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ZIEHL-ABEGG Icontrol FXDM Series, Руководство по эксплуатации

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10

Menu tables

10.1

Menues of operating modes

Mode

1.01
1.02

2.01 
2.03
2.04

2.02

2.05

3.01 
3.02 

3.03 
3.04

4.01
4.02 
4.03

5.01
5.02

6.01 

User Setting

Parameter

Factory setting ***

Start 

Motor

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

PIN input

- - - - -

- - - - -

- - - - -

- - - - -

- - - - -

- - - - -

- - - - -

- - - - -

- - - - -

Language

GB

GB

GB

GB

GB

GB

GB

GB

GB

Reset

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

Mode

1.01
1.02

2.01 
2.03
2.04

2.02

2.05

3.01 
3.02 

3.03 
3.04

4.01
4.02 
4.03

5.01
5.02

6.01 

Icontrol

2.37

2.37

2.37

2.37

2.37

2.37

2.37

2.37

2.37

SN:

000005-

E45536

000005-

E45536

000005-

E45536

000005-

E45536

000005-

E45536

000005-

E45536

000005-

E45536

000005-

E45536

000005-

E45536

d1333 B13

01/04/12 01/04/12 01/04/12 01/04/12 01/04/12 01/04/12 01/04/12 01/04/12 01/04/12

Info

Setting direct

1.02 = 

50.0 Hz

E1-E2 actual

-2.4 

°

C

Control value

2.04 = 

30.0 

°

C

12.0 bar

22.6 

°

C

E1 Actual

30.0 

°

C   30.0 

°

C   30.0 

°

C  

10.0 bar
-88.7 

°

C

10.0 bar
-88.7 

°

C

88.7  Pa 712 m

3

h  0.45 m/s

E2 Actual

- - - - -

2.04 = 

30.0 

°

C

- - - - -

30.0 

°

C  

- - - - -

10.0 bar
-88.7 

°

C

- - - - -

4.02, 

4.03 = 

21.0 

°

C

- - - - -

5.02 = 

21.0 

°

C

- - - - -

Setpoint1

20.0 

°

C 

5.0 

°

C    0.0 

°

C 

12.0 bar

35.0

°

C

12.0 bar

35.0

°

C

100 Pa 530 m

3

h  0.50  m/s

Setpoint control

4.02, 

4.03 = 

100 Pa

5.02 = 

530 m

3

h 

Frequency

1.01 = 

0.0 Hz

0.0 Hz

0.0 Hz

0.0 Hz

0.0 Hz

0.0 Hz

0.0 Hz

0.0 Hz

0.0 Hz

Motor current

1.01 = 

0.0 A

0.0 A

0.0 A

0.0 A

0.0 A

0.0 A

0.0 A

0.0 A

0.0 A

Set external1

1.01 = 

0.0 Hz

Msco

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

Setting

Set Intern1

1.01 = 

50.0 Hz

Set Intern2

1.01 = - - 

- - -

Setting direct

1.02 = 

50.0 Hz

Setpoint1

20.0 

°

C 

5.0 

°

C    0.0 

°

C 

12.0 bar

35.0

°

C

12.0 bar

35.0

°

C

100 Pa 530 m

3

h  0.50  m/s

Operating Instructions 

Icontrol

 

–

 model series FXDM

Menu tables

L-BAL-E036-GB 1422 Index 008

Part.-No. 00154773-GB

73/96

Содержание Icontrol FXDM Series

Страница 1: ...Icontrol FXDM Frequency inverter for 3 fans Operating Instructions Software version D1334A Part No B1000AA4 from version 2 37 L BAL E036 GB 1422 Index 008 Part No 00154773 GB english...

Страница 2: ...al installation 11 5 1 Safety precautions 11 5 2 EMC compatible installation 11 5 2 1 Interference emission and installation of cables 11 5 2 2 Motor cable 11 5 2 3 Control cables 11 5 2 4 Harmonics c...

Страница 3: ...9 1 2 Setting for operation 1 01 25 9 1 3 Base setup 1 02 26 9 1 4 Setting in operation 1 02 27 9 2 Temperature control 2 01 2 05 28 9 2 1 Basic setting 2 01 2 05 28 9 2 2 Settings for operation mode...

