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Operating Instructions
BA 7020
Technical specifications subject to change without notice
Copyright according to ISO 16016
BA_7020_00_EN_MJ_4917
Baelz 7020
Digital Positioner
in a Motorized Linear Actuator
Page 1: ...24 Operating Instructions BA 7020 Technical specifications subject to change without notice Copyright according to ISO 16016 BA_7020_00_EN_MJ_4917 Baelz 7020 Digital Positioner in a Motorized Linear A...
Page 2: ...ND STORAGE 8 4 MONTAGE 9 4 1 Installation 9 4 2 Installation of controller 10 4 3 Connection to electrical supply 10 4 4 Electrical connection 10 5 QUICK START GUIDE 11 5 1 Switching on the Baelz 7020...
Page 3: ...MISSIONING AND DISPOSAL 22 10 WIRING DIAGRAMS BAELZ 7020 23 10 1 Wiring diagrams for operation in safety mode 24 ANNEX A INSTRUCTIONS FOR OPERATION USING MODBUS A1 FUNCTIONAL DESCRIPTION A2 A2 OPERATI...
Page 4: ...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 sh...
Page 5: ...er perform any work which might present a hazard to persons or damage the actuator or other property in any way 1 4 Before starting work Prior to starting any kind of work check that the types specifi...
Page 6: ...de Digitaler Stellungsregle baelz 7020 Ger Nr C 100001 FD 112 17 24V 50 60Hz Made in Germany W w Digitaler Stellungsregler baelz 7020 Ger Nr C 100003 FD 112 17 24V 50 60Hz Made in Germany W B lz Sohn...
Page 7: ...x 5 mA Digital input 1 configurable eg summer winter switch Imax 5mA low 0 5VDC high 9 38VDC Re 5 5k Digital output 2 potential free auxiliary changeover switches configurable max 250 VAC 4A Analogue...
Page 8: ...tration such as areas with heavy traffic 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 mus...
Page 9: ...t installation ONLY operate actuator with valve fitted Danger of serious damage to actuator Operating the linear actuator without a valve can lead to the destruction of the actuator due to lack of a l...
Page 10: ...provider Check that the supply voltage and frequency match those given on the name plate of the positioner and the name plate of the actuator motor The wire size should always correspond to the power...
Page 11: ...go 5 1 Switching on the Baelz 7020 Configure using DIP switches 1 4 and 7 10 before switching on For the first two seconds after switching on the unit cannot be operated and Modbus access is not avail...
Page 12: ...r in standard mode In standard mode the positioner is set to heat In standard mode cooling can be selected by setting all three DIP switches 7 8 and 9 to position 1 Combination with split range or the...
Page 13: ...ing diagram chapter 10 from 0 to 1 save 2EZ 1 2 DIP 6 Current position of the actuator is saved as second additional switching position 2EZ 1 See wiring diagram chapter 10 from 0 to 1 save 2EZ 2 98 DI...
Page 14: ...arried out with DIP switches 7 8 and 9 set to 0 Cooling in standard mode is carried out with DIP switches 7 8 and 9 set to 1 Split range can be combined with heating in standard mode but not with cool...
Page 15: ...oner operation on the red LED See also chapter 6 4 Initialisation run Function DIP 7 DIP 8 DIP 9 Linear 1 1 0 0 0 Split range split 50 offset 0 1 0 0 Split range split 50 offset 50 0 1 0 Split range s...
Page 16: ...lisation run See FigFig 11 page 17 for meaning of LED signals An initialisation run can still be carried out but it will take approx 1x valve travel time longer During a successful initialisation run...
Page 17: ...ble If the red LED is flickering the position of the potentiometer is at the edge of the optimal range and therefore OK 5 green and red flashing Error during initialisation Unit is not initialized The...
Page 18: ...cated to an overriding external control system antifreeze excessive temperatures For external control the N S switch must be set to S safety mode 20 22 Digital input for a switch used to select betwee...
Page 19: ...usted in standard mode but only take effect in Modbus mode 6 7 3 Modbus mode When DIP switch 11 is set to 1 the Baelz 7020 is in Modbus mode In Modbus mode the 7020 is at its most flexible and can be...
Page 20: ...itialisation and those occuring during normal positioner operation Setting DIP switch 12 from 1 back to 0 permits the red LED to show any normal operational errors instead of initialisation errors whi...
Page 21: ...ror codes during normal positioner operation In case of errors which cannot be rectified or are not covered in this documentation please contact Baelz see footer or contact your nearest Baelz customer...
Page 22: ...on the positioner The name plate gives the correct technical specifications and power supply requirements of the unit Faulty or incorrect spare parts cause damage Attention Spare parts must comply wit...
Page 23: ...ichnung Ursprung A S B _ 7 0 2 0 _ V 1 3 s k f nderung Gepr Bearb Datum TS 0 4 0 7 1 7 W B lz Anschlussbild baelz 7020 C o G m b H 2 3 26 38 Digital Positioner baelz 7020 GND A R 5kOhm PE N L Bl M Rd...
Page 24: ...e Spindle extended valve closed excessive temp OT has priority Spindle extended valve closed antifreeze FP has priority Spindle extended valve open excessive temp OT has priority Spindle extended valv...
Page 25: ...ng Instructions BA 7020 Technical specifications subject to change without notice Copyright according to ISO 16016 BA_7020_00_EN_MJ_4917 Baelz 7020 Digital Positioner Appendix A Instructions for Opera...
Page 26: ...in both Modbus and standard mode However almost all configurations made using Modbus are not operative in standard mode These configurations will only be operative when DIP switch 11 is set to 1 A2 OP...
Page 27: ...o main menu In the main menu send selection arrow to IMM Go to submenu highlighted by selection arrow Select parameters to modify selection arrow blinks Saves change Move selection arrow one place fur...
Page 28: ...o create a backup copy of the 7020 configuration Enter the desired storage location under Dateiname file name This can be done either directly in the input bar or by using the Durchsuchen search butto...
Page 29: ...Can be placed in front of M or V M Manual Manual operation Always set to A Automatic in standard mode V Value Numeric value manual specification Only active in extended Modbus operating mode A4 2 IVS...
Page 30: ...alve running time Switching hysteresis of the three point controller Valve running time in seconds determined during initialization process Switching hysteresis in determined during initialization pro...
Page 31: ...11 Coordinates UX1 to UY11 as part of an 11 point characteristic curve Set DIP switch 7 to 0 DIP 8 to 1 and DIP 9 to 1 to allow X and Y coordinates of an 11 point characteristic curve to be entered Ot...
Page 32: ...figured limiting value AL1 is compared with AI1 first 2EZ in standard mode An alarm is issued when this limiting value is underrun AL1 is set either with DIP switch 5 see Chapter 6 3 or by entering 1...
Page 33: ...e communication speed 0 19200 bits per second 1 9600 bits per second 2 4800 bits per second 3 2400 bits per second The connection to the PC is broken if the baud rate is changed using Modbus VT100 The...
