Honeywell SmartVFD HVAC MR4 User Manual

Variable frequency drives for constant and variable torque applications
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Honeywell
User Manual
SmartVFD HVAC
Variable Frequency Drives
for Constant and Variable
Torque Applications
63-2692-08

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  Summary of Contents for Honeywell SmartVFD HVAC MR4

  • Page 1 Honeywell User Manual SmartVFD HVAC Variable Frequency Drives for Constant and Variable Torque Applications 63-2692-08...
  • Page 2: Table Of Contents

    Honeywell • 0 INDEX Document: DPD00323C Version release date: 1.4.10 Safety ........................2 Danger ..........................2 Warnings......................... 3 Grounding and ground fault protection ................3 Running the motor ......................4 Receipt of delivery.....................6 ‘Product modified’ sticker ....................6 Unpacking and lifting the drive..................6 2.2.1 Lifting frames MR8 and MR9 ..................
  • Page 3 Honeywell • 1 7.1.3 Definitions of overloadability ..................63 SmartVFD HVAC - technical data................. 64 7.2.1 Technical information on control connections............... 66...
  • Page 4: Safety

    Honeywell • 2 AFETY AFETY This manual contains clearly marked cautions and warnings which are intended for your per- sonal safety and to avoid any unintentional damage to the product or connected appliances. Please read the information included in cautions and warnings carefully.
  • Page 5: Warnings

    Grounding and ground fault protection CAUTION! The Honeywell Smart VFD HVAC AC drive must always be grounded with an grounding con- ductor connected to the grounding terminal marked with The touch current of the drive exceeds 3.5mA AC. According to EN61800-5-1, one or more of the following conditions for the associated protective circuit shall be satisfied: 1.
  • Page 6: Running The Motor

    Honeywell • 4 AFETY c) provision of an additional terminal for a second protective earthing conductor of the same cross-sectional area as the original protective earthing conductor. 2. Connection with an industrial connector according to IEC 60309 and a minimum protec- tive earthing connector cross-section of 2.5mm...
  • Page 7 Honeywell • 5 AFETY...
  • Page 8: Receipt Of Delivery

    Honeywell • 6 ECEIPT OF DELIVERY ECEIPT OF DELIVERY Check the correctness of delivery by comparing your order data to the drive information found on the package label. If the delivery does not correspond to your order, contact the supplier immediately.
  • Page 9: Lifting Frames Mr8 And Mr9

    NOTE: The maximum allowed lifting angle is 45 degrees. Figure 2. Lifting bigger frames The Honeywell Smart VFD HVAC undergoes scrupulous tests and quality checks at the factory before it is delivered to the customer. However, after unpacking the product, check that no signs of transport damages are to be found on the product and that the delivery is complete.
  • Page 10: Type Designation Code

    ECEIPT OF DELIVERY Type designation code Honeywell type designation code is formed of a four-segment code. Each segment of the type designation code uniquely corresponds to the product and options you have ordered. The code is of the following format:...
  • Page 11: Accessories

    Honeywell • 9 ECEIPT OF DELIVERY Accessories After having opened the transport package and lifted the converter out, check immediately that these various accessories were included in the delivery: • Rubber grommets (sizes vary according to frame) • Power cable clamps for EMC grounding •...
  • Page 12: Mounting

    Honeywell • 10 OUNTING OUNTING The drive must be mounted in vertical position on the wall. Ensure that the mounting plane is relatively even. The drive shall be fixed with four screws (or bolts, depending on the unit size). Dimensions 3.1.1...
  • Page 13 Honeywell • 11 OUNTING 5.67 4.53 Ø.28 3.94* 8.43 Ø.55 Ø.28 2.83 NEMA1 NEMA12 Ø1.30 Ø.98 Ø1.30 1.36 1.48 1.48 1.38 1.46 1.46 1.38 1.46 1.46 Ø.28 3.94* 4.53 *Optional mounting holes (for NX replacement) Figure 4. SmartVFD HVAC dimensions, MR5, wall mount 7.68...
  • Page 14: Wall Mount, Mr8 And Mr9

    Honeywell • 12 OUNTING NEMA1 9.33 10.20 2.72 2.72 7.48 Ø.35 Ø.79 1.38 1.38 Ø.63 Ø2.01 NEMA12 2.72 2.72 1.77 1.77 Ø.98 Ø1.97 Figure 6. SmartVFD HVAC dimensions, MR7, wall mount 3.1.2 Wall mount, MR8 and MR9 13.50 11.42 8.54 Ø.35...
  • Page 15: Flush Mount

    Honeywell • 13 OUNTING 14.37 18.90 13.98 Ø.87 Ø.35 15.75 14.17 Ø.35 Ø.35 11.50 Ø.35 14.17 Figure 8. AC drive dimensions, MR9 NEMA1 and NEMA12 (preliminary) 3.1.3 Flush mount The AC drive can also be recessed into the cabinet wall or similar surface. A special flush mount option is available for this purpose.
  • Page 16 Honeywell • 14 OUNTING 3.1.3.1 Flush mount - Frames MR4 to MR6 Figure 10. presents the dimensions of the mounting opening and Figure 11. the depth dimen- sions of the drives with the flush mount option. Drive outline Opening outline Figure 10.
  • Page 17 Honeywell • 15 OUNTING 3.03 4.45 3.94 4.49 7.48 8.43 4.17 4.84 9.02 Figure 11. MR4 to MR6, flush mount, depth dimensions...
  • Page 18 Honeywell • 16 OUNTING 3.1.3.2 Flush mount MR7 to MR9 Figure 12. presents the dimensions of the mounting opening and Figure 13. the dimensions of the drives with the flush mount option. Drive outline Opening outline Figure 12. Flush mount cutout dimensions for MR7 to MR9 Frame 25.79...
  • Page 19 Honeywell • 17 OUNTING Ø.87 9.17 4.33 5.87 4.25 9.72 Figure 13. MR7 to MR9, flush mount, depth dimensions...
  • Page 20: Cooling