Страница 4: ...maintain momentary modulation value Function 14D 57 9 10 3 Con guration of analog inputs E1 and E2 58 9 10 3 1 Signal adaption E1 and E2 58 9 10 3 2 Inverting analog inputs E1 E2 59 9 10 4 Function an...

Страница 5: ...tension and version of software 87 14 Enclosure 88 14 1 Technical data 88 14 1 1 Versions type lines Icontrol 90 14 1 2 Max loading dependent on clock frequency line voltage and ambient temperature 90...

Страница 6: ...unauthorized repairs or modi cations 1 4 Copyright These operating instructions contain copyright protected information The operating instructions may be neither completely nor partially photocopied r...

Страница 7: ...accidents and the corresponding national as well as regional and in house regulations Personnel to be trained or instructed and apprentices are only permitted to work on the device under the supervisi...

Страница 8: ...genuine wearing parts genuine accessories from ZIEHL ABEGG Th ese parts were speci cally designed for the device There is no guarantee that parts from non original sources are designed and manufactur...

Страница 9: ...posure to extreme heat and cold Avoid prolonged storage we recommend a maximum of one year consult the manufacturer before starting if stored for longer 3 6 Disposal recycling Disposal must be carried...

Страница 10: ...installing several devices on top of each other the danger of reciprocal heating exists This layout is only then permissible when the air suctioned from the upper unit does not become warmer than the...

Страница 11: ...e and to ensure compliance with the radio interfer ence level the connecting leads must be kept as short as possible both in the motor terminal box as well as in the controller Spacing between supply...

Страница 12: ...onnected to terminals PE L1 L2 L3 and N depending on type Here it must be strictly observed that the mains voltage lies within the allowable tolerance speci cations Technical data and nameplate af xed...

Страница 13: ...this a programming is necessary IO Setup Enable ON OFF Attention When switching on the motor plus existing release under certain circumstances this can occur under full modulation of the controller 5...

Страница 14: ...technical data connection diagram It is not permissible to connect outputs of several devices to each other 5 9 Voltage supply for external devices 24V GND There is an integrated power supply for ext...

Страница 15: ...ermissible to connect inputs of several devices to each other 5 13 Relay outputs K1 K2 Various functions can be allocated to the relay outputs K1 and K2 IO Setup function and inverting relais outputs...

Страница 16: ...ment for control systems ventilation technology The information sheet Network structure of MODBUS R TIL08_01 contains detailed information about MODBUS 5 14 3 LON Bus system is possible via add on mod...

Страница 17: ...waiting period before renewed switching on amounts minimum 90 seconds Switch position 0 Switch OFF supply line lockable AUTO Operation Control 100 Operation Bypass controller without supply Technical...

Страница 18: ...c display 5 digit 2 Moon Symbol for set point 2 3 Current derating active 4 Alarm Symbol fault indication 5 Brake motor or motor heating active 6 Fire Symbol heating operation 7 Derating power reducti...

Страница 19: ...nding device type Speed rpm Frequency Hz Fanlevel By pushing the P key one reaches the menu item START P ESC Motor OFF ON One moves up and down within the menu group using the arrow keys In the menu p...

Страница 20: ...vel is enabled at rst i e not protected by the PIN 0010 see Controller Setup PIN protection OFF If PIN protection is activated ON the service menu remains enabled after input of PIN 0010 as long as on...

Страница 21: ...external manual operation is possible by 0 10 V 0 20 mA 4 20 mA Signal at terminals E2 and GND Place internal Jumper E2 1 and E2 2 for E2 Analog In in correct position E2 Con guration in base setup Fo...

Страница 22: ...nsor TF E2 Temperature control depending on outdoor temperature preset set point 5 0 C P band 20 0 K 2 03 Sensor TF E1 Temperature control with additional functions shutter and heating 2 04 1x Sensor...

Страница 23: ...the device after pressing the Esc hotkey combination Settings for U f characteristic can only be made when no motor modulation is present This is the same also for the setting of Mode Switch over betw...

Страница 24: ...ec tion 0 0 V A min Level min 400 V MotorRa tedVolt OTM 00010 56 11 GB Lan guage 0 0 Hz Set exter nal1 OFF Min Speed 2 ext Fault OFF E2 Func tion OFF Save User Setup 10 0 V A max Level max 50 0 Hz Edg...

