wiring and connection observe the regulations for the erection of electric power installations and the regulations of the local energy supplier Check compliance of...

Page 13: ...the actuator manually to its intermediate position or to a sufficient distance to the end position In direction of travel CLOSE switch the actuator on and watch the direction of rotation If the direc...

Page 14: ...umpers installed Risk of electric shock 6 ACCESSORIES When mounting always make sure that the connecting rod is extended Disconnect the actuator from power before starting any work Attention limit swi...

Page 15: ...eparately with the actuator 6 2 Mounting and setting the switching and signalling unit After the linear actuator has been assembled on the valve as described in chapter 4 2 install the separately sup...

Page 16: ...el marks at 16 20 25 30 35 40 50 60 70 75 80 mm 6 4 Setting the potentiometer Use the handwheel to move the actuator to the end position connecting rod extended until DE switch S1 is switched Make sur...

Page 17: ...s if necessary use a measuring instrument to check the switching point Set the switching cam for switch S4 282 for extending connecting rod or intermediate positions as re quired After completing the...

Page 18: ...quired in the actuator The LEDs on the positioner board indicate the status of the positioning electronics Figure 15 Positioning electronics Use potentiometers P1 P2 and P4 as well as selector switche...

Page 19: ...tantial material damage When making the electrical connection be sure that the power supply is turned OFF Ensure protection against unintentional reconnection to power For wiring and connection of the...

Page 20: ...e earth PE connec tion on the actuator housing The impedance of the current input is 50 When using the voltage input the impedance is 20 k Terminal X2 Terminal X3 Connector X4 The potentiometer is plu...

Page 21: ...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...

Page 22: ...Off On S1 3 Fail close On Off S1 4 Fail open On Off S1 5 Fail as is On Off Description Position S2 Dead band 1 1 5 2 1 0 3 0 5 4 0 25 S3 Inversed action action reversal 0 Off 1 On F1 Fuse 250 mA 230...

Page 23: ...ter clockwise until the actuator is switched off by the associated switch and LED V19 just remains illuminated This can be checked by turning the potentiometer back 7 5 2 Setting the end position For...

Page 24: ...the actuator behaviour in case of a signal failure Figure 19 Cable break detection 7 9 Split range control To adjust split range control apply the set point for the upper end position e g 12 mA to th...

Page 25: ...s S1 Figure 20 Set point 4 20mA 2 10V Apply voltage to terminals 54 and 55 of the positioning electronics Measure the voltage between measurement points 3 and 6 Use potentiometer P1 to adjust the volt...

Page 26: ...yright protection DIN 34 7 11 Specifications Figure 22 Specifications Command signal 0 4 20 mA Ri approx 50 0 2 10 V Ri 100 k Feedback signal 0 4 20 mA load 500 0 2 10 V corresponds to the command sig...

Page 27: ...polarity It is designed for direct electrical connection via two wire connection with an output current of 4 20 mA Figure 23 Top view of cover with ESR 8 1 Functional principle of the electronic posit...

Page 28: ...ut the rubber seal and the inner cone bushing onto the stripped end of the cable Put the braided sleeving over the inner cone bushing Slide the outer cone bushing onto the cable end and under the brai...

Page 29: ...nsmitter fully clockwise to stop N Make sure the mode selector 1 is always set to the end position to prevent a malfunction of the position transmit ter the lower and upper range values cannot be adju...

Page 30: ...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 Fig 26 Adj...

Page 31: ...nt 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 60 C and is re...

Page 32: ...d 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 app...

Page 33: ...ng 107 Capacitor 109 Motor 110 Sealing washer 112 Load dependent switches S1 and S2 127 Cap nut 200 Handwheel 260 Adjusting lever 261 Slider 282 Travel dependent switches S3 S4 S5 283 Potentiometers R...

Page 34: ...re parts 12 DECOMMISSIONING AND DISPOSAL Dispose of the actuator in accordance with applicable country specific regulations and laws 13 TROUBLESHOOTING If the actuator does not work properly proceed a...

Page 35: ...ge drop due to connecting cables being too long and or with insufficient cross section Power fluctuations exceed permissible tolerance Loose contact in supply line Valve jammed System pressure too hig...

Page 36: ...ct to change W B lz 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 Observe copyright protection DIN 34 14 DIMENSION SPEC...

Page 37: ...cifications subject to change W B lz 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 Observe copyright protection DIN 34...

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