    Honeywell • 18 OUNTING Cooling The drive produces heat in operation and is cooled by air circulated by a fan. Enough free space needs to be left around the drive to ensure sufficient air circulation and cooling. Different acts of maintenance also require a certain amount of free space.
  • Page 21 Honeywell • 19 OUNTING Note that if several units are mounted above one another the required free space equals C + D (see Figure 15.). Moreover, the outlet air used for cooling by the lower unit must be directed away from the air intake of the upper unit.
  • Page 22: Power Cabling

    Honeywell • 20 OWER CABLING OWER CABLING The mains cables are connected to terminals L1, L2 and L3 and the motor cables to terminals marked with U, V and W. See Table 7 for the cable recommmendations for different EMC lev- els.
  • Page 23: Ul Standards On Cabling

    Honeywell • 21 OWER CABLING UL standards on cabling To meet the UL (Underwriters Laboratories) regulations, use a UL-approved copper cable with a minimum heat-resistance of +140/167°F. Use Class 1 wire only. The units are suitable for use on a circuit capable of delivering not more than 100,000 rms sym- metrical amperes, 600V maximum.
  • Page 24 *. For more information on type code, see page 8. **. The 460V models require 90-degree wire to meet UL regulations Table 8. Cable and fuse sizes for Honeywell Smart VFD HVAC (MR4 to MR6) The cable dimensioning is based on the criteria of the Underwriters’ Laboratories UL508C:Cables must be PVC-isolated;...
  • Page 25: Brake Resistor Cables

    2*350 kcmil AWG1-350 kcmil AWG1-350 kcmil Table 9. Cable and fuse sizes for Honeywell Smart VFD HVAC (MR7 to MR9) The cable dimensioning is based on the criteria of the Underwriters’ Laboratories UL508C:Cables must be PVC-isolated; Max ambient temperature +86°F, max temperature of cable surface +158°F; Use only cables with concentric copper shield;...
  • Page 26: Cable Installation

    Honeywell • 24 OWER CABLING Cable installation • Before starting, check that none of the components of the drive is live. Read carefully the warnings in chapter 1. • Place the motor cables sufficiently far from other cables • Avoid placing the motor cables in long parallel lines with other cables.
  • Page 27 Honeywell • 25 OWER CABLING Frame 1.38 1.38 Leave 1.57 1.18 1.57 as short as pos- 3.54 2.36 2.36 sible 3.15 3.15 3.15 Table 10. Cables stripping lengths [in] Open the cover of the drive. Figure 18.
  • Page 28 Honeywell • 26 OWER CABLING Remove the screws of the cable protection plate. Do not open the cover of the power unit! Figure 19. Insert the cable grommets (included in the delivery) in the openings of the cable entry plate (included) as shown in the picture.
  • Page 29 Honeywell • 27 OWER CABLING Insert the cables - supply cable, motor cable and optional brake cable - in the openings of the cable entry plate. Then cut the rubber grommets open to slide the cables through. Do not cut the grommet openings wider than what is neces- sary for the cables you are using.
  • Page 30 Honeywell • 28 OWER CABLING Detach the cable clamps and the grounding clamps (Figure 22) and place the cable entry plate with the cables in the groove on the drive frame (Figure 23). Figure 22. Figure 23.
  • Page 31 Honeywell • 29 OWER CABLING Connect the stripped cables (see Figure 17 and Table 10) as shown in Figure 24. • Expose the shield of all three cables in order to make a 360-degree con- nection with the cable clamp (1).
  • Page 32 Honeywell • 30 OWER CABLING Check the connection of the grounding cable to the motor and the drive terminals marked with NOTE: Two protective conductors are required according to standard EN61800- 5-1. See Figure 25 and chapter Grounding and ground fault protection. Use an M5 size screw and tighten it to 2.0 Nm (17.7 lb-in.).
  • Page 33: Frames Mr8 And Mr9

    Honeywell • 31 OWER CABLING 4.4.2 Frames MR8 and MR9 Strip the motor and mains cables as advised below. Earth conductor Earth conductor MAINS MOTOR Figure 27. Stripping of cables Frame Leave as 1.57 7.09 11.81 11.81 short as 1.57 7.09...
  • Page 34 Honeywell • 32 OWER CABLING MR9 only: Remove the main cover of the AC drive. Figure 28. Remove the cable cover (1) and the cable fitting plate (2). Figure 29.
  • Page 35 Honeywell • 33 OWER CABLING MR9 only: Loosen the screws and remove the sealing plate. Figure 30. Locate the terminals. OBSERVE the exceptional placement of motor cable ter- minals in MR8! Figure 31.
  • Page 36 Honeywell • 34 OWER CABLING Cut the rubber grommets open to slide the cables through. Should the grommets fold in while inserting the cable, just draw the cable back a bit to straighten the grommets up. Do not cut the grommet openings wider than what is necessary for the cables you are using.
  • Page 37 Honeywell • 35 OWER CABLING If you use thick cables insert the cable separators in between the terminals in order to avoid contact between the cables. Figure 34. Connect the cables stripped as shown in Figure 27. • Connect the (phase) conductors of the supply, brake and motor cables into their respective terminals (a).
  • Page 38 Honeywell • 36 OWER CABLING L1 L2 L3 R+ R- Figure 35. Connector Cable lug Cable lug Figure 36. Placing two cable lugs on top of each other Tightening torques of cable terminals: Tightening torque Tightening torque Tightening torque, [Nm]/[lb-in.] [Nm]/[lb-in.]...
  • Page 39 Honeywell • 37 OWER CABLING Expose the shield of all three cables in order to make a 360-degree connection with the cable clamp. Figure 37. Re-attach first the cable fitting plate and then the cable cover. Figure 38.
  • Page 40 Honeywell • 38 OWER CABLING MR9 only: Now re-mount the main cover (unless you want to make the control connections first). Figure 39. Check the connection of the earth cable to the motor and the AC drive terminals marked with NOTE: Two protective conductors are required according to standard EN61800- 5-1.
  • Page 41: Cable And Motor Insulation Checks

    Honeywell • 39 OWER CABLING Figure 40. 4.4.3 Cable and motor insulation checks 1. Motor cable insulation checks Disconnect the motor cable from terminals U, V and W of the drive and from the motor. Measure the insulation resistance of the motor cable between each phase conductor as well as between each phase conductor and the protective ground conductor.
  • Page 42: Commissioning

