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1. 48 Digital setting of values 90 Du e E 1 22 MG 7 23 48 ON 7 23 48 Fail safe function RET 24 Heating positive eseseessss 14 og 0 RR RT 12 54 Impulses per revolution 39 MINN 31 Inverse CUIVe sssssseeennm me 33 K factor ssssemm 48 Limit TE To EE 15 Line termination resistors 18 Master slave seeee 30 42 43 Max ag a asd xem Pat tesis 16 Min PWM 16 MODBUS 6 17 Motor settings anne 27 Motor stop enable 22 OBEN OOD ee res 8 Operating mode essssss 13 CUTOUT CHE ana 34 Output limit eeeeee 35 Parameter sel 23 P factor rrrrrnvrvnnrrnvrrnrrrnvrrnrersvrrenrernn 10 55 PWM control 13 Refrigeration plant sssses 38 Reverse operation eesses 45 SLI 7 ROD espe RR 7 Run monitoring 3 Save set value to EEPROM 24 51 53 SENSO een 28 29 41 53 Sensor control eneren 13 SENSOR range een 10 Serial number 21 Set value aarne 24 30 56 Set value input 30 50 52 Specification of actual value 28 29 Start PWM oeren 16 Temperature control
2. 53 Terminal strip sess 6 28 Twisted pair sese 18 Winter functions eneenne 26 58 ebm papst Mulfingen GmbH amp Co KG Bachmihle 2 74673 Mulfingen Germany Phone 49 7938 81 0 Fax 49 7938 81 110 infol de ebmpapst com ebmpapst Die Wahl der Ingenieure
3. Direction of rotation j Fail save Function Max PWM P1 100 P Limits Motor stop enable P1 v Por Communication parameters Motor Einstellungen Controller function P1 Cocling Negative v Braking E Load Save P Factor P1 1000 Information I Factor P1 o Actual values Device data Electronics v set set al Qi Reset 40 Application manual for EC Control ebmpapst evice shown Logical device address MODBUS Plug Fand Physical address 3 EPTED94Q Step 6 Device type MODBUS ebm papst Standard Overview source of set values analogue B Settings Set value 95 jis Parameter set 1 j Parameter st 2 Source of set value analog Aini SI ave fan S I5 tti EN Save set value to EEPROM PU Input curve 1 P Input curve 2 Current PWM rs Output curve Set value ramp Current speed Rotating direction Essen Current parameter set P Links Active operating mode Communication parameters Motor Einstellungen Source of parameter switch Braking Load Save Current controller Function B Information Source for controller function Actual values Device data Status Electronics v Set Set all QM Reset Logical device address MODBUS Plug Fan Ste p 7 a Physical address 1 EPTED94Q Device type MODBUS ebm papst Standard Input characteristic p Device status E Settings Input curve X1 P1 V Parame
4. the motor runs with a maximum modulation level of 100 If the control deviation does not reach the configured control range the modulation level returns 2 3 2 Pl control In place of the P controller with a purely proportional control a PI controller with additional integral share is now considered portion of the total of all deviations 1 I I PI controller P share Share Fig 8 PI controller People talk about a proportional integral controller The controller output variable u is composed of the total of the P share and the I share while the I share tries to keep the control deviation in the chronological medium at zero Controller output P share I sharel 4 The calculation of the P share is already known The I share is calculated as follows NE MAT Control deviation e t 9 sensor range The l factor is the value that is input by the user in EC Control If the difference of the share per instant of sampling is above a certain range you will get the following equation upon calculation of the controller output Controller output t P share t DA I share i 6 i 0 With the above equations 2 and 5 for the P and I share the result is Application manual for EC Control ebmpapst Controller output t P factor x AD DI factor x AD 7 SENSOr FANGE i o sensor range In order to obtain the conventional view in control
5. 1 3V to slave 2 Modulation level for slave 2 13 m Slave 2 has the same output curve as the master and outputs a signal lt Switch on threshold 0 6V to slave 3 Modulation level for slave 3 0 and thus stands still second example Master 100 modulation level m With output curve Fig 48 it outputs a signal of approx 10V to slave 1 Modulation level for slave 1 100 m Slave 1 itself has the same output curve as the master and thus outputs a signal of approx 10V to slave 2 Modulation level for slave 2 100 m Slave 2 itself has the same output curve as the master and thus outputs a signal of approx 10V to slave 3 Modulation level for slave 3 100 44 Application manual for EC Control ebmpapst Cascade operation should only be implemented with a maximum number of nodes of 3 to 4 slaves Fig 49 shows the settings which must be carried out for the input and output curve in a cascade operation according to Fig 48 in EC Control Here it is important that the input characteristics are not Logical device address MODBUS Plug Fan O u t D u t C u rve Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard Device status ge Settings Function of analog output Current PWM Parameter set 1 a Parameter set 2 Output curve X1 fio Sensor settings rec are ti iN po Er Input curve 1 p gt Input curve 2 Output curve X2 T D p Output curve I Set value r
6. 10 C 1000 Fig 65 Control range and P factor You can change the control range and the P factor via two selection windows Because the two values are dependent on each other when entering the P factor the control range changes automatically and vice versa If the l factor is greater than 0 the input window is greyed out see Fig 65 control range parameter set 2 The significance of the control range of temperature regulation can be explained through the following example settings from Fig 66 99 Application manual for EC Control ebmpapst evice shown Logical device address MODBUS Plug Fand Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard B Settings Set value C zo 09 Parameter set 1 I Parameter set 2 Source of set value RS485 Bus Sensor settings po I Save set value to EEPROM Por Input curve 1 j Input curve 2 Current sensor value C Output curve Set value ramp Current speed Rotating direction PO Current parameter set Fail save Function i P Links Active operating mode 5 Communication parameters Motor Einstellungen Source of parameter switch Braking iu Load Save Current controller Function BE Information 3 Source For controller Function Actual values P Device data Status Electronics v Set v Set all Qu Reset evice shown Logical device address MODBUS Plug Fand Physical address 1 amp EPTED94Q
7. Fig 62 Analogue setpoint input differential pressure 225 Pa configure set point via potentiometer 4 3 Temperature control any control characteristic with temperature sensor Temperature controlled systems are found in many applications In order to enable the initial operation of such control for the customer the following subchapters explain setting a control characteristic In order to measure the actual value with a temperature sensor and from it form an individual control characteristic some settings are to be carried out The following sensor is used for the example 53 Application manual for EC Control 11 pepe ebmpapst Fig 63 Standardised temperature sensor Art No 50005 1 0174 For the temperature sensor you obtain the sensor characteristic curve from Fig 64 Signal Sensor characteristic curve Temperature 20 C 0 C 80 Fig 64 Sensor characteristic curve for temperature sensors In order to simplify the configuration of the control range for the user the following formula sensorrange Controlrange x 100 P factor is already contained in EC Control as the comparison in Fig 65 shows It is valid as soon as the l factor is 0 Application manual for EC Control ebmpapst evice shown Logical device address MODBUS Plug Fan Physical address 3 amp EPTED94Q Device type MODBUS ebm papst Standard Device status ge Settings Current parameter set pp i oi Parameter set 1
8. analogue setpoint input for 0 10 V set value devices 4 Aint U set value such as potentiometers also refer to 3 9 Supply voltage for additional external devices Such as potentiometers Secondary voltage DEE 10 VDC Analogue input 1 analogue setpoint input for 4 20 mA set value devices 6 Anil set value also refer to 3 9 Enabling of electronics 7 Din1 Digital input 1 Enabling Open pin or applied voltage 5 to 50 VDC Disabling Bridge to GND or applied voltage 1 VDC Change parameter set P also refer to 3 3 Digital input 2 P1 Open pin or applied voltage 5 to 50 VDC P2 Bridge to GND or applied voltage 1 VDC Select control function also refer to 2 5 Clamp D 8 Din2 9 Din3 Digital input 3 Positive heating Open pin or applied voltage 5 to 50 VDC Negative cooling Bridge to GND or applied voltage lt 1 VDC 10 GND Earth Reference ground for control interface Common line for RS485 MODBUS Analogue input 2 analogue specification of actual value for 0 to 10V sensors 11 Ain2 U actual value also refer to 3 7 Secondary voltage Supply voltage for additional external devices max 40 mA 12 20V 20 VDC such as a sensor 13 Anl Analogue input 2 analogue specification of actual value for 4 20 mA sensors actual value also refer to 3 7 Output of the current modulation level 14 Aout Ele een speed also refer to 3 10 3 and 3 10 4 Application manual for EC Control ebmpapst 2 1
9. fo Limits Pe Communication parameters Pe Motor Einstellungen be Braking i Load Save Information Actual values be Device data be Electronics v set Device shown Current parameter set Source of parameter switch Internal parameter set Control mode P1 Min PWM P1 Max PWM P1 Motor stop enable P1 Controller Function P1 P Factor P1 95 I Factor P1 95 v Set all m Cooling Negative m so 19 6 25 Q Reset Logical device address Physical address Fig 20 Parameter set 1 and parameter set 2 i 3 MODBUS Plug Fan 3 EPTED94Q Device type MODBUS ebm papst Standard Device status EF Settings Current parameter set fi Parameter set 1 Parameter set 2 Source of parameter switch R5485 Bus v 7 Sensor settings Internal parameter set Input curve 1 Parameter Set 1 m IE Control mode P2 Closed loop sensor control 57 Output curve j Set value ramp Min PWM P2 BE 7 j Rotating direction j Fail save function Max PWM P2 as j P Links Motor stop enable P2 v L dq Communication parameters Motor Einstellungen Controller Function P2 Cooling Negative Braking L Load Save P Factor P2 1000 Information I Factor P2 o Actual values Device data Electronics Motor v Set v Set all Qu Reset possible to change the parameter sets via EC Control m Parameter set 1 is selected if Din2 or Din3 is open or a voltage of gt 5