Страница 25: ...Setup Factory setting 0 10 V 9 1 2 Setting for operation 1 01 Setting Setting Set Intern1 Set Intern1 Setting range manual speed setting Min Speed Max Speed Factory setting 50 0 Hz Setting Max Speed S...

Страница 26: ...election 0 1 2 3 4 5 Factory setting 0 Number steps 0 In the factory setting 0 without steps the output frequency can be set directly with the keys setting in operation Number steps 1 2 3 4 5 The freq...

Страница 27: ...n operation 1 02 Setting range 0 setting nummber steps Factory setting 0 When setting a Minimal speed OFF the output is not switched off in step 0 Min Speed Min Speed basic speed only when needed Sett...

Страница 28: ...tting Step adjust PIN 0010 9 2 Temperature control 2 01 2 05 9 2 1 Basic setting 2 01 2 05 Base setup Base setup Mode Mode Mode selection e g 2 01 E1 Analog In E1 Analog In In all group 2 operating mo...

Страница 29: ...setting under E1 2 03 Temperature control with pre programmed additional functions heating shutter temperature monitoring 2 04 Temperature control with 2 sensors Comparison with control to higher val...

Страница 30: ...tivation by menu Manual mode or external contact at digital input IO Setup Setting range 0 Max Frequency Motor Setup Factory setting 50 0 Hz For information about deactivated regulation the adjusted v...

Страница 31: ...ample for triggering a shutter servomotor At factory setting 0 K synchronous operation The analog output is factory set to increasing activation during increasing temperature Reprogramming to Heating...

Страница 32: ...ng hysteresis of the relay Setting range 0 10 K Factory setting 1 0 K Kelvin Temperature variation with factory setting 9K in IO Setup e g for controlling a Heating If the ambient temperature is lower...

Страница 33: ...sage is generated via the alarm symbol in the display In addition Lmt E1 min is displayed alternately with the actual value for the minimum alarm and Lmt E1 max for the Maximum alarm An external messa...

Страница 34: ...of Setpoint 1 0 10 V 0 100 sensor measuring range External manual operation via external signal 0 10 V Function 2E Switch over between settings on the device and external manual operation via digital...

Страница 35: ...and Min Speed Min Speed basic speed only when needed Setting range OFF Shutdown Freq Motor Setup Max Speed Factory setting OFF Max Speed Max Speed speed limitation only when needed Setting range Max F...

Страница 36: ...band I Actual value Functional diagram for Mode 3 02 and 3 04 Idealized principle diagram nM 50 100 I Min 0 Max 100 35 C S 7 K R 42 C 09 05 2007 v_diagramm_302_304_c vsd nM Motor speed S Setpoint R Pb...

Страница 37: ...ications External setpoint Function 1E by external signal 0 10 V instead of Setpoint 1 0 10 V 0 100 sensor measuring range External manual operation via external signal 0 10 V Function 2E Switch over...

Страница 38: ...peed only when needed Setting range OFF Shutdown Freq Motor Setup Max Speed Factory setting OFF Max Speed Max Speed speed limitation only when needed Setting range Max Frequency Motor Setup Min Speed...

Страница 39: ...ide temperature Info Set point control T Band SA T Band SA Temperature range in which the setpoint change continiously with outside temperature T Start SA T Start SA Setpoint reducing will start below...

Страница 40: ...ctory setting 530 m3 h Setpoint2 Setpoint2 Setting Setpoint 2 e g reduced value for night operation Switch over Setpoint 1 2 by external contact as long as no allocation is carried out Display IO Setu...

Страница 41: ...ontrol T Band SA T Band SA Temperature range in which the setpoint change continiously with outside temperature T Start SA T Start SA Setpoint reducing will start below this outside temperature P Min...

Страница 42: ...e Longer control times and more stable control Setting range in measuring range of sensor Factory setting 0 50 m s Min Speed Min Speed basic speed only when needed Setting range OFF Shutdown Freq Moto...

Страница 43: ...1234 Opening setting if set protection ON Controller Setup PIN 9090 Restore user setting PIN 9091 Save user setting corresponds function Save user setup ON Controller Setup PIN 9095 Restore factory se...

Страница 44: ...sured on the sensor 1 Depending sensor type in mbr m3 s m s Pa bar m3 h C V mA etc E2 Actual For operation with two sensors display for 2 actual If function not active display Setpoint1 Display of the...