    Honeywell • 40 OMMISSIONING OMMISSIONING Before commissioning, note the following directions and warnings: Internal components and circuit boards of the drive (except for the galvanically isolated I/O terminals) are live when it is connected to mains potential. Coming into contact with this voltage is extremely dangerous and may cause death or severe injury.
  • Page 43: Commissioning Of The Smartvfd Hvac

    Honeywell • 41 OMMISSIONING Commissioning of the SmartVFD HVAC Read carefully the safety instructions in Chapter 1 and above and follow them. After the installation, make sure that: • both the drive and the motor are grounded. • the mains and motor cables comply with the requirements given in chapter 4.1.1.
  • Page 44: Changing Emc Protection Class

    Honeywell • 42 OMMISSIONING Changing EMC protection class If your supply network is an IT (impedance-grounded) system but your AC drive is EMC-protected accord- ing to class C2 you need to modify the EMC protection of the AC drive to EMC-level T. This is done by...
  • Page 45 Honeywell • 43 OMMISSIONING Additionally for MR7, locate the DC grounding busbar between connectors R- and U and detach the busbar from the frame by undoing the M4 screw. Figure 43. MR7: Detaching the DC grounding busbar from frame...
  • Page 46: Frame Mr8

    Honeywell • 44 OMMISSIONING 5.2.2 Frame MR8 Follow the procedure described below to modify the EMC protection of the AC drive of frame MR8 to EMC- level T. Remove the main cover of the AC drive and locate the jumper. Push down the grounding arm.
  • Page 47: Frame Mr9

    Honeywell • 45 OMMISSIONING 5.2.3 Frame MR9 Follow the procedure described above to modify the EMC protection of the AC drive of frame MR9 to EMC-level T. Find the Molex connector in the accessories bag. Remove the main cover of the AC drive and locate the place for the connector next to the fan.
  • Page 48 Honeywell • 46 OMMISSIONING CAUTION! Before connecting the AC drive to mains make sure that the EMC pro- tection class settings of the drive are appropriately made. NOTE! After having performed the change write ‘EMC level modified’ on the stick- er included with the drive delivery (see below) and note the date.
  • Page 49 Honeywell • 47 OMMISSIONING...
  • Page 50: Control Unit

    Honeywell • 48 ONTROL UNIT ONTROL UNIT The control unit of the drive consists of the control board and additional boards (option boards) connected to the slot connectors of the control board. Locations of essential control unit components: 1 = Control terminals of the control board 2 = Terminals of relay board;...
  • Page 51: Control Unit Cabling

    Honeywell • 49 ONTROL UNIT Control unit cabling The basic control unit connections are presented in Figure 49 below. The control board is equipped with 22 fixed control I/O terminals and the relay board with 8 or 9. The relay board is available in two different configurations (see Table 16 and 17).
  • Page 52: Control Terminals And Dip Switches

    Honeywell • 50 ONTROL UNIT 6.1.2 Control terminals and DIP switches The terminals of the Basic I/O board and the Relay boards are described below. For more in- formation on the connections, see chapter 7.2.1. The terminals shown on shadowed background are assigned for signals with optional functions selectable with DIP switches.
  • Page 53 Honeywell • 51 ONTROL UNIT From Relay board 1 Basic I/O board From term. From term. Terminal Signal #6 or 12 Relay output 1 RO1/1 NC RO1/2 CM RO1/3 NO Relay output 2 RO2/1 NC RO2/2 CM RO2/3 NO Relay output 3...
  • Page 54 Honeywell • 52 ONTROL UNIT 6.1.2.1 Selection of terminal functions with dip switches The shadowed terminals in Table 15 allow for three functional selections each with the so- called dip switches . The switches have three positions, left, middle and right. The middle posi-...
  • Page 55: Fieldbus Connection

    Honeywell • 53 ONTROL UNIT Fieldbus connection The drive can be connected to fieldbus either through RS485 or Ethernet. The connection for RS485 is on the basic I/O board (terminals A and B) and the connection for Ethernet is under the drive cover, left to the control keypad.
  • Page 56 Honeywell • 54 ONTROL UNIT Cut free the opening on the drive cover for the Ethernet cable (protection class IP21). Figure 54. Remount the drive cover. NOTE: When planning the cable runs, remember to keep the distance between the Ethernet cable and the motor cable at a mini- mum of 12 inch.
  • Page 57: Prepare For Use Through Ms/Tp

    Strip the cable at a maximum length of .60 in. Do not strip the aluminum cable shield! Then connect the cable to its appropriate terminals on Honeywell Smart VFD HVAC AC drive standard terminal block, terminals A and B (A = negative, B =...
  • Page 58 Honeywell • 56 ONTROL UNIT RS485 terminals (A and B) 2829 21 22 23 24 25 26 13 14 15 16 17 18 19 20 A 2 3 4 5 6 7 8 9 10 8 9 10 Figure 56.
  • Page 59 Honeywell • 57 ONTROL UNIT If the drive is the last device on the bus, the bus termination must be set. Locate the DIP switches to the right of the control keypad of the drive and turn the switch for the RS485 bus termination resistor to position ON. Biasing is built in the termination resistor.
  • Page 60: Rs485 Cable Data

    Honeywell • 58 ONTROL UNIT Remount the drive cover and run the RS485 cables as shown in picture. NOTE: When planning the cable runs, remem- ber to keep the distance between the fieldbus cable and the motor cable at a minimum of 12...
  • Page 61: Battery Installation For Real Time Clock (Rtc)

    Honeywell • 59 ONTROL UNIT Battery installation for Real Time Clock (RTC) Enabling the functions of the Real Time Clock (RTC) requires that a battery is installed in the Smart VFD HVAC drive. The place for the battery can be found in all frames left to the control keypad (see Figure 57).
  • Page 62: Galvanic Isolation Barriers

    • 60 Honeywell ONTROL UNIT Galvanic isolation barriers The control connections are isolated from the mains potential and the GND terminals are per- manently connected to ground. See Figure 58. The digital inputs are galvanically isolated from the I/O ground. The relay outputs are addition- ally double-isolated from each other at 300VAC (EN-50178).
  • Page 63: Product Data

    • 61 Honeywell RODUCT DATA RODUCT DATA Power ratings 7.1.1 Mains voltage 208-240 V Mains voltage 208-240V, 50-60 Hz, 3~ Loadability Motor shaft power 230 supply 208-240V supply Converter type Rated continuous 10% overload 10% overload 10% overload current I L current 40°C...
  • Page 64: Mains Voltage 380-480V

    • 62 Honeywell RODUCT DATA 7.1.2 Mains voltage 380-480V Mains voltage 380-480V, 50-60 Hz, 3~ Loadability Motor shaft power 400V supply 480V supply Converter type Rated continuous 10% overload 10% overload 10% overload current I L current 104°F 104°F [kW]...
  • Page 65 • 63 Honeywell RODUCT DATA 7.1.3 Definitions of overloadability Low overload =Following continuous operation at rated output current I , the converter is fed with 110% * I for 1 min, followed by a period of I Example: If the duty cycle requires 110% rated current I for 1 min in every 10 min, the remaining 9 min must be at rated current or less.
  • Page 66 • 64 Honeywell RODUCT DATA SmartVFD HVAC - technical data Input voltage U 208...240V; 380…480V; -10%…+10% Input frequency 47…66 Hz Mains connection Connection to mains Once per minute or less Starting delay 4 s (MR4 to MR6); 6 s (MR7 to MR9) Output voltage :Ambient temperature max.
  • Page 67 Immunity environment Depend on EMC level. +EMC2: EN61800-3 (2004), Category C2 EMC (at default Honeywell Smart VFD HVAC will be deliv- settings) Emissions ered with class C2 EMC filtering, if not oth- erwise specified. Honeywell Smart VFD HVAC can be modi- fied for IT-networks.
  • Page 68 • 66 Honeywell RODUCT DATA 7.2.1 Technical information on control connections Basic I/O board Terminal Signal Technical information Reference output +10V, +3%; Maximum current 10 mA Analogue input channel 1 0- +10V (Ri = 200 k) Analogue input, 4-20 mA (Ri =250 ) voltage or current Resolution 0.1 %, accuracy ±1 %...
  • Page 69 • 67 Honeywell RODUCT DATA Relay board with two Type 8A/STST and one Type 8A/STDT relays. Relay 5,5 mm isolation between channels. board 1 External interface connector See chapter 6. Terminal Signal Technical information Switching capacity24VDC/8A 250VAC/8A Relay output 1 125VDC/0.4A...
  • Page 70 Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North ® U.S. Registered Trademark Golden Valley, MN 55422 © 2011 Honeywell International Inc. 63-2692-08 M.S. Rev. 11-11 customer.honeywell.com Printed in United States...
  • Page 71 Honeywell Application Manual SmartVFD HVAC Variable Frequency Drives for Constant and Variable Torque Applications 63-2692-08...
  • Page 72 Honeywell • 0 INDEX Document: DPD00321C Version release date: 1.4.10 Corresponds to application version FW0054V002 Startup ........................2 Startup Wizard ........................ 2 PID Mini-Wizard ......................4 Multi-pump mini-wizard ....................5 Graphic keypad - introduction................7 Keypad buttons ....................... 7 Keypad display........................ 7 2.2.1 Main menu ........................
  • Page 73 Honeywell • 1 3.5.14Group 3.12: PID-controller 1 ..................54 3.5.15Group 3.13: PID-controller 2 ..................60 3.5.16Group 3.14: Pump and Fan Cascade................62 3.5.17Group 3.15: Maintenance counters ................63 3.5.18Group 3.16: Fire mode ....................64 HVAC Application - Additional parameter information ..........65 HVAC Application - Fault tracing ..................
  • Page 74 Honeywell • 2 TARTUP TARTUP Startup Wizard In the Startup Wizard , you will be prompted for essential information needed by the drive so that it can start controlling your process. In the Wizard, you will need the following keypad but- tons: Left/Right arrows.
  • Page 75 Honeywell • 3 TARTUP STOP NotRDY Keypad  Startup Wizard? Push the OK button unless you want to set all parameter values manually. Choose your process Pump STOP NotRDY Keypad  Fan or Pump? Pump Set value for Motor Nominal Range: 24...19,200 rpm...
  • Page 76 Honeywell • 4 TARTUP PID Mini-Wizard The PID mini wizard is activated in the Quick Setup menu. This wizard presupposes that you are going to use the PID controller in the "one feedback / one setpoint" mode. The control place will be I/O A and the default process unit ‘%’.
  • Page 77 Honeywell • 5 TARTUP Range depends on selected pro- Wake-up level 1 cess unit. Multi-pump mini-wizard The Multi-Pump mini-wizard asks the most important questions for setting up a Multi-Pump sys- tem. The PID mini-wizard always precedes the Multi-Pump mini-wizard. The keypad will guide you through the questions as in chapter 1.2 then to be followed by the set of questions below:...
  • Page 78 Honeywell • 6 TARTUP...
  • Page 79 Honeywell • 7 RAPHIC KEYPAD INTRODUCTION RAPHIC KEYPAD INTRODUCTION The control keypad is the interface between the drive and the user. It features an LCD display and 9 buttons. With the control keypad it is possible to control the speed of a motor, to supervise the state of the equipment and to set the frequency converter's parameters.
  • Page 80 Honeywell • 8 RAPHIC KEYPAD INTRODUCTION Status field Status field STOP/RUN READY/NOT READY/FAULT Direction ALARM Control place: STOP STOP READY READY PC/IO/KEYPAD/FIELDBUS Main Menu Main Menu Location field (Parameter ID number Quick Setup Quick Setup and current menu location) ( 17 ) ( 17 ) Activated group/item.
  • Page 81 Honeywell • 9 RAPHIC KEYPAD INTRODUCTION 2.3.3 Local/remote control button The LOC/REM button is used for two functions: to quickly access the Control page and to easily change between the Local (Keypad) and Remote control places. 2.3.3.1 Changing the control place The control place is the source of control where the drive can be started and stopped.