10. Open loop control The open loop control is an open functional chain with which the set value influences the initial quantity but not vice versa see Fig 3 The objective here is to bring the initial quantity x actual value to the desired control variable w set value by correctly choosing the correcting variable y A comparison of set value and actual value and the correction of the correcting variable derived from this does not take place Any interference is not compensated for Disturbance variable Z Correcting variable Initial quantity Act value Control variable set value Fig 3 Block diagram of a open loop control Open closed loop with 0 to 10V PWM controlled fan Fig 4 0 10V signal Control variable PWM signal Physical set value variable Fig 4 ebm papst open loop control 2 2 Closed loop control With a closed loop control the actual value x is detected and compared with the set value w via a measuring device as feedback variable r see Fig 5 In the comparing element these values are used to create the control deviation e This is the difference between set value and feedback variable which has to be continuously re calculated since the control path is continuously influenced by any disturbance variables z Unlike the open loop control described above the closed loop control can balance disturbance variables that arise by using this feedback and thereby make the control va
11. Parameter set 2 Source of parameter switch RS485 Bus Sensor settings i Internal parameter set o Input curve 1 pa Parameter Set 1 v ee Control mode P1 Closed loop sensor control v i Output curve i Set value ramp Min PWM P1 E i Rotating direction i Fail save Function Max PWM P1 Y NN a Motor stop enable P1 Iv 5 Communication parameters j Motor Einstellungen Controller function P1 CoolingiNegative i Braking Er Information I Factor P1 o P Actual values Device data Electronics v set v Set all Qu Reset Logical device address MODBUS Plug Fand Physical address 3 amp EPTED94Q Device type MODBUS ebm papst Standard p Device status EF Settings Minimum sensor value Parameter set 1 L Parameter set 2 Maximum sensor value 007 Sensor settings 3 i I Sensor unit Pom Input curve 1 Input curve 2 Source sensor value Ain2UJAin2I v Output curve i Set value ramp Source for controller function RS485 Bus Rotating direction Fal sava Funci n Controller Function P1 Cooling Negative ToS Controller Function P2 Cooling Negative Por Communication parameters Motor Einstellungen P Band P1 C fio un i Braking Load Save P Band P2 C ko B Information Actual values Device data Pi Electronics 80 C 20 C r Control range x 100
12. Sero DS Save set value to EEPROM Iv Input curve 1 Input curve 2 Current speed 300 r7 Output curve o c Set value ramp Current parameter set j Rotating direction i i i Fail save function Active operating mode C P Limks Source of parameter switch Po Communication parameters P Motor Einstellungen Current controller Function Braking Load Save Source for controller Function R5485 Bus e Information Status Actual values Device data Electronics Motor p v set v set all Gul Reset Fig 52 Parameter set 2 47 Application manual for EC Control ebmpapst Parameter set 1 and preferred running direction Din2 open or applied voltage 5 to 50V Parameter set 2 and reverse operation Bridge according to GND or applied voltage lt 1V Device status E Settings Parameter set 1 Source of rotating direction a amp Din2 Parameter set 2 Sensor settings Input curve 1 Input curve 2 Output curve Limits Communication parameters Motor Einstellungen Braking Load Save Information Actual values Device data Electronics Motor z Fig 53 Reverse operation source of rotating direction Changing the two parameter sets and at the same time the direction of rotation is only done by creating a bridge from Din2 to GND 4 2 Configuration notes for air flow control in air conditioning units
13. address assignment will automatically switch it to the semi m The fans are to be sorted by serial number in increasing order during installation in a system because during automatic address assignment the fan addresses are sorted based on the serial number This eases identification of individual fans in the system The serial number is structured as follows JJWWOOXXXX where JJ is the year of production WW is the production week and XXXX is a sequential alphanumeric character combination BI Aside from your ebm papst fans no other MODBUS devices should be connected to the subnet used 21 Application manual for EC Control ebmpapst 3 2 Soft On Off and Motor stop enable Continuously switching EC motors on and off on the mains side places stress on electronic components and shortens their service life To prevent this EC motors from ebm papst have an on off function Soft On Off for bringing the motor gently to a standstill This occurs by applying a low signal at digital shan 1 but this i is a different approach than switching from Din1 SoftOn Of This function is primarily lp for maintenance purposes since by doing so you can bypass a configured also brought to a standstill in normal operation if no air flow is 5 required at the moment internal 0 PWM Device shown 24 device address address Device type Device status ES Parameter set 1 Parameter set 2 7 Sensor settings
14. arrangement for refrigeration plants 43 Application manual for EC Control ebmpapst Prerequisites for cascade operation Control mode master any Control mode slaves PWM control Input characteristics of all nodes unchanged 0V 0 and 10V 100 Adapted output curve for master and all slaves ex Fig 48 EHEHEHE E U O cc O D O h on D gt lt DV cc D N e CO lt D o gt w D O fQ z D gt gt Co D eo e D DV C S D PD 2 D PD CD eR NE z D Oo m U AJ e Output curve Output signal Cascade operation 10V AN ebenen fen 43M EST 1 PWM signal 06V he OV 3 3 13 30 100 10 22 Fig 48 Output curve for cascade operation Fig 48 shows an example of curve for which at a low speed of the master the slaves themselves take on an even lower speed in sequence This should also lead to the last slaves in the chain being switched off For the above output curve this applies The higher the speed of the master the lower the difference of the speed to the other nodes becomes With full modulation level of the master the slaves likewise run at 100 First example Master 30 The modulation level of the master is at 30 m With output curve Fig 48 on slave 1 a signal of approx 2 2V is output Consequently the modulation level of slave 1 22 m Slave 1 has the same output curve as the master and outputs a signal of approx
15. different set values is not possible with an analogue source of set values Steps 4 and 5 in the above example thus are omitted from this chapter 52 Application manual for EC Control ebmpapst Potentiometer for analogue setpoint input Fig 61 Analogue setpoint input via potentiometer during air flow control In EC Control additional settings have to be carried out in addition to the configuration already F evice shown St 3 b device address MODBUS Plug Fan6 i e D L Physical address ee Set value input analogue via Ain1 Device type MODBUS ebm papst Standard Device status Settings Set value PA ms o Parameter set 1 Source of set values Analoque Paian cane Source of set value Analog Aini A In 1 5 ti son Male Save set value to EEPROM Iv Deactivate Save set value to EEPROM Set required differential pressure with external source of Input curve 1 Input curve 2 Current sensor value PA Output curve Set value ramp Current speed Rotating direction Current parameter set Fail save function Limits Active operating mode set values in order to regulate constant air flow Set value Actual value Communication parameters Motor Einstellungen Source of parameter switch Braking Load Save Current controller function Information Source for controller Function Actual values Device data Status Electronics Motor p 4f Set v Set all Qu Reset
16. engineering modifications are necessary P factor I factor Controller output t me ae x elt NT LM pi e t sensor range sensor range 53 8 Equation 8 can be carried over into the common equation through the following modifications to a PI controller Controller output t NL e0 Y o 9 sensor range P factor With the proportional gain P factor sensor range and the relationship of sampling time Ta to integral action time Tn T factor T P factor 11 the current equation 12 of a PI controller results from equation 10 and 11 T t Controller output t K e p e t 12 T n i 0 At ebm papst the sampling time Ta is 50ms which for the l factor results in equation 13 50ms T n I factor x P factor 13 Generally familiar form of representation Controller output t k co p e t a 14 n o Application manual for EC Control ebmpapst 2 4 EC Control control modes EC Control works with three possible control modes The control mode can be selected in EC Control V 2 1 under the item Parameter set Device status Settings Current parameter set fi Parameter set 1 Parameter set 2 Source of parameter switch R5485 Bus v PE Internal parameter set 1 Input curve 1 Parameter Set 1 o Input curve 2 Control mode P1 Pwm conirel v pare Closed loop speed control oo Set value ramp Min PWM P1 Closed
17. i Input curve 1 i Input curve 2 Output curve Set value ramp z Rotating direction Fail save function i 7 Limits i Communication parameters Motor Einstellungen i Braking Load Save Information Actual values Device data Electronics MODBUS Plug Fand 3 EPTED94Q MODBUS ebm papst Standard Current parameter set Source of parameter switch Internal parameter set Control mode P1 Min PWM P1 Max PWM P1 Motor stop enable P1 Controller Function P1 P Factor P1 I Factor P1 swsps Cooling Negative m o 19 6 25 m Closed loop speed control or PWM control mode 0 rom or PWM signal mM Sensor control control mode 100 Min PWM OV O 7V 1V Fig 19 Motor stop enable 0 depending on control mode Application manual for EC Control ebmpapst 3 3 Changing the parameter set MODBUS gives you the ability to save two parameter sets By selecting a parameter set you can make different pre adjustments Each of the two screens for the parameter sets include the following configuration options evice shown Logical device address MODBUS Plug Fand Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard Device status Settings Parameter set 1 Pe Parameter set 2 Sensor settings Pe Input curve 1 Input curve 2 Pe Output curve be Set value ramp be Rotating direction be Fail save Function