Страница 45: ...ividually made device con gurations User Setting can be saved here corre sponds to PIN 9091 By entering PIN 9090 the individually made device con gurations can be reestablished Start PIN Input Informa...

Страница 46: ...stallation of the device as a pure P Controller in refrigeration and air conditioning technology For operation mode speed controller 1 01 without function Msco OFF factory setting If no Min speed is a...

Страница 47: ...Example group 2 via 0 10 V F out Hz 16 05 2012 v_fx_2nd_group_analog_out_diagr vsd 1 2 3 4 5 6 7 8 9 10 Analog In 1 40 35 30 25 20 15 10 5 2 4 6 8 10 12 14 16 18 20 0 10 V 0 20 mA 10 20 30 40 50 60 70...

Страница 48: ...N value Group 4 ON value Switch on value for Group4 Setting range 0 100 Factory setting 85 OFF Value Group4 OFF Value Group4 Switch off value for group4 Setting range 0 100 Factory setting 80 nmin at...

Страница 49: ...roup is reduced to an adjustable minimal value nmin at Group2 Then the speed of the rst group increases to maximum within the remaining range If a third group is programmed up to switch on point ON Va...

Страница 50: ...lowly bigger faster KI I component accuracy correction time Setting range 0 200 bigger faster smaller more slowly KD D component More D component causes more stability by a clean actual value signal w...

Страница 51: ...t E2 5A Group control Controller Setup second group 6A Control output 2 increasing modulation at actual value Set cooling only mode 2 03 temperature controller with additional functions 7A Control out...

Страница 52: ...D Switch over Intern Extern 7D Switch over automatic control Speed manual 8D Switch over control function e g heating cooling 10D Reset 11D Setting Max Speed ON OFF 12D Motorheating ON OFF not for 1 v...

Страница 53: ...contact factory setting D1 Inverting OFF Indication during opened contact D1 Inverting ON Actual value Alarm symbol for indication External fault 9 10 2 4 Limit ON OFF Function 3D The value for Limit...

Страница 54: ...Set Intern1 at opened contact Set Intern2 at closed contact D1 Inverting ON Set Intern1 at closed contact Set Intern2 at opened contact Frequency Operation with Set Intern2 is signalized by the moon...

Страница 55: ...Extern at opened contact 9 10 2 8 Automatic control speed manual Function 7D mode 2 01 Switch over between automatic control to set target value depending on the activation Setpoint1 Setpoint2 and the...

Страница 56: ...normal operation interrupted Reset after fault by short close For Inverting ON reverse function 9 10 2 11 Setting Max Speed ON OFF function 11D The value for Max Speed adjusted in menu Settings is act...

Страница 57: ...ion of the regulating unit responds Motorheating The activated motor heating is indicated alternating with the actual value 9 10 2 13 Direction of rotation Function 13D Switch over clockwise rotation...

Страница 58: ...odus E1 Modus 0 E1 min E1 max without function factory setting 1 Offset turn 2 signal range 3 Hysteresis setting On Off function depending on the version of the software available E1 Min E1 Min Settin...

Страница 59: ...9 10 0 10 V 29 09 2009 v_e1_modus_3_hz vsd 1 Modus 3 E1 min 0 E1 max 100 50 2 40 30 20 10 3 E1 min 30 E1 max 80 E1 min 0 E1 max 80 E1 min 20 E1 max 100 Modus 3 Example E1 min 30 E1 max 80 Over approx...

Страница 60: ...n the allocated function Fundamentally the relays can only become operative if the electronic s voltage supply is functioning At least 2 current phases must be present K1 Inverting K2 Function K2 Inve...

Страница 61: ...3K Ext Fault at digital input for external fault 1 0 4K Over or falling below limits for modulation 1 0 5K over or falling below limits for input signal E1 1 0 6K over or falling below limits for inp...

Страница 62: ...n OFF K3 Inverting K4 Function OFF K4 Inverting 9 10 6 Networking via MODBUS It is possible to network several devices with each other The device uses the MODBUS RTU as the protocol for the RS 485 int...

Страница 63: ...ulation max Setting range Modulation max Modulation min Max Speed The indication is delayed by the time set in Display delay Level max Level Delay Time delay exceeding Level max up to indication by re...