  • Page 82 Honeywell • 10 RAPHIC KEYPAD INTRODUCTION 2.3.3.2 Accessing the control page Control page is meant for easy operation and monitoring of the most essential values. 1. Anywhere in the menu structure, push the Loc/Rem button. 2. Push the Arrow up...
  • Page 83 Honeywell • 11 RAPHIC KEYPAD INTRODUCTION 2.3.5 Adding item to favourites You might need to refer to certain parameter values or other items often. Instead of locating them one by one in the menu structure, you may want to add them to a folder called Favourites where they can easily be reached.
  • Page 84 Honeywell • 12 RAPHIC KEYPAD INTRODUCTION Menu structure Click on and select the item you wish to receive more information about (electronic manual). See chapter 3.3. Quick setup Multi-monitor Monitor Basic Timer functions PID Controller 1 PID Controller 2 Multi-Pump Fieldbus data See chapter 3.
  • Page 85 Honeywell • 13 RAPHIC KEYPAD INTRODUCTION 2.4.1 Quick setup The Quick Setup Menu includes the minimum set of most commonly used parameters during installation and commissioning. More detailed information on the parameters of this group you will find in chapter 3.3.
  • Page 86 Honeywell • 14 RAPHIC KEYPAD INTRODUCTION 2.4.3 Parameters Through this submenu, you can reach the application parameter groups and parameters. More information on parameters in chapter 3. 2.4.4 Diagnostics Under this menu, you can find Active faults Reset faults Fault history...
  • Page 87 Honeywell • 15 RAPHIC KEYPAD INTRODUCTION 2.4.4.5 Trip counters Code Parameter Unit Default Description M4.5.1 Energy counter (+) Varies 2296 Resettable energy counter. M4.5.3 Operating time a d hh:min 2299 Resettable. Table 3. Diagnostics menu, Trip counters parameters 2.4.4.6 Software info...
  • Page 88 Honeywell • 16 RAPHIC KEYPAD INTRODUCTION 2.4.5 I/O and hardware Various options-related settings are located in this menu. 2.4.5.1 Basic I/O Monitor here the statuses of inputs and outputs. Code Parameter Unit Default Description M5.1.1 Digital input 1 Status of digital input signal M5.1.2...
  • Page 89 Honeywell • 17 RAPHIC KEYPAD INTRODUCTION 2.4.5.3 Real time clock Code Parameter Unit Default Description Status of battery. 1 = Not installed M5.4.1 Battery state 2205 2 = Installed 3 = Change battery M5.4.2 Time hh:mm:ss 2201 Current time of day M5.4.3...
  • Page 90 Honeywell • 18 RAPHIC KEYPAD INTRODUCTION 2.4.6 User settings Code Parameter Unit Default Description 1 = English 2 = Suomi M6.1 Language selections 3 = Deutsch 4 = Svenska M6.2 Application selection M6.5 Parameter backup See chapter 2.4.6.1 below. M6.7 Drive name Give name of drive if needed.
  • Page 91 Honeywell • 19 RAPHIC KEYPAD INTRODUCTION 2.4.7 Favourites Favourites are typically used to collect a set of parameters or monitoring signals from any of the keypad menus. You can add items or parameters to the Favourites folder, see chapter 2.3.5.
  • Page 92 Honeywell HVAC A • 20 PPLICATION HVAC A PPLICATION The drive contains a preloaded application for instant use. The parameters of this application are listed in chapter 3.5 of this manual and explained in more detail in chapter 3.6. Specific functions of SmartVFD The SmartVFD HVAC is an easy-to-use application for basic Pump and Fan applications where only one motor and one drive is needed and also offers extensive possibilities for PID control.
  • Page 93 Honeywell • 21 HVAC A PPLICATION Example of control connections Basic I/O board Terminal Signal Default +10 Vref Reference output AI1+ Analog input, Reference potentiometer voltage or current Ω 1...10 k Voltage AI1- Analog input common (cur- rent) AI2+ Analog input,...
  • Page 94 Honeywell HVAC A • 22 PPLICATION From Relay board 1 Basic I/O board From term. From term. Terminal Signal #6 or 12 RO1/1 NC Relay output 1 RO1/2 CM RO1/3 NO RO2/1 NC Relay output 2 FAULT RO2/2 CM RO2/3 NO...
  • Page 95 Honeywell • 23 HVAC A PPLICATION HVAC Application - Quick setup parameter group The Quick Setup parameter group is a collection of parameters that are most commonly used during installation and commissioning. They are collected in the first parameter group so that they can be found fast and easily.
  • Page 96 Honeywell HVAC A • 24 PPLICATION 0 = Inactive M1.18 Multi-Pump Wizard 1 = Activate See chapter 1.3. 0 = Inactive M1.19 Startup Wizard 1 = Activate See chapter 1.1. Table 13. Quick setup parameter group...
  • Page 97 Honeywell • 25 HVAC A PPLICATION Monitor group The drive provides you with a possibility to monitor the actual values of parameters and signals as well as statuses and measurements. Some of the values to be monitored are customizable. 3.4.1 Multimonitor On the multi-monitor page, you can collect nine values that you wish to monitor.
  • Page 98 Honeywell HVAC A • 26 PPLICATION Monitoring value Unit Description M2.2.19 Fire mode status 1597 0=Disabled 1=Enabled 2=Activated (Enabled + DI open) 3=Test mode M2.2.20 DIN Status Word 1 16-bit word where each bit represents the status of one digital input. 6 digital inputs at every slot are read.
  • Page 99 Honeywell • 27 HVAC A PPLICATION 3.4.3 Timer functions monitoring Here you can monitor values of timer functions and the Real Time Clock. Monitoring value Unit Description M2.3.1 TC 1, TC 2, TC 3 1441 Possible to monitor the statuses of the three Time Channels (TC) M2.3.2...
  • Page 100 Honeywell HVAC A • 28 PPLICATION 3.4.6 Pump and Fan Cascade (PFC) Monitoring value Unit Description M2.6.1 Motors running The number of motors running when Multi-Pump function is used. M2.6.2 Autochange 1113 Informs the user if autochange is requested. Table 18. Pump and fan cascade monitoring 3.4.7...
  • Page 101 Honeywell • 29 HVAC A PPLICATION Monitoring value Unit Description M2.8.17 FB data out 5 Raw value of process data in 32-bit signed format M2.8.18 FB data out 6 Raw value of process data in 32-bit signed format M2.8.19 FB data out 7 Raw value of process data in 32-bit signed format M2.8.20...
  • Page 102 Honeywell HVAC A • 30 PPLICATION HVAC Application - Application parameter lists Find the parameter menu and the parameter groups as guided below. STOP READY Keypad STOP READY Keypad  Parameters Main Menu M3.1 M3.1    Quick Setup...
  • Page 103 Honeywell • 31 HVAC A PPLICATION 3.5.2 Parameter programming The programming of digital inputs is very flexible. There are no digital terminals assigned only for certain function. You can choose the terminal of your choice for the certain function, in other words, functions appear as parameters which the operator defines a certain input for.
  • Page 104 Honeywell HVAC A • 32 PPLICATION EXAMPLE: You want to connect the Control signal 2 A (parameter M3.5.1.2) to digital input DI2 on Ba- sic I/O board. Locate the parameter Control signal 2 A (M3.5.1.2) on the keypad. STOP READY...
  • Page 105 Honeywell • 33 HVAC A PPLICATION 3.5.3 Group 3.1: Motor settings 3.5.3.1 Basic Settings Code Parameter Unit Default Description Find this value U n on the rating plate of the motor. This parameter sets the volt- M3.1.1.1 Motor nominal voltage...
  • Page 106 Honeywell HVAC A • 34 PPLICATION 3.5.3.2 Motor Control Settings Code Parameter Unit Default Description Motor noise can be mini- mised using a high switch- ing frequency. Increasing the switching frequency reduces the capacity of the M3.1.2.1 Switching frequency Varies Varies drive.
  • Page 107 Honeywell • 35 HVAC A PPLICATION 3.5.4 Group 3.2: Start/Stop setup Code Parameter Unit Default Description Selection of remote control place (start/stop). Can be used to change back to Remote control remote control from PC M3.2.1 place e.g. in case of a broken panel.
  • Page 108 Honeywell HVAC A • 36 PPLICATION 3.5.5 Group 3.3: Control reference settings Code Parameter Unit Default Description Minimum allowed frequency M3.3.1 Minimum frequency 0.00 M3.3.2 0.00 reference Maximum allowed frequency M3.3.2 Maximum frequency M3.3.1 320.00 60.00 reference Selection of ref source when...
  • Page 109 Honeywell • 37 HVAC A PPLICATION 0 = Binary coded 1 = Number of inputs. Preset Preset frequency frequency is selected accord- M3.3.10 mode ing to how many of preset speed digital inputs are active Basic preset frequency 0 M3.3.11 Preset frequency 0 M3.3.1...
  • Page 110 HVAC A Honeywell • 38 PPLICATION 3.5.6 Group 3.4: Ramp & Brakes Setup Two ramps are available (two sets of acceleration time, deceleration time and ramp shape). The second ramp can be activated by a frequency threshold or a digital input. NOTE: Ramp 2 always has higher priority and is used if a digital input for ramp selection is activated or Ramp 2 threshold is smaller than RampFreqOut.
  • Page 111 Honeywell • 39 HVAC A PPLICATION Defines the current injected into the motor during DC- M3.4.14 DC brake current Varies Varies Varies braking. 0 = Disabled The output frequency at Frequency to start DC M3.4.15 0,10 10,00 1,50 which the DC-braking is braking at ramp stop applied.
  • Page 112 HVAC A Honeywell • 40 PPLICATION 3.5.7 Group 3.5: I/O Configuration 3.5.7.1 Digital inputs Digital inputs are very flexible to use. Parameters are functions that are connected to the re- quired digital input terminal. The digital inputs are represented as, for example, DigIN Slot A.2, meaning the second input on slot A.
  • Page 113 Honeywell • 41 HVAC A PPLICATION FALSE = Setpoint 1 M3.5.1.23 PID1 select setpoint DigIN Slot0.1 1046 TRUE = Setpoint 2 FALSE = PID2 in stop mode TRUE = PID2 regulating M3.5.1.24 PID2 start signal DigIN Slot0.2 1049 This parameter will have no effect if PID2 con-...
  • Page 114 HVAC A Honeywell • 42 PPLICATION 3.5.7.2 Analog inputs Code Parameter Unit Default Description Connect the AI1 signal to the AnIN analog input of your choice M3.5.2.1 AI1 signal selection SlotA.1 with this parameter. Programmable. M3.5.2.2 AI1 signal filter time 0.00...
  • Page 115 Honeywell • 43 HVAC A PPLICATION 0 = Normal M3.5.2.30 AI5 signal inversion 1 = Signal inverted AnIN See M3.5.2.13. Programma- M3.5.2.31 AI6 signal selection Slot0.1 ble. M3.5.2.32 AI6 signal filter time 0.00 300.00 See M3.5.2.14. 0 = 0…10V / 0…20mA M3.5.2.33...
  • Page 116 HVAC A Honeywell • 44 PPLICATION 3.5.7.3 Digital outputs, slot B (Basic) Code Parameter Unit Default Description Function selection for Basic R01: 0 = None 1 = Ready 2 = Run 3 = General fault 4 = General fault inverted...
  • Page 117 Honeywell • 45 HVAC A PPLICATION 3.5.7.4 Expander slots D and E digital outputs Code Parameter Unit Default Description Shows only parameters for existing outputs in slot D/E. Application dynamic Selections as in Basic R01 output list Not visible if no digital output exists in slot D/E.
  • Page 118 Honeywell HVAC A • 46 PPLICATION 3.5.7.6 Expander slots D to E analog outputs Code Parameter Unit Default Description Shows only parameters for existing outputs in slot D/E. Application dynamic Selections as in Basic AO1 output list Not visible if no analog out- put exists in slot D/E.
  • Page 119 Honeywell • 47 HVAC A PPLICATION 3.5.8 Group 3.6: Fieldbus Data Mapping Code Parameter Unit Default Description Data sent to fieldbus can be chosen with parameter and monitor value ID numbers. Fieldbus data out 1 The data is scaled to P3.6.1...
  • Page 120 Honeywell HVAC A • 48 PPLICATION 3.5.9 Group 3.7: Prohibit Frequencies In some systems it may be necessary to avoid certain frequencies due to mechanical reso- nance problems. By setting up prohibit frequencies it is possible to skip these ranges.
  • Page 121 Honeywell • 49 HVAC A PPLICATION 3.5.10 Group 3.8: Limit supervisions Choose here: 1. One or two (M3.8.1/M3.8.5) signal values for supervision. 2. Whether the low or high limits are supervised (M3.8.2/M3.8.6) 3. The actual limit values (M3.8.3/M3.8.7). 4. The hystereses for the set limit values (M3.8.4/M3.8.8).
  • Page 122 HVAC A Honeywell • 50 PPLICATION 3.5.11 Group 3.9: Protections Code Parameter Unit Default Description 0=No action 1=Alarm 2=Alarm, set preset fault fre- Response to Analog M3.9.1 quency (par. M3.3.19) input low fault 3=Fault (Stop according to stop mode) 4=Fault (Stop by coasting)
  • Page 123 Honeywell • 51 HVAC A PPLICATION 3.5.12 Group 3.10: Automatic reset Code Parameter Unit Default Description 0 = Disabled M3.10.1 Automatic reset 1 = Enabled The start mode for Automatic reset is selected with this M3.10.2 Restart function parameter: 0 = Flying start 1 = According to par.
  • Page 124 Honeywell HVAC A • 52 PPLICATION 3.5.13 Group 3.11: Timer functions The functions of this parameter group can be made the fullest advantage of if the Real Time Clock settings have been properly made during the Startup Wizard (see page 2 and page 3).
  • Page 125 Honeywell • 53 HVAC A PPLICATION M3.11.2.4 To day 1472 See Interval 1 M3.11.2.5 Assign to channel 1473 See Interval 1 3.11.3 INTERVAL 3 M3.11.3.1 ON time 00:00:00 23:59:59 hh:mm:ss 00:00:00 1474 See Interval 1 M3.11.3.2 OFF time 00:00:00 23:59:59 hh:mm:ss 00:00:00 1475 See Interval 1 M3.11.3.3...
  • Page 126 HVAC A Honeywell • 54 PPLICATION 3.5.14 Group 3.12: PID-controller 1 3.5.14.1 Basic settings Code Parameter Unit Default Description If the value of the parameter is set to 100% a change of M3.12.1.1 PID gain 0.00 1000.00 100.00 10% in the error value causes the controller output to change by 10%.
  • Page 127 Honeywell • 55 HVAC A PPLICATION 3.5.14.2 Setpoints Code Parameter Unit Default Description M3.12.2.1 Keypad setpoint 1 Varies Varies Varies M3.12.2.2 Keypad setpoint 2 Varies Varies Varies Defines the rising and falling ramp times for setpoint M3.12.2.3 Setpoint ramp time 0.00...
  • Page 128 Honeywell HVAC A • 56 PPLICATION Maximum value at analog M3.12.2.13 Setpoint 2 maximum -200.00 200.00 100.00 1074 signal maximum. M3.12.2.14 Sleep frequency limit 2 0.00 320.00 0.00 1075 See M3.12.2.7. M3.12.2.15 Sleep delay 2 3000 1076 See M3.12.2.8. M3.12.2.16...
  • Page 129 Honeywell • 57 HVAC A PPLICATION 3.5.14.3 Feedbacks Code Parameter Unit Default Description 1=Only Source1 in use 2=SQRT(Source1);(Flow=Co nstant x SQRT(Pressure)) 3=SQRT(Source1- Source 2) 4=SQRT(Source 1) + SQRT M3.12.3.1 Feedback function (Source 2) 5=Source 1 + Source 2 6=Source 1 - Source 2...
  • Page 130 HVAC A Honeywell • 58 PPLICATION 3.5.14.4 Feedforward Feedforward usually needs accurate process models, but in some simple cases a gain + offset type of feedforward is enough. The feedforward part does not use any feedback measurements of the actual controlled process value (water level in the example on page 77). Feedforward control uses other measurements which are indirectly affecting the controlled process value.
  • Page 131 Honeywell • 59 HVAC A PPLICATION 3.5.14.6 Pressure loss compensation Code Parameter Unit Default Description Enables pressure loss com- pensation for setpoint 1. M3.12.6.1 Enable setpoint 1 1189 0 = Disabled 1 = Enabled Value added proportionally to the frequency.
  • Page 132 Honeywell HVAC A • 60 PPLICATION 3.5.15 Group 3.13: PID-controller 2 3.5.15.1 Basic settings For more detailed information, see chapter 3.5.14. Code Parameter Unit Default Description 0 = Disabled M3.13.1.1 Enable PID 1630 1 = Enabled The output value of the PID controller in % of its maxi- M3.13.1.2...
  • Page 133 Honeywell • 61 HVAC A PPLICATION 3.5.15.3 Feedback For more detailed information, see chapter 3.5.14. Code Parameter Unit Default Description M3.13.3.1 Feedback function 1650 Feedback function M3.13.3.2 -1000.0 1000.0 100.0 1651 gain Feedback 1 M3.13.3.3 1652 source selection Minimum value at analog M3.13.3.4 Feedback 1 minimum...
  • Page 134 HVAC A Honeywell • 62 PPLICATION 3.5.16 Group 3.14: Pump and Fan Cascade The Multi-pump functionality allows you to control up to 4 motors (pumps, fans) with PID con- troller 1. The drive is connected to one motor which is the "regulating" motor connecting and disconnecting the other motors to/from the mains, by means of contactors controlled with relays when needed in order to maintain the right setpoint.
  • Page 135 Honeywell • 63 HVAC A PPLICATION 3.5.17 Group 3.15: Maintenance counters Three maintenance counters can be programmed and given alarm and fault levels indepen- dently. The alarm or fault level, or both, can be used. There are two modes (hours or revolutions). Revolutions are estimated by integrating the Motor Speed every second and shown in 1000 revolutions on the keypad.
  • Page 136 Honeywell HVAC A • 64 PPLICATION 3.5.18 Group 3.16: Fire mode Drive ignores all commands from keypad, fieldbuses and PC tool and runs at preset frequency when activated. If activated, alarm sign is shown on the keypad and warranty is void. In order...
  • Page 137 Honeywell • 65 HVAC A PPLICATION HVAC Application - Additional parameter information Due to its user-friendliness and simplicity of use, the most parameters of the HVAC Application only require a basic description which is given in the parameter tables in chapter 3.5.
  • Page 138 Honeywell HVAC A • 66 PPLICATION Output Stop function Stop function frequency (M3.2.5) (M3.2.5) = coasting = ramp Ctrl signal 1 A/B Ctrl signal 2 A/B 100K09 Figure 7. Start forward Output Stop function If Start and Stop pulses are frequency (M3.2.5)
  • Page 139 Honeywell • 67 HVAC A PPLICATION AI1 threshold -2% AI1 threshold Start command 1 = Active 0 = Not active HW100 K31.fh11 100% Figure 9. AI1 threshold M3.2.10 EYPAD ASTER The AC drive can be forced to stop state from keypad stop button even if it is controlled from another control place (Remote).
  • Page 140 Honeywell HVAC A • 68 PPLICATION Required action Activated frequency Choose value 1 for parame- Preset frequency 0 ter M3.3.3 Preset frequency 1 Preset frequency 2 Preset frequency 3 Preset frequency 4 Preset frequency 5 Preset frequency 6 Preset frequency 7 Table 53.
  • Page 141 Honeywell • 69 HVAC A PPLICATION NOTE: The ramp time optimizer only affects the settings of Ramp 1. Ramp 2 will not be modi- fied. Output frequency Maximum frequency New deceleration time (Old optimizing percentage) Time HW100 K29.fh11 Old deceleration time Figure 11.
  • Page 142 Honeywell HVAC A • 70 PPLICATION M3.5.2.2 SIGNAL FILTER TIME When this parameter is given a value greater than 0 the function that filters out disturbances from the incoming analog signal is activated. NOTE: Long filtering time makes the regulation response slower!
  • Page 143 Honeywell • 71 HVAC A PPLICATION Selection Selection name Description RTC timer 2 control Time channel 2 is used. RTC timer 3 control Time channel 3 is used. FB Control WordB.13 FB Control WordB.14 FB Control WordB.15 PID1 in Sleep mode...
  • Page 144 Honeywell HVAC A • 72 PPLICATION Tagged with Successful! OK button Min freq Max freq Failed! H W1 00 K30.fh11 Min freq Max freq Figure 13. M3.9.2 ESPONSE TO EXTERNAL FAULT An alarm message or a fault action and message is generated by an external fault external fault signal in one of the programmable digital inputs (DI3 by default) using parameters M3.5.1.7 and...
  • Page 145 Honeywell • 73 HVAC A PPLICATION P cooling Overload area 100% Par. M3.9.8=40% Corner freq 100K2 8 Figure 14. Motor thermal current I curve M3.9.9 OTOR THERMAL TIME CONSTANT This is the thermal time constant of the motor. The bigger the motor, the bigger the time con- stant.
  • Page 146 Honeywell HVAC A • 74 PPLICATION Motor temperature Trip area 105% Motor Fault/alarm current M3.9.6 Time constant T *) Q = (I/I T ) 2 x (1-e -t/T ) Time Motor temperature Changes by motor size and adjusted with M3.9.9 100K13 Figure 15.
  • Page 147 Honeywell • 75 HVAC A PPLICATION Wait time Wait time Wait time Par.3.10.3 Par.3.10.3 Par .3.10.3 Fault trigger Alarm Reset 1 Reset 2 Autoreset Trial time Trial time Par. 3.10.4 Fault active Number of trials: (M3.10.5 = 2) 100K15.fh11 Figure 16. Automatic reset function...
  • Page 148 Honeywell HVAC A • 76 PPLICATION M3.12.1.9 EAD BAND HYSTERESIS M3.12.1.10 EAD BAND DELAY The PID controller output is locked if the actual value stays within the deadband area around the reference for a predefined time. This function will prevent unnecessary movement and wear on actuators, e.g.
  • Page 149 Honeywell • 77 HVAC A PPLICATION M3.12.2.7 LEEP FREQUENCY LIMIT M3.12.2.8 LEEP DELAY M3.12.2.9 UP LEVEL This function will put the drive into sleep mode if the frequency stays below the sleep limit for a longer time than that set with the Sleep Delay (M3.12.2.8). This means that the start com- mand remains on, but the run request is turned off.
  • Page 150 Honeywell HVAC A • 78 PPLICATION Level ref Outflow control Level control 100K20.fh11 Figure 19. Feedforward control M3.12.5.1 NABLE PROCESS SUPERVISION Actual value Upper limit M3.12.5.2) Reference Lower limit (M3.12.5.3) Delay (M3.12.5.4) 100K21.fh11 Regulating mode Alarm or fault Figure 20. Process supervision Upper and lower limits around the reference are set.
  • Page 151 Honeywell • 79 HVAC A PPLICATION PRESSURE LOSS COMPENSATION Pressure No flow Pipe length Position 1 Position 2 Figure 21. Position of pressure sensor If pressurizing a long pipe with many outlets, the best place for the sensor would probably be halfway down the pipe (Position 2).
  • Page 152 Honeywell HVAC A • 80 PPLICATION M3.12.6.1 NABLE SETPOINT M3.12.6.2 ETPOINT MAX COMPENSATION The sensor is placed in Position 1. The pressure in the pipe will remain constant when we have no flow. However, with flow, the pressure will drop farther down in the pipe. This can be com- pensated by raising the setpoint as the flow increases.
  • Page 153 Honeywell • 81 HVAC A PPLICATION PUMP SOFT FILL FUNCTION The Soft Fill function is used, for example, to avoid pressure pikes, the so-called "water ham- mers" in pipes when the drive starts to regulate. If not controlled, these pikes might lead to dam- aged pipes.
  • Page 154 Honeywell HVAC A • 82 PPLICATION MULTI-PUMP USE A motor/motors are connected/disconnected if the PID controller is not able to keep the process value or feedback within the defined bandwith around the setpoint. Criteria for connecting/adding motors (also