18. loop sensor control Rotating direction Fail save function Max PWM P1 Links Motor stop enable P1 Be Communication parameters Motor Einstellungen Controller Function P1 He ating Positive v Braking Information I Factor P1 Actual values P1 6 25 Device data Electronics Motor p v set 4 Set all Qu Reset Fig 9 Control modes The sensor detects the actual value as temperature pressure or air flow The set value is preset in the same unit If there is a control deviation between set and actual value the fan will try to minimise this despite any interference oet and actual values are specified directly as speed in rpm The current speed is measured by the electronics and through the controller the set value is correspondingly updated The fan tries to compensate for occurrences of faults and changes to the load and this keeps its speed constant m PWM control open loop control Pure open loop control This control mode has no feedback that would be necessary to say compensate for the occurrence of disturbance variables P and l factors are omitted here 2 5 Control function of a closed loop only for control mode sensor control the control function For the other two control modes this function is not relevant As shown in Fig 10 when changing the control function the control deviation of the set value and of the actual value are reversed cooling Negative and with that the
19. motor immediately applies the fail safe speed even without a cable break If that kind of a short delay is desired we recommend setting a time of 0 1 s Cable break at MODBUS interface and the fail safe function is not enabled Motor does not stop but continues running constantly The connection to the MODBUS interface is broken and the motor can no longer be controlled Speed changes can no longer be carried out also it is no longer possible to stop the motor The motor should stop completely in the event of a cable break fail safe speed 0 rom running with a minimum PWM signal Cable break detection voltage as the source of set values falls below the voltage specified here a cable break of the analogue set value device is diagnosed and the fan is switched to the fail safe speed function Exiting EC Control fail safe speed activated 29 Application manual for EC Control ebmpapst 3 5 Winter functions Device shown Logical device address MODBUS1 3 Physical address 3 COM2 Device type MODBUS ebm papst Standard evice status Threshold heating function on C fso oe Threshold heating function off C z Sensor settings io Probe motor temperature o co v Input curve 1 E 0 255 C Input curve 2 Sheding function Off v i Output curve os Set value ramp Max start PWM shake off 29 80 Direction of rotation i i Fail safe function Max number of start attempts e o v Limits j 1 Communication para
20. resulting control deviation is changed Differences between feedback variable r and set value x are not made in the following 13 Application manual for EC Control ebmpapst Reverse control function zZ l l l x Control variable cooling 5 e D OS set value us l l l l l Control variable X Act value lt CL sensor control VA with positive control function heating this applies control deviation set value actual value with negative control function cooling this applies control deviation actual value set value evice shown Logical device address MODBUS Plug Fan Physical address 2 EPTED94Q Device type MODBUS ebm papst Standard p Device status E Settings Minimum sensor value Parameter set 1 Parameter set 2 Maximum sensor value i oi SE Ang Sensor unit po Input curve 1 jr Input curve 2 Source sensor value Ain2UfAin2I v Output curve o o Set value ramp Source For controller Function R5485 Bus j Rotating direction i j Fail save function Controller Function P1 Cooling Negative g nes Controller Function P2 Heating Positive Por Communication parameters j Motor Einstellungen P Band P1 C 10 03 j Braking Load Save P Band P2 C 200 Information Actual values Device data Electronics Motor p v set Set all Q Reset Fig 11 Control function The control function howev
21. value Parameter set 1 Parameter set 2 Source of set value RS485 Bus P NE Save set value to EEPROM Je Input curve 1 o c Input curve 2 Current PWM Output curve Set value ramp Current speed v Rotating direction i Fail save Function Current parameter set Limits po Active operating mode i Communication parameters j Motor Einstellungen Source of parameter switch Braking Current controller function Be Information Source For controller Function Actual values Device data Status Electronics Motor xi v Set v Set all M Reset Fig 1 Overview of EC Control Application manual for EC Control ebmpapst The table below gives an overview of the discrete menu items with their subitems Menuitem setings 2 _ sem metdepton e Current parameter set e Parameter set e Operating mode Parameter set 1 Min PWM Two parameter sets enable the user to easily switch the settings and here among other things the control mode Motor stop enable and the control function can be selected and Max PWM parameter set 2 Control function P factor I factor e Min sensor value e Max sensor value TA Settings for actual value specifications Sensor settings e Sensor unit through sensor only relevant in control mode sensor control e Source of control function e Control function Input characteristic X1 Input characteristic 1 The input charact
22. 5 Pa The differential pressure in the nozzle has to be held constant at 225 Pa The fan supplies constant volume independent of the pressure conditions in the system lts speed is automatically adapted along the vertical curve P I L Kennlinien R3G450 AY86 01 min m A dB A 27 mm de B Mmm MNNN ENIM HB 250 Mer r m 1750 1524 23 BONE me J Nw I TST W N SE M450 maa an TSH a d R oo NEE Ea KE lam L EE tf MIS NUN ma NON DNG MNES MEN NOSE NIGER El MN NOTIN MON we frit X SS MN HOT MGT io ee NN MSS MN NUS Mom A CK BEE EEE VAR UM 2 E NL AR n SSH Yrs IV Wei Vy A Lar iil b ol 6 1000 200b 5000 CFM 2000 I 4000 6000 8000 m Fig 54 Curve diagram R3G450 AY86 01 49 Application manual for EC Control ebmpapst The configuration notes for EC Control now result from the anticipated differential pressure in the nozzle evice shown Logical device address Physical address Device type fe Parameter set 2 j Sensor settings Input curve 1 i Input curve 2 j Output curve i Set value ramp i Rotating direction j Fail save function o Limits Communication parameters i Motor Einstellungen i Braking i Load Save Information Actual values Device data Electronics v set Fig 55 Parameter set 1 evice show
23. Application manual for EC Control V2 3 ebm papst PC control software 25714 2 0199 for bus compatible fans version 2014 04 The engineer s choice Copyright ebm papst Mulfingen GmbH amp Co KG 2011 2014 All Rights Reserved April 2014 ebm papst Mulfingen GmbH amp Co KG Bachmuhle 2 74673 Mulfingen Germany http www ebmpapst com info1 de ebmpapst com In this application manual some products from other manufacturers are listed In most cases the product and manufacturer names given are registered trademarks and or brand names Application manual for EC Control ebmpapst Table of contents 1 SEN MINS UPC COINS 2 een 3 2 Basis and term definitions for EC Control enne 4 2 1 Open L000 CONTO ls RT EIE TREE 8 2 2 Closed I00p CONTO assent octo er ERUEN NEA TRETEN FUERO NHIOHIU EE TIEEK NETS IU NNER ENDO EEN 8 2 3 PA 9 2 3 1 FT 10 2 3 2 Pl control 11 24 sese ire COM MONG Ce S EE anaetsepiacdnannantataanfacassuudtetiaientanteiniacseumnacnnsnnint 13 2 9 Control function of a closed loop only for control mode sensor control 13 2 6 Limit values of the speed and the PWM signal c cccscscsscsscsecssssessesssscsscseseeseeseessessessesaseaees 15 3 Setting options and basic functions via MODBUS 17 3 1 Networking and assigning addresses to MODBUS nodes rrrnrrnrnnras ven vrnvrrvrrnrenrenrenvasvasverv
24. Device type MODBUS ebm papst Standard B Settings Set value C 2o r Parameter set 1 Parameter set 2 Source of set value RS485 Bus ML d Save set value to EEPROM E be Input curve 1 007 Input curve 2 Current sensor value C 24 97 Output curve I Set value ramp Current speed rpm 1544 i Direction of rotation I Fail save function Current parameter set i P Links Active operating mode GE a Communication parameters P Motor Einstellungen Source of parameter switch Braking iu Load Save Current controller Function BE Information Source for controller Function Actual values Device data Status Electronics v Set v Set all Qu Reset Fig 66 Temperature regulation with control deviation of 2 C and a difference of 5 C By enlarging the control deviation the modulation level increases In the above example the full speed of the motor would be reached if the actual value in other words the current temperature measured by the sensor reached 30 C and the set value would continue to be 20 C Depending on the control range the corresponding control characteristics can be generated as in Fig 6 The control range of the above example corresponds to control characteristic 2 The two control deviations of 2 C and 5 C are additionally plotted in the illustration If we would select too large a control range for the above control deviation for example control cha
25. Heating Positive gt Braking E Information pl P Actual values TFactor P2 36 5 25 Device data Electronics v Set v Set all Qu Reset Fig 59 Parameter set 2 evice shown Logical device address MODBUS Plug Fan Physical address 1 EPTED94Q Device type MODBUS ebm papst Standard EF Settings Set value PA 450 be Parameter set 1 a Parameter sot Source of set value R5485 Bus j P da Save set value to EEPROM Iv p Input curve 1 Input curve 2 Current sensor value PA ne PO Output curve Set value ramp Current speed 643 j Rotating direction Fail save function Current parameter set c Limits Poo Active operating mode Communication parameters Motor Einstellungen Source of parameter switch Braking Load Save Current controller Function Information 1 Source For controller Function Actual values Device data Status Electronics v Set v Set all QM Reset Fig 60 digital setting of values for parameter set 2 differential pressure 450 Pa enter set value for night switching 4 2 2 Analogue setpoint input during air flow control Optionally for digital setting of values from Chapter 4 2 1 it is possible to prescribe the set value in a similar way via the inputs Ain1 U or Ain1l Fig 61 shows for example the connection of a potentiometer for setting of values for the air flow control Day night switchover with two
26. V is present m Parameter set 2 can be selected by bridging from Din2 or Din3 to GND 23 Application manual for EC Control ebmpapst 3 3 1 Configuring separate set values for day night operation To store one set value for each of the two parameter sets the following settings have to be configured in sequence It is important here to activate the item after each step by clicking Set Device shewn ee Logical device address MODBUS Plug Fan Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard a re Set value p o Parameter set 1 o Parameter set 2 Source of set value RS465 Bus I eg Save set value to EEPROM Iv In Input curve 1 0 Input curve 2 Current PWM o Output curve 0 Set value ramp Current speed Rotating direction MEM f Current parameter set Fail save function c Limits EE Active operating mode v Communication parameters Motor Einstellungen Source of parameter switch Braking LoadjSave Current controller Function E Information 1 Source For controller Function Actual values Device data Status i Electronics 5 Motor zi Fig 21 Save set value to EEPROM changing the parameter set 3 4 Fail safe function assume a desired fail safe speed Information The fan detects the bus traffic and switches to fail safe mode if no bus traffic is detected via the RS485 interface m Moreover a threshold value can
27. amp Output curve 2 V o Rotating direction i Fail save Function Limits j Communication parameters j Motor Einstellungen Braking J Load Save E Information Actual values I Device data Electronics v Set v Set all QM Reset Logical device address MODBUS Plug Fand n D ut C u rve Physical address 3 amp EPTED94Q Device type MODBUS ebm papst Standard p Device status SI ave fan S EF Settings Input curve X1 P1 V Poo Parameter set 1 Parameter set 2 Input curve Y1 P1 o J Seaan Input curve X2 P1 V o Input curve 1 Input curve 2 Input curve Y2 P1 100 rs Output curve Set value ramp Rotating direction Fail save function Limits i Communication parameters Motor Einstellungen Braking j Load Save Information Actual values Device data l Electronics 4f Set v Set all QM Reset Fig 49 Output and input characteristic for cascade operation 4 1 3 Reverse operation for cleaning and de icing the exchanger Reverse operation permits the direction of rotation of a fan to be changed With devices which are equipped with a MODBUS interface and with a firmware protocol version later than V3 02 it is possible that the user can change the direction of rotation themselves either via digital input or via bus 45 Application manual for EC Control ebmpapst Preferred running against the preferred direction V running dire
28. an is disabled until the upper temperature limit has been reached Then the motor pre heating switches off and releases the fan again for normal operation While the heating is enabled a W preheating function warning Is displayed This function is possible only for specific fans and currently can be enabled only by ebm papst 26 Application manual for EC Control ebmpapst 3 6 Motor settings alarm relay Angezeigter Ventilator Einstellungen des Ventilators MODBUS1 3 Phys Adresse 3 9 EPVEJKX4 Ger te Typ MODBUS ebm papst Standard gt bersicht E Einstellungen Abfallverz gerung Relais s p 060rt OS C2C O S i Parametersatz 1 Parametersatz 2 i Sensoreinstellungen i Eingangskennlinie 1 i Eingangskennlinie 2 Ausgangskennlinie i Sollwertrampe i Drehrichtung i Notlauf Funktion i Grenzwerte i Kommunikationsparameter eee MESI Einstellungen Motor Leistungsbegrenzung i Winter Funktionen i LadenjSichern Informationen i Ger tedaten Elektronik p Setzen Alle setzen Reset v 4 Fig 24 Motor settings Example Phase failure system includes at least one ebm papst fan 3 phase device All outputs of the alarm relay are connected to the control system of this system There will be a very brief voltage dip at one of the 3 phases The function of the fans would not be impaired by this but these detect the voltage dip and switch their alarm r
29. be set for the analogue input If the analogue signal falls below this m For MODBUS 5 00 and higher the direction of rotation can also be configured during fail safe operation These options are available Clockwise Counter clockwise Retain direction of rotation m his function can be used to be able to guarantee the configured air performance even if there is a fault in the source of set values m As soon as the fan detects an analogue set value above the threshold value or a BUS signal again it continues its normal operation with the correct direction of rotation and the last set value or assumes the detected set value 24 Device shown S Logical device address MODBUS1 3 Physical address 3 COM2 Device type MODBUS ebm papst Standard Device status E Settings Fail safe speed Function i Parameter set 1 Parameter set 2 Set value fail safe speed rpm 1024 Ls ti o er Time lag fail safe speed sec zo up Input curve 1 fo Input curve 2 Cable break detection voltage V 2 99 0 Output curve Set value ramp Rotating direction fail safe mode keep direction Communication parameters Motor settings Motor derating Winter functions LoadjSave Information Application manual for EC Control ebmpapst fr Actual values pr Device data Electronics z Fig 22 Emergency operation function Special cases Time lag of 0 seconds Here you must observe that the
30. ce address can be Communication parameter e Device address modified In factory condition MODBUS devices have the address 1 Motor settinas e Speed limit limitation rpm This is the ceiling speed of the motor g and cannot be changed e Braking speed rpm Here the braking speed and the braking angle are displayed They cannot be changed and are only for Braking angle 2 informational purposes Brakeing Braking angle 1 Loading OEM data Depending on authorisations Load Save Backing up data in OEM configurations can be backed up or e Activate factory settings loaded The terminal strip of an ebm papst MODBUSdevice has the following design There may be deviations depending on the size and production date Fig 2 ebm papst MODBUS device terminal strip Application manual for EC Control ebmpapst Description of MODBUS terminal strip Clamp Mains supply Supply voltage 1 connection 3 380 to 480V AC 50 60Hz P 1 NC Status relay Status message contacts for protection are triggered if overtemperature Clamp 2 COM e motor electronics intermediate circuit over under voltage Hall error locked 2 y rotor protection phase error characteristic NC COM break for failure Status relay characteristic NO COM make for failure 1 RSA RS485 RSA MODBUS RTU D1 2 RSB RS485 RSB MODBUS RTU DO Bus connection GND Earth D Reference ground for control interface Common line for RS485 MODBUS Analogue input 1
31. ction Fig 50 Direction of rotation of an axial fan Example Change between two parameter sets including reverse operation direction In order to implement this mode the following steps have to be configured one after another evice shown Logical device address MODBUS Plug Fan Physical address 3 amp EPTED94Q Device type MODBUS ebm papst Standard Device status El Settings Current parameter set fi Parameter set 1 Parameter set 2 Source of parameter switch clamp Din2 i he Sensor settings EN jo dest Internal parameter set Parameter Set 1 v g Input curve 2 Control mode P1 pum contral 07 Output curve Set value ramp Min PWM P1 s rs 5 Rotating direction Fail save function Max PWM P1 100 o o Limits be Communication parameters Motor Einstellungen Controller Function P1 Heating Postive o Braking Motor stop enable P1 Iv j le Load Save P Factor P1 34 90 Information i I Factor P1 Actual values P1 2 98 Device data Electronics Motor Logical device address MODBUS Plug Fan amp Physical address 19 EPTED94Q Device type MODBUS ebm papst Standard Ej Settings Set value Parameter set 1 Parameter set 2 Source of set value RS485 Bus v Sensor settings Save set value to EEPROM Iv GE Input curve 1 Input curve 2 Current PWM Output curve Set value ramp Current speed rpm fn Direction of rotation Fa
32. e UT OUT electronics GND 1000 Fig 26 3 wire and 2 wire connection types B 2 wire sensors are directly connected to the voltage source and deliver a 4 to 20mA signal The GND connection is established via an internal 10002 resistor load in the fan On the terminal strip shown in Fig 25 such a sensor would be connected to Ain2 and 20V BI 3 wire sensors on the other hand are available with both output signals current signal 4 to 20mA and voltage signal 0 to 10V Depending on the type use the inputs Ain2 I terminal 13 or Ain2 U terminal 11 On the terminal strip shown in Fig 25 such a sensor would be connected to Ain2 and Ain2 U 20V and GND 28 Application manual for EC Control ebmpapst 3 8 Specification of actual value by two sensors An additional option for specifying the actual value is to use two sensors simultaneously In the design photographed below Fig 27 two temperature sensors with ebm papst Art No 50005 1 0174 are being used Fig 27 Connection of two sensors Their sensor range extends from 20 C to 80 C The Ain1 U and Ain2 U connections are both used here for specifying the actual value For sensors with a 4 to 20mA output accordingly the Ain1 I and Ain2 terminals have to be used The following options exist for calculating the actual value from the two measured values B Maximum Ain1 Ain2 Higher value of the two sensors serves as actual value m Minimum Ain1 Ain2 Lower value
33. e D u Physical address 3 EPTED94Q Set parameter set Device type MODBUS ebm papst Standard Device status Settings Current parameter set j Parameter set 1 i Parameter set 2 Source of parameter switch nssssipuss o gt SEDE segs Internal parameter set Parameter see1 v b op Input curve 1 Input curve 2 Control mode P1 Closed loop sensor control ef p Output curve Set value ramp Min PWM P1 5 Rotating direction j Fail save function Max PWM P1 100 LI me Motor stop enable P1 Iv e Communication parameters Motor Einstellungen Controller function P1 Cooing negative 3 v Braking Load Save P Factor P1 o tsts S E I Factor P1 95 p Actual values Device data Electronics Motor v Set f Set all Q Reset Fig 41 Parameter set settings for master of a refrigeration plant 38 evice shown Logical device address Physical address Device type Device status ge Settings v Parameter set 1 Parameter set 2 ae Sensor settings Input curve 1 Input curve 2 Output curve Set value ramp Rotating direction Fail save Function Limits Communication parameters Motor Einstellungen ba Load Save Information Actual values Device data Electronics v set Application manual for EC Control Step 2 Make sensor settings MODBUS Plug Fan 3 EPTED94Q MODBUS ebm papst Standard Minimum senso
34. elays This error is detected by the control system and then possibly the entire system comes to a standstill BI Such briefly occurring errors as described in the example can be ignored by setting a drop out delay of the alarm relay The time of this drop out delay should not be too long however since otherwise serious failures may be overlooked which in the long run could lead to damage of the fan m The respectively occurring error is signalled as before without a time delay via the MODBUS interface 21 Application manual for EC Control ebmpapst 3 7 Specification of actual value by sensor via the inputs Ain2 U and Ain2 I The sensors can specify pressure temperature and air flows To connect the sensor the terminal strip KL is provided with the two analogue ports Ain2 U and Ain2 I see Fig 25 Alternatively terminals Aint U and Ain1 I can also be selected Terminal 12 serves as a power supply with a voltage of 20 VDC Clamp 2 PE Clamp 1 Fig 25 Terminal strip ports for specification of actual value with sensor control Depending on the sensor output you can choose between two inputs for the specification of actual value m Ain2 U or Ain1 U analogue port 11 or 4 for sensors with 0 to 10V output m Ain2 or Ain1 analogue port 13 or 6 for sensors with 4 to 20mA output In principle there are two different connection types 3 wire and 2 wire see Fig 26 3 wire 2 wire 20V IN IN Internal in th
35. elding consists of aluminium foil or braided copper and prevents interference from electromagnetic fields Common wire See above Line termination See above Application manual for EC Control ebmpapst AARFFER Master computer Control device al o l Control unit E an e o s o 7 20V 10V Ain1 Mains supply re GE wigs HE 2E nn nn 3 PE 9 A0Z AOL s n avav ano ansle sua asa zua vs Fig 16 Connection of multiple devices to the MODBUS via twisted pair line with 2 pairs of wire 19 Application manual for EC Control ebmpapst E EE ES EE ES Tv re re re k a Master computer Control device Control unit SN 3 Common ET E E I ER EN DER EEE voltage 3 PE n Luly ane sul z vse t ev ev AO0c N culy ano swa sa i DELI AOZ n culy avs swa s fad ea A Q IN O Fig 17 Connection of multiple devices to the MODBUS via shielded twisted pair wire with 2 adapters 20 Application manual for EC Control ebmpapst 3 1 1 Automatic address assignment With fans new from the factory there is the option to use an automatic address assignment What do I have to pay attention to in order to use this function m Allfans for a system should be factory new If in a system a subnet with factory new fans is also wired with an ebm papst MODBUS protocol version older than 5 00 then the automatic
36. er has no influence on the direction of rotation of the motor rather only on the calculation of the control deviation The change of the control function becomes understandable by considering the x axis of Fig 12 Usually hand current if the set value gt actual value 14 ebmpapst Application manual for EC Control PWM 100 Heating Cooling 4 I 0 i Temperature Act value A Set value Act value B Pressure Air flow Fig 12 Heating cooling 2 6 Limit values of the speed and the PWM signal and have limits which are preset by ebm papst shown Device shewn eee Logical device address MODBUS Plug Fan amp Physical address 2 EPTED94Q o Device type MODBLIS ebm papst Standard Device status E Settings Maximum speed 850 Parameter set 1 Parameter set 2 Maximum allowed speed rpm 1000 zer Minimum allowed PWM fs oe Input curve 1 Input curve 2 Maximum allowed PYM 100 Output curve o 07 Set value ramp Start PWM 9 5 fs Rotating direction Fail save Function I Communication parameters i Motor Einstellungen Braking i Load Save Information Actual values Device data Electronics v Set v Set all QM Reset Fig 13 Limit values Here the following terms arise for the speed limit the preset permitted ceiling speed the user has no write authorisation here User can limit the speed within the permitted range here themselve
37. eristic establishes or which set value is to be achieved at Input characteristic 2 Input characteristic Y1 what input variable current voltage Input characteristic X2 Input characteristic Y2 Je eon The terminal strip of the ebm papst Output curve X1 devices has a 0 to 10V output to connect additional devices The 0 to 10V output can either be assigned to e Output curve Y1 V the PWM modulation level 0 to 100 or to the speed Output curve e Output curve X2 e Output curve Y2 V Setpoint ramp determines the time that Ramp up time s the fan requires in order to reach full speed Reduced times lead to Run down time s increased running noise of the motor The direction of rotation Direction of rotation clockwise counter clockwise can be Source of rotating direction changed here The methods for changing the direction of rotation can also be selected RS485 bus vs terminal Setpoint ramp Direction of rotation e Fail safe speed function In the case of a broken cable set value Emergency operation function e Set value fail safe speed function input the motor continues working with l l a preset fail safe speed e Time lag fail safe speed function Max speed rpm Max permitted speed rpm Limit values Min permitted PWM Max permitted PWM Here the maximum speed can be set and additional limits can be displayed Start PWM Application manual for EC Control ebmpapst l Here the devi
38. ernrrnenne 17 3 1 1 Automatic address assignment u 21 3 2 Soft On Off and Motor stop enable rrnrrnrenvrnnrenvrnnrnnvenvrrnrervrnnrrn ver vannresvennresvervennresvennresvervnennennen 22 3 3 Changing the parameter NN 23 3 3 1 Configuring separate set values for day night operation sssssseseeeennennn nnns 24 3 4 mere ES E Eon a EE 24 3 5 Winter Tran 26 3 6 Motor setings LE ke een 27 3 7 Specification of actual value by sensor via the inputs Ain2 U and Ain2 I 28 3 8 Specification of actual value by two sensors 29 3 9 Set value input via the inputs Aint U and Ain1 I or via EC Control essssssss 30 suo e 31 OT WMV NI T RH 31 NERE NE 33 O U CO EEE E ee A EE EM NE 34 3 10 4 Analogue output Impulses per revolution esses nennt nnns 35 TN 35 FG 3 4 Use of EC Control in customer applications eee 38 4 1 KEN 10000 EE ee 38 4 1 1 Master slave Configuration star shaped cccsessccsssssccssssssccsseecsseesseceseessecssessecessesaseeseesaseesaeseseesaesesaesaseesaesasensaees 38 4 1 2 Master slave Configuration with cascade operation cccccsscsssssscsscsecsscsscsssessessessecessescessessesseseesaesaeseseasasesesaesateates 43 4 1 3 Reverse operation f
39. ical address 3 amp EPTED94Q o Ste p 4 5 Device type MODBUS ebm papst Standard Output curve of the master Device status Eg Settings Function of analog output Current PWM Parameter set 1 Parameter set 2 Output curve X1 o y EE d Output curve Y1 V o us Por Input curve 1 Input curve 2 Output curve X2 100 ZEE Output curve Set value ramp Output curve Y2 V no j Rotating direction j Fail save function Limits Communication parameters j Motor Einstellungen j Braking j Load Save Information Actual values Device data Electronics v Set Set all QM Reset Fig 44 Output curve for master in refrigeration plants Settings for the slaves see below Because no sensor and no two parameter sets are required for the slaves their system settings are comparatively simple see Fig 45 Important for slave settings The steps 5 6 and 7 have to be set for ALL slaves evice shown Logical device address MODBUS Plug Fan Ste p 5 2 Physical address 1 EPTED94Q Device type MODBUS ebm papst Standard Control mode of slaves PWM control Device status E Settings Current parameter set fi DEM Parameter set 1 Parameter set 2 Source of parameter switch RS485 Bus Slave fans j Sensor settings L Ina iuvet Internal parameter set Parameter Set 1 Input curve 2 Control mode P1 pum Er j Output curve 0 Set value ramp Min PWM P1 s
40. ice status E Settings Maximum speed fi 100 be Parameter set 1 Max speed rotation monitoring rpm o j Parameter set 2 j j Sensor settings Input curve 1 j Input curve 2 Output curve j Set value ramp Direction of rotation Fail safe function Limits j Communication parameters j Motor settings j Motor derating j Winter Functions j LoadjSave Information Actual values Device data Electronics vi Fig 40 Parameter set settings for run monitoring 37 Application manual for EC Control ebmpapst 4 Use of EC Control in customer applications The following points provide exemplary configuration notes and electrical connections for typical customer applications They are recommendations and not required specifications for the specific application Settings which are applicable to the are marked by a background Settings which are applicable to the are marked in Settings which are applicable to all nodes are and 4 1 Refrigeration plantn 4 1 1 Master slave Configuration star shaped Usually in a refrigeration plant one fan works as a master and the remaining devices as slaves In order to be able to set the pressure in such operation ebm papst recommends carrying out the following system settings for the master and the corresponding slaves in EC Control The objective is to keep the condensing pressure constant evice shown St 1 Logical device address MODBUS Plug Fans
41. ie Parameter set 1 Parameter set 2 Input curve Y1 P1 rpm Sensor settings Input curve X2 P1 V Input curve 1 Input curve 2 Input curve Y2 P1 rpm 700 Output curve Set value ramp Rotating direction Fail save Function Limits Communication parameters Motor Einstellungen Braking i Load Save Information Actual values Device data F Electronics Logical device address MODBLIS Plug Fan Physical address 3 amp EPTED94Q Device type MODBUS ebm papst Standard Device status Ej Settings Input curve X1 P2 v Parameter set 1 Parameter set 2 Sensor settings Input curve 1 Input curve 2 Input curve Y2 P2 Output curve Set value ramp Rotating direction Input curve 1 P2 95 Input curve X2 P2 V Fail save Function Limits fe Communication parameters Motor Einstellungen Braking Load Save Information Actual values Device data Electronics v set set al Gul Reset Fig 31 Input curve Input characteristic parameter set 1 Input characteristic parameter set 2 Set value Set value 700 rpm 100 rpm 20 PWM Input OV 10V voltage OV 5V SV 10V voltage Input Fig 32 Examples for input curves from P1 and P2 32 Application manual for EC Control ebmpapst 3 10 2 Inverse curve With analogue set value input the input curve also offers the option of generating an inverse curve This means that the set value increases as the input signa
42. il save function Current parameter set Eom MINE Active operating mode WM contro Pom Communication parameters Motor Einstellungen Source of parameter switch Braking Load Save Current controller Function Heating Postive x E eed Source for controller Function G485 Bus Actual values KTOSIBUS Electronics Motor p Fig 51 Parameter set 1 46 Application manual for EC Control ebmpapst vice shown Logical device address MODBUS Plug Fan Physical address 1 EPTED94Q Device type MODBUS ebm papst Standard Device status EF Settings Current parameter set o Parameter set 1 Parameter set 2 Source of parameter switch a amp Din2 NE Internal parameter set j j Input curve 1 Parameter Set 1 add Control mode P2 Closed loop speed control v po I Output curve Set value ramp Min PWM P2 fs j j Direction of rotation j j Fail save Function Max PWM P2 100 j j imi Motor stop enable P2 Iv Pod Communication parameters Motor Einstellungen Controller Function P2 Heating Positive i Load save P Factor P2 35 for 19 Information I Factor P2 Actual values a 6 25 Device data Electronics Motor p v Set e set al Qu Reset evice shown Logical device address MODBUS Plug Fan Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard Er Settings Set value rpm 300 j Parameter set 1 Parameter set 2 Source of set value R5485 Bus j
43. input is Ain2 I and terminal 20V are connected see also Chapter 3 7 41 Application manual ebm papst EC Control Master Sensor control Slaves PWM control with analogue source of set values Ain1 U HRE AF Group alarm PAA break for failure BEL Slave n gt elelelsielele rm TT v v le i LE E AL eee 10V aL ALL Slave 1 SS Slave 2 Fig 46 Connection diagram star shaped master slave Arrangement for refrigeration plants 42 Application manual for EC Control ebmpapst 4 1 2 Master slave Configuration with cascade operation Another option for the master slave configuration is cascade operation Via the analogue output Aout the master forwards its set value in the form of a 0 to 10V signal to the first slave In contrast to star shaped arrangement from Fig 46 the slaves here are not parallel but rather connected in series and the output curve of all nodes is adapted Group alarm EN P break for failure AN Master Slave 1 vV 10 EI B E 14 6 Aint Ainz 7 pint Aout Master Any control mode output curve adapted Slaves PWM control with analogue source of set values Ain1 U output curve adapted Sis 3 1 Modulation level can be cascaded by adapting the x M output curve Slave n A e e e sjejels 7 Tr v v7 Y jefe 2 o T T Eee ee Fig 47 Connection diagram cascade operation master slave
44. l decreases Device shown Logical device address MODBUS Plug Fan Physical address 3 EPTED94Q EG Device type MODBUS ebm papst Standard Device status Ej Settings Input curve X1 P1 V o Parameter set 1 Parameter set 2 Input curve Y1 P1 rpm 700 p SES SEE Input curve X2 P1 v o F Input curve 2 Input curve Y2 P1 rpm 100 j Output curve j Set value ramp j Rotating direction j Fail save function o 0 Limits j Communication parameters j Motor Einstellungen j Braking j Load Save Information Actual values Device data Electronics a Motor p Fig 33 Inverse curve The inverse curve becomes clear if you compare the above Fig 32 with Fig 34 below Inverse input characteristic parameter set 1 Set value 700 rpm Input voltage OV 10V Fig 34 Example of inverse curve In practice applications are known with which you can use an inverse curve to guarantee that the fan operates at maximum level when there is a cable break from the analogue set value input signal 0 V 33 Application manual for EC Control ebmpapst 3 10 3 Output curve To connect additional slaves to a master fan the MODBUS terminal strip has an output Aout Depending on the speed or the PWM signal the output supplies a voltage signal which is always output The source of set values plays no role here vice shown Logical device address MODBUS Pl
45. meters Motor settings Motor derating Actual values Device data Electronics vi Fig 23 Winter functions The winter functions which are available only for MODBUS 5 00 and higher involve the following two options for ensuring the fan s function in winter m Sheding function Problem If ice forms on the impeller it can block the impeller The fan detects a block but still tries to start up In doing so however the impeller can get damaged If the shake loose function is enabled the fan attempts to resume its operation using a duty cycle configured by ebm papst If this does not work the fan tries to turn free in the opposite direction the maximum PWM fan level with which the fan will keep trying to shake loose If the shake loose function succeeds the fan rotates in the correct running direction with the originally desired set value If the impeller remains locked even after the sheding function the fan switches to normal locked behaviour While trying to shake loose a W sheding active warning is displayed m Motor pre heating Problem If the fan is directly started at a very low operating temperature for example 60 C this can lead to damage of the bearings since their lubricant is designed for temperatures no colder than 40 C Past a lower temperature limit for example 60 C set by ebm papst the motor pre heating is activated and heats the motor and the bearings of the fan The f
46. n The differential pressureapproach compares the static pressure before the inlet nozzle with the static pressure inside the inlet nozzle of an EC radial fan The air flow m h can be calculated from the differential pressure differential pressure of the static pressure in Pa according to the following equation V kx Ap or ip unt In the product catalogue Plug fans with EC motor from ebm papst you can find the following table for the k factore depending on size of the fan The table refers to backward curved centrifugal fans 48 Application manual for EC Control ebmpapst 25075 2 4013 25080 2 4013 page 7 28075 2 4013 28080 2 4013 280 page 9 31575 2 4013 31580 2 40130 page 11 35675 2 4013 35680 2 4013 355 148 page 13 15 40075 2 4013 40080 2 40137 400 0 page 17 45075 2 4013 45080 2 4013 450 240 page 19 64025 2 4013 64002 2 4013 page 21 64030 2 4013 64001 2 4013 560 348 page 23 At constant nozzle pressure constant control of the air flow is likewise possible The pressure measuring point to measure Ap is one or four locations at the circumference of the inlet nozzle Example for clarification BI Hall with footprint of 600m2 height of 3m BI Air volume of the space is thus 1 800m m Volume is to be replaced completely every 30 minutes by fans Air flow is thus 3600 ms h B Product used R3G450 AY86 01 k factor 240 Differential pressure is 3600 240 22
47. n Logical device address Physical address Device type Device status E Settings j Parameter set 1 Parameter set 2 07 Sensor settings j I Input curve 1 j Input curve 2 j Output curve j Set value ramp j Rotating direction j Fail save function Limits v Communication parameters j Motor Einstellungen Braking j Load Save Information I Actual values I Device data Electronics v set MODBUS Plug Fand 3 EPTED94Q MODBUS ebm papst Standard Current parameter set Source of parameter switch Internal parameter set Control mode P1 Min PWM P1 Max PWM P1 Motor stop enable P1 Controller Function P1 P Factor P1 I Factor P1 v Set all MODBUS Plug Fan 3 B EPTED94Q MODBUS ebm papst Standard Minimum sensor value Maximum sensor value Sensor unit Source sensor value Source for controller Function Controller Function P1 Controller Function P2 P Band P1 PA P Band P2 PA Set all Fig 56 Sensor settings pressure sensor zo sess Cooling Negative po 6 25 Q Reset fom QM Reset 4 2 1 Digital setting of values for air flow control such as day night switchover By changing the differential pressure in the nozzle the air flow can also be changed in accordance with the equation in Chapter 4 2 For the above example with the plug fan R3G450 AY86 01 a k factor of 240 and a 0 to 500 Pa pres
48. n between set value and actual value with a closed loop control is zero remaining control deviation e t 0 for gt If a difference with the closed loop control shown above appears the actual value is updated The proportional share P share and the integral share I share of the controller determine how accurate or fast the update is Application manual for EC Control ebmpapst 2 3 1 Proportional control system If the I share of a PI controller is zero one speaks of a pure P control system A P controller operates like an amplifier for the control deviation e In order to understand how the P factor in EC Control is calculated consider Fig 7 4 sensor range 9 Modulation level cr for low P factor control range cr gt cr for high P factor Zu 7 M uM ME high F pr P factor low P factor e 3 ON l l l l l l 4 7 l l l l l l l l l l l l I l l l l l I N l l l I I I I N I I I I I I I I I I I I I I I I I I I I I I I T 9 I I I I I I l l l I l 1 I I I 0 Actual min value Set value max value value sensor range sensor range Fig 7 P fact
49. of the two sensors serves as actual value m Average Ain1 Ain2 Average ofthe two sensor values serves as actual value Important for determining actual values using two sensors analogue ports are assigned 29 Application manual for EC Control ebmpapst evice shown Logical device address MODBUS Plug Fand Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard Device status EF Settings Minimum sensor value i Parameter set 1 Parameter sat Maximum sensor value Sensor settings en Input curve 1 Input curve 2 Source sensor value Ainzujainz Output curve Ain1UJAin1I Set value ramp Source For controller Function Ain2U Ain2I Maximum Aint Ainz i Average Aini Ainz Limits Controller function P2 Cooling Neg ative v Communication parameters Motor Einstellungen P Band P1 C 10 03 Braking LoadjSave P Band P2 C 200 Information Rotating direction Fail save function Controller function P1 Actual values Device data Electronics v Set e set al Qu Reset Fig 28 Determining actual values using two sensors 3 9 Set value input via the inputs Ain1 U and Ain1 I or via EC Control evice shown Logical device address MODBUS Plug Fand Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard Device status E Settings Set value 95 BE be Parameter set 1 Parameter set 2 Source of set value RS485 Bus Sensor settings Anal
50. og Ain Input curve 1 Rsdesj us O Input curve 2 Current PYWM e Save set value to EEPROM Output curve Set value ramp Current speed 234 Rotating direction Fal sava function Current parameter set Limits Active operating mode Communication parameters Motor Einstellungen Source of parameter switch L LoadjSave Current controller Function B Information i Source For controller Function Actual values Device data Status Electronics v set v Set all QM Reset Fig 29 Source of set values analogue or RS485 30 Application manual for EC Control ebmpapst External source of set values has to be connected to KL for example potentiometer In doing so terminal 5 can be used as an auxiliary voltage source with 10 VDC 10k potentiometer linear Fig 30 Terminal strip ports for set value input Connections 4 and 6 in Fig 30 are the analogue ports for the set value input Here as with the actual value specification there are two different inputs m Aint U analogue port 1 terminal 4 for 0 to 10V set value device for example potentiometer m Aini analogue port 1 terminal 6 for 4 to 20mA set value device 3 10 Curves 3 10 1 Input curve 31 Application manual for EC Control ebmpapst evice shown Logical device address MODBUS Plug Fand Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard Device status Settings Input curve X1 P1 V
51. or The actual value is measured by a sensor The sensor itself is limited by its minimum and maximum value also called sensor range The range is specified by the sensor itself and has to be entered in EC Control The desired set value is specified in analogue form terminal Ain1 U or Ain I or digitally via EC Control The difference between the actual value and the desired set value for which a full modulation of the motor yields 100 is called control range Control range and P factor are interdependent They are different ways of depicting the same value The P factor can be calculated from the sensor range and control range sensory Sensory sensor range P faktor x 100 x 100 1 control range control range The P factor can be entered via EC Control The following applies BI too high of a P factor can lead to continuous vibrations of the closed loop With the P factor the P share portion of the absolute deviation can be achieved The control deviation e is the difference between the configured set value and the current actual value which is continuously updated by the sensor trol deviati t P share P NN 2 sensor range Application manual for EC Control ebmpapst If you are now using equation 1 in 2 you will get sensor range control deviation e t control deviation e t x 100 x control range sensor range control range x 100 3 P share If control deviation e t 2 control range
52. or cleaning and de icing the exchanger rrrsresvrnrenrnnrrvrrvrrvanvanrenrenrrnrrvrrnrsnasnenrenrrnrrnrrnrsnasnesnennenenne 45 4 2 Configuration notes for air flow control in air conditioning unitsn eeseessesss 48 4 2 1 Digital setting of values for air flow control such as day night switchover sene 90 4 2 2 Analogue setpoint input during air flow control nnns 52 4 3 Temperature control any control characteristic with temperature sensor 53 KONNE 58 Application manual for EC Control ebmpapst Revision history Date Version Change modification 31 03 2011 First version of the application manual German 28 06 2011 09 09 2011 Detail improvement 27 09 2012 Revising for MODBUS 5 and EC Control 2 10 13 12 2012 Small corrections Formatting and references links Application manual for EC Control ebmpapst 1 Safety instructions Read through the manual and the application manual carefully before you begin work with EC Control It can lead to faults if warnings and these instructions are not followed Make sure the manual is kept within reach at the place where the software is in use If the software is sold or passed on to third parties installation instruction and manual have to be passed on as well For information on potential dangers and their prevention the installation instructions can be reproduced and handed out The soft
53. ower limit Application manual for EC Control ebmpapst Max power W P max DE f Temperature C OV a be er I3 14 T Fig 39 Derating diagram This parameter does not necessarily have to be configured If you have no information about the fan s output limit depending on the temperature simply ignore this parameter s can be seen in the diagram in Fig 39 the maximum power input depending on the module temperature and or motor temperature can be configured The process depending on the motor temperature is now described by way of example T2 was set to 100 C and T4 to 130 C Fan is running with maximum output P max e g 1191W Motor temperature increases to 100 C 12 Power input is reduced Motor temperature increases further to 110 C Power input is further reduced Motor temperature reaches 130 C T4 Power input is limited to maximum output with limitation end P max DE e g 1006W upon reaching 130 C 14 the power input stays constant at e g 1006W P max DE 36 Application manual for EC Control ebmpapst 3 11 Run monitoring MODBUS 4 00 or higher has the option of an alarm relay allow to release if a minimum rotational speed is not reached This situation is also shown as a warning on the MODBUS warning bit at the same time it is signalled using the relay evice shown Logical device address MODBUS1 3 Physical address 3 COM2 Device type MODBUS ebm papst Standard Dev
54. r 3 Application manual for EC Control ebmpapst Networking the MODBUS node is shown in Fig 16 and in Fig 17 see pages 19 20 The connection diagram Fig 16 includes the following features simple twisted pair wire ebm papst recommends using a simple twisted pair wire A twisted pair wire is a cable with which the leads of a pair of leads are twisted to one another Through the twisting such cables provide protection from symmetrical faults Common wire The configuration of a joint data line so called common lines is recommended in the MODBUS specification expressly in order to work against transmission problems In doing so the GND potentials of the interface components are connected All systems thus have a common reference potential Line termination In the circuit diagram below in addition to common lines line terminations in the form of resistors are also used in order to minimize reflections on the ends of the line and thus obtain a better signal quality Line termination resistors are at the beginning and the end of the bus between DO RSB and D1 RSA However more than two resistors 1xLT at the beginning and 1x LT at the end of the line may not be installed 120Q LT resistors with an output of 0 5W are recommended The connection diagram Fig 17 includes the following features shielded twisted pair line For operation in areas prone to failure MODBUS org recommends using shielded twisted pair cables The shi
55. r value Maximum sensor value Sensor unit Source sensor value Source for controller Function Controller Function P1 Controller Function P2 P Band P1 BAR P Band P2 BAR v Set all QM Reset Fig 42 Sensor settings for temperature sensor of the master evice shown Logical device address Physical address Device type E Settings Parameter set 1 Parameter set 2 Sensor settings Input curve 1 Input curve 2 Output curve Set value ramp Rotating direction Fail save function Limits Communication parameters Motor Einstellungen Load Save E Information Actual values Device data Electronics a Motor z MODBLIS Plug Fan 3 EPTED94Q MODBLIS ebm papst Standard Set value BAR Source of set value Save set value to EEPROM Current sensor value BAR Current speed Current parameter set Active operating mode Source of parameter switch Current controller function Source for controller function Status G fiz IRsass Bus m R5485 Bus ebmpapst Step 3 Set value input of the master Fig 43 Setting input of the master The slaves obtain their set value as a 0 to 10V signal through port Aout of the master via their terminals Aint U and GND The output curve of the master is set as in Fig 44 The characteristic curve is linear and 39 Application manual for EC Control ebmpapst evice shown Logical device address MODBUS Plug Fand L Phys
56. racteristic 4 then the motor would run at the same temperature actual value with a very low speed 96 Application manual for EC Control ebmpapst Control range 1 to 4 EE E n EE Duty cycle 100 50 f 20 HH Temperature 0 20 25 30 40 60 C Fig 67 Four example control characteristics for different control rangese 57 ebmpapst Application manual for EC Control Keyword index Address setup rrrvrrnrrrnrennrarnrnsvennvennvennnnnnen 17 MM 24 Mer 7 30 EE 7 30 gg 7 28 41 MU 7 28 Air flow control sorrrasvrrnrrsvorvrrnrosvornnnnvennn 48 Air conditioning units 48 Alarmi NER 21 37 analogue setpoint input 52 Dol ne ren 7 34 BI ee 7 23 48 Cascade operation 43 closed 00 8 Closed loop speed control 13 Common wire 18 Control characteristic 53 56 control deviation e eeseeesse 8 Control function esee 13 control range eseeeeeneennnee 10 COMO NANG se 55 57 Cooling negative eeseessss 13 DO EE 7 18 BE EE 7 18 Day night switchover 51 Differential pressure
57. riable x approach the target curve The following definitions apply for Fig 5 and Fig 6 Control variable set value Control deviation Controller output variable Correcting variable Disturbance variable Control variable actual value Feedback variable x N lt co s Application manual for EC Control ebmpapst Mm ME DE mE mE 2222222727277 pr mm mm mu Actuator Rule NE element Line L o i M o L A l Iu AA Controller Comparison element Control device Measuring equipment In general controller output variable u and correcting variable y are not differentiated but spoken of collectively as correcting variable y The influence of the measuring device is also often neglected so that the feedback variable r is frequently designated as the control variable actual value x r Fig 5 Block diagram of a control system This results in the following simplified closed loop Z PI controller NE Ed OR CL sensor control ra Fig 6 ebm papst closed loop control Typical measuring devices for fans are sensors for pressure air flow and temperature The set value w can be set in analogue form or specified digitally via EC Control software A PI controller has the task of compensating for the control deviation and thereby achieving set value actual value 2 3 Pand l factor Ideally the deviatio
58. s 15 Application manual for EC Control ebmpapst Thus it always applies that defined PWM modulation limits Min allowed PWM lt Min PWM lt modulation level lt Max PWM lt Max allowed PWM evice shown Logical device address MODBUS Plug Fan Physical address 2 EPTED94Q Device type MODBUS ebm papst Standard Device status B Settings Current parameter set fi dt Parameter set 1 v Parameter set 2 Source of parameter switch R5485 Bus v i inka Internal parameter set Input curve 1 Parameter Set 1 m EN HOS Da Re Control mode P1 Closed loop speed control v PU Output curve Rotating direction Fail save Function Max PWM P1 ro P Ones Motor stop enable P1 v IL oi Communication parameters Motor Einstellungen Controller Function P1 Cooling Negative Braking Load save P Factor P1 50 19 Information I Factor P1 Actual values Ee 6 25 Device data Electronics Motor p v set f set all Qi Reset Fig 14 Minimum and maximum PWM signal 16 Application manual for EC Control ebmpapst 3 Setting options and basic functions via MODBUS 3 1 Networking and assigning addresses to MODBUS nodes The requirement for a problem free network operation for the fans is the correct address setup of the devices In doing so there are some basic things to note Address setup within aMODBUSsegment must be unique An address may only be used once In other
59. settings i Motor derating j Winter Functions Load Save B Information Actual values Device data Electronics El Fig 37 Output curve impulses per revolution output Aout Use of this function requires a fan whose hardware supports this However attention should be given to choosing a reasonable number of pulses For a very slowly rotating fan 255 pulses may be required The faster the fan rotates the fewer pulses are required Since the output frequency of the impulses per revolution is limited by hardware with 255 pulses set and a high fan speed it could happen that the output puts out fewer pulses than anticipated This function is possible only for specific fans 3 10 5 Motor derating evice shown Logical device address MODBUS1 3 Physical address 3 COM2 Device type MODBUS ebm papst Standard p Device status El Settings Maximum allowed rating W hr Parameter set 1 I Parameter set 2 Maximum rating hesg tti rt o3 scii ee Max power at derating end jd Input curve 1 o Input curve 2 Modultemperature derating start Output curve o o Set value ramp Modultemperature derating end hr Direction of rotation i Motortemperature derating start j Fail safe function o 0 Limits po Motortemperature derating end Pom Communication parameters Motor settings j Winter Functions Load Save Information Actual values Device data Electronics El Fig 38 Motor p
60. sure sensor results from the curve in Fig 57 For the ratio of differential pressure to sensor voltage this applies 500 Pa corresponds to a sensor voltage of 10V 225 Pa corresponds to a sensor voltage of 4 5V see Fig 57 dotted line 0 Pa corresponds to a sensor voltage of 0 V m a differential pressure of m a differential pressure of m A differential pressure of 50 Application manual for EC Control ebmpapst Differential pressure in Pa 100 700 1300 1900 2500 3100 3700 4300 4900 Volume flow in m h Fig 57 Pressure volume flow rate curve After all settings from Chapter 4 2 have been made you can now enter the set value of the differential Control Through maintaining a constant pressure of 225 Pa in the nozzle a constant volume is guaranteed here 3 600m h Device shown Logical device address MODBUS Plug Fand Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard B Settings Set value PA 225 Parameter set 1 Parameter set 2 Source of set value RS485 Bus v P RU Re Save set value to EEPROM Iv PO Input curve 1 Input curve 2 Current sensor value PA 225 66 Output curve Set value ramp Current speed 583 Rotating direction j I Eal save function Current parameter set I Limits io Active operating mode v Communication parameters Motor Einstellungen Source of parameter switch o Braking Load Save Current controller Function ER Informa
61. ter set 1 Parameter set 2 Input curve Y1 P1 o Slave fans i Sensor settings Input curve X2 P1 V i Input curve 1 ho Input curve 2 Input curve Y2 P1 100 I m Output curve Set value ramp Direction of rotation Fail save function Limits Communication parameters Motor Einstellungen Braking Load Save Information Actual values Device data Electronics Motor z v Set v Set all QM Reset Fig 45 Settings for slave fans Fig 46 on the next page shows the connection diagram from the master and its slaves in a refrigeration plant m Fans are arranged in the shape of a star m he set value is given from the master via the output Aout as a 0 to 10V signal on a patch panel To this distributor the source of set values Ain U of the corresponding slaves is connected m Control mode master Closed loop sensor control Advantage of this star arrangement compared to serial wiring Series connection m n case of defects just the corresponding device can be replaced very quickly and without complications without having to break apart the system It is however problematic at great distances because significantly more lines have to be used Alternatively to the pressure sensor used in the example there are also the 2 wire sensors which do not require a GND connection Their output signal can be a current signal with 4 to 20mA In this case the sensor on the actual value
62. tion Actual values Device data Status Source for controller Function Electronics Motor p v set v Set all Qu Reset Fig 58 Digital setting of values parameter set 1 differential pressure 225 Pa enter set value for day switchover Optionally a second parameter set can be defined for example for a so called day night switchover After the sensor settings were made you must proceed as follows to store set values for P1 and P2 clicking Set is necessary after each step EHREESE amp c Ce D 3 O Q pum Q 3 D or D 3 QD D r IND Q O lt Q r D D Q 3 Q 3 D e D 3 o D r NO Q 2 Ce 3 Q N D WM D 2 Q o o D D TI te C1 co 91 Application manual for EC Control ebmpapst evice shown Logical device address MODBUS Plug Fand Physical address 1 EPTED94Q Device type MODBUS ebm papst Standard Device status ge Settings Current parameter set 2 Parameter set 1 Parameter set 2 Source of parameter switch R5485 Bus v v Sensor settings Pod Internal parameter set Parameterset2 3 Input curve 1 P Parameter Set 2 Input curve Control mode P2 Closed loop sensor control Output curve Set value ramp Min PWM P2 s Rotating direction F il save Function Max PWM P2 100 j 9 S Motor stop enable P2 v Communication parameters Motor Einstellungen Controller Function P2
63. ug Fand Physical address 3 EPTED94Q Device type MODBUS ebm papst Standard Device status EH Settings Function of analog output Current speed Parameter set 1 Parameter set 2 Output curve X1 rpm 100 8 Sensor settings Output curve Y1 V n Pom Input curve 1 i P Input curve 2 Output curve X2 rpm 870 Output curve i Set value ramp Output curve Y2 V fio i Rotating direction i Fail save function Limits i Communication parameters i Motor Einstellungen j Braking i i Load Save Information Actual values Device data Electronics subitem is in the Settings menu item see Fig 35 Here the analogue output function indicates whether the x axis represents the speed or the PWM signal The output curve would appear as follows Actual speed PWM signal OV 100 rpm 870 rom 0 100 Fig 36 Output curve 34 Application manual for EC Control ebmpapst 3 10 4 Analogue output Impulses per revolution evice shown Logical device address MODBUS1 3 Physical address 3 COM2 Device type MODBUS ebm papst Standard Device status Settings Function of analog output Speed monitoring pulses Parameter set 1 j I Parameter set 2 Pulses per revolution o I Sensor settings j Input curve 1 j Input curve 2 j Output curve Set value ramp P Direction of rotation j Fail safe function o Limits j Communication parameters j Motor
64. uration of ebmBUS and MODBUS fan networks In particular EC Control allows the following activities Programming of fan parameters such as control mode set value and control parameters Changing fan addresses Reading out fan parameters such as the actual speed the serial number and the production date Reading out fault status and fault memory Monitoring of installations including the possibility of reporting failures by e mail Administration of several installations within a program installation useful for service technicians Support for RS232 RS485 USB RS485 Bluetooth RS485 and Ethernet RS485 interface converters Simultaneous monitoring of ebmBUS and MODBUS based system components requires at least two interface converters This application manual is a supplemental document to the manual It should help through real world examples to use the range of functions of EC Control V 2 1 completely Attention The application manual contains screenshots of EC Control V 2 1 Illustrations of EC Control can consequently deviate from your version Fans with at least MODBUS protocol Version V3 02 Version 2010 09 01 or newer were used Devices with older firmware do not offer all features What does EC Control V 2 1 look like The program has the following structure Device shown U u gt S l Logical device address MODBUS Plug Fand Physical address 2 EPTED94Q AD Device type MODBUS ebm papst Standard Device status B Settings Set
65. ware must be handled in accordance with national legislation regarding work safety N Influence through electromagnetic radiation is possible If unacceptable emission intensities occur when the fan is installed the user must implement suitable shielding measures Make sure to avoid accidentally switching on a fan This is definitely possible in case of careless use of EC Control This can cause serious and even fatal health hazards Operate the fans always with guard grille and follow the previous safety precautions This software was not designed for use in safety critical facilities This software is not real time compatible Proper use BI Control and diagnosis of ebm papst fans with an RS485 based ebmBUS V3 or an ebm papst standard profile Modbus Improper use Operating the interface converter on interfaces not designed for such use Operating the interface converter on voltages greater than that stated in the instructions Improper use of the interface converter cable Use in extremely humid environments heavy rain or high humidity Operation in explosive atmosphere Commissioning fans via software when their safety features are not active Deactivation of safety features of the fan firmware via improper setting of parameters Using the software in installations in which safety is critical Application manual for EC Control ebmpapst 2 Basis and term definitions for EC Control EC Control enables visualization and config
66. words no double assignments may be made The fans have the address 1 by factory settings As a first step during installation this address is to be set automatically or manually Device shown ee eee Logical device address MODBUS Plug Fand Physical address 3 EPTED94Q A Device type MODBUS ebm papst Standard Device status Settings Device address 3 Pom Parameter set 1 Parameter set 2 Sensor settings Input curve 1 Input curve 2 Output curve Set value ramp Rotating direction Fail save function o Limits Communication parameters Motor Einstellungen Braking Load Save E Information Actual values Device data Electronics Q Reset Fig 15 Changing device address manually With MODBUS RTU an address range of 1 to 247 is provided However if you are working in a network by definition it is possible to handle four communications paths or subnets at the same time The address space of a subnet can in this way be multiplied The subnets can be defined via the interface converter and are designated correspondingly The example below shows that the communications path is a part of the address Subnets and communication paths e RS232 RS 485 1 to 247 e Ethernet RS485 1 to 247 e Bluetooth RS485 1 to 247 would lead to the following physical addresses e 1 24 RS232 Converter 1 e 1 247 QEthernet Converter 2 e 1 247 QBluetooth Converte

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