Страница 64: ...ding the signal E1 max If the signal exceeds the set value E1 max this is reported until the set value minus hysteresis has been undercut once again Lmt E1 max Lmt E1 Hyst E1 Hysteresis Hysteresis adj...

Страница 65: ...F point Actual value by hysteresis under the switch on point Offset 2 for alarm in case of an undercutting of the max deviation between actual and target Switch ON point actual value Setpoint offset S...

Страница 66: ...f curve Attention Settings for U f characteristic may only be made when no motor modulation is present Edgefrequency Edgefrequency The maximum output voltage is attained during break edge frequency Ad...

Страница 67: ...near curve pre programmed In the case of linear characteristic curves the motor achieves full torque throughout the entire speed range For fans operation a optimal speed control is generally achieved...

Страница 68: ...arrow on the fan housing We will not be responsible under any circumstances for warrantee for damage caused because the direction of rotation is wrong When connected in accordance with the connection...

Страница 69: ...end on the centrifugal force of the motor and the conditions in the installation 2 Special function brakes before stop as soon as modulation 0 The motor does not run out up to stop The motor is braked...

Страница 70: ...isconnection The quench modus is available to prevent this from happening quench synchronizing the rotating magnetic eld generated by the frequency inverter with the momentary speed of the triggered m...

Страница 71: ...temperatures Derating Alarm In case of a temperature increase above the predetermined threshold value for capacitors and heat sink Diagnostics menu the level control is linearly reduced until the stat...

Страница 72: ...Pband D Speed controller setting signal P P controller control deviation Setting depending on device type in Hz rpm Suppression1 Factory setting no suppression active OFF Suppression1 Range1 min Sett...

Страница 73: ...Setting direct 1 02 50 0 Hz E1 E2 actual 2 4 C Control value 2 04 30 0 C 12 0 bar 22 6 C E1 Actual 30 0 C 30 0 C 30 0 C 10 0 bar 88 7 C 10 0 bar 88 7 C 88 7 Pa 712 m3 h 0 45 m s E2 Actual 2 04 30 0 C...

Страница 74: ...alogOut 2 03 0 0 K Pband AnalogOut 2 03 2 0 K Min AnalogOut 2 03 0 Max AnalogOut 2 03 100 OffsetDigitalOut 2 03 1 0 K Hyst DigitalOut 2 03 1 0 K Alarm Minimum 2 03 0 0 C Alarm Maximum 2 03 40 0 C T Ba...

Страница 75: ...gerant 3 02 3 04 R503 E2 K Factor E2 Min 4 03 35 0 C E2 Max 4 03 65 0 C E2 Decimals 4 03 1 E2 Unit 4 03 C E2 Offset 2 04 0 0 K 0 0 K 0 00 bar 0 0 K 4 02 4 03 0 0 K 5 02 0 0 K Controller Setup PIN Prot...

Страница 76: ...n 0 0 V 0 0 V 0 0 V 0 0 V 0 0 V 0 0 V 0 0 V 0 0 V 0 0 V A2 max 10 0 V 10 0 V 10 0 V 10 0 V 10 0 V 10 0 V 10 0 V 10 0 V 10 0 V A2 Inverting OFF OFF OFF OFF OFF OFF OFF OFF OFF D1 Function OFF OFF OFF O...

Страница 77: ...FF OFF OFF OFF OFF OFF K3 Inverting K4 Function OFF OFF OFF OFF OFF OFF OFF OFF OFF K4 Inverting Bus Address 247 247 247 247 247 247 247 247 247 Addressing OFF OFF OFF OFF OFF OFF OFF OFF OFF Limits L...

Страница 78: ...5 0 15 0 15 0 15 0 15 0 Quench mode ON ON ON ON ON ON ON ON ON Overmodulation OFF OFF OFF OFF OFF OFF OFF OFF OFF Derating Alarm 5 5 5 5 5 5 5 5 5 Suppression1 OFF OFF OFF OFF OFF OFF OFF OFF OFF Rang...

Страница 79: ...ssible allocation of the IOs PINs Analog outputs A A2 Function Description function A A2 1A Constant voltage 10 V 2A proportional level control 3A proportional input E1 4A proportional input E2 5A Gro...

Страница 80: ...OFF not energized De energized at line motor and controller fault Sensor fault dependent on programming external fault at digital input 3K External fault separate with message at digital input factory...

Страница 81: ...ion of the device 00056 46 13 O Operation T Time C Controller The time counting runs as soon as mains voltage is connected without fault If events step on Motor fault External Error etc the period of...

Страница 82: ...OFF terminals D4 GND bridged ON terminals D4 GND not bridged D5 Status digital input 5 Digital In 5 OFF terminals D5 GND bridged ON terminals D5 GND not bridged K1 OFF relay K1 de energized terminals...

Страница 83: ...controller Line side measurements of the current may only be performed using true r m s measuring equipment The line current cannot be measured with suf cient accuracy using customary measuring equip...

Страница 84: ...r Digital In Factory sett AL 0 1 Controller did a factory set ting automatically e g in case of faulty parameter data Warning message Operation with factory setting EEP error AL 0 1 fault EEP damaged...

Страница 85: ...ller restarts Check the temperature in the device via diagnostic menu Check cooling of the controller Overload 2 AL 0 1 DC input chocke overheat ing or Capacitor interior over heating Warning message...

Страница 86: ...uit or interruption be tween both terminals TB TP or TK PTC The unit then remains switched off A programmed operating and fault indicating relay is trig gering Check motor and connection then reset Mo...

Страница 87: ...y function in factory setting 0 switching status retained 1 switching status changes 13 Function extension and version of software Software D1334A display version menu group Start under Icontrol Versi...

Страница 88: ...Q 308163 5 0 4 8 4 4 2 2 10 80 6 6 54 FXDM7 5A 308150 7 5 6 5 6 1 3 0 10 125 7 3 54 FXDM7 5AQ 308164 7 5 6 5 6 1 3 0 10 125 7 5 54 FXDM8 5A 308151 8 5 7 8 7 3 4 0 10 150 7 3 54 FXDM8 5AQ 308165 8 5 7...

Страница 89: ...eq 6 8 10 16 kHz Input resistance for sensor or signal set for the rotational speed for 0 10 V input Ri 100 k for 4 20 mA input Ri 100 Voltage supply e g for sensors 24 V 20 Imax 120 mA for connection...

Страница 90: ...2 6 Rated current 2 6 A Rated conditions Line voltage 3 208 15 415 V 6 Switching Freq 6 8 kHz max 40 C ambient temperature Power reduction for line voltage higher 3 415 V 6 or increasing of clock freq...

Страница 91: ...4 A 4 0 A 3 3 A FXDM8 5A Q 7 2 A 5 3 A 4 3 A 6 1 A 4 5 A 3 7 A FXDM12A Q 10 2 A 7 4 A 6 1 A 8 7 A 6 3 A 5 2 A FXDM17A Q 14 5 A 13 7 A 12 3 A 14 4 A 12 3 A 10 4 A FXDM25A Q 21 3 A 19 5 A 17 0 A 20 4 A...

Страница 92: ...q 34 33 Nur in Q Ger ten Only in Q Devices 11 Kontaktbelastung Contact rating max AC 400 V 4 A 10 0 1 A D GND Terminal AXG 1A E B D MODBUS RS 485 GND 24 V A D B D 1 Line 3 208 480 V 50 60 Hz N connect...

Страница 93: ...AQ FXDM4 2 17A FXDM25A FXDM4 2 17AQ FXDM25AQ FXDM4 2 17A Q FXDM25A Q Position of switch for plan view without obligation Operating Instructions Icontrol model series FXDM Enclosure L BAL E036 GB 1422...

Страница 94: ...FXDM32 62A FXDM32 62AQ IP54 FXDM32 62AE IP20 Operating Instructions Icontrol model series FXDM Enclosure L BAL E036 GB 1422 Index 008 Part No 00154773 GB 94 96...

Страница 95: ...47 Input resistance 82 interior temperatures 66 K K Factor 37 L Limit 43 Limits 59 line fuse 82 line impedance 11 linear curve 63 LON 15 M mains 12 MAL1 MAL10 39 Maximum frequency 62 MBG 30I MBG 50I 3...

Страница 96: ...ur V STE support department for control systems ventilation technology Our worldwide contacts are available in our subsidiaries for deliveries outside of Germany www ziehl abegg com If you make return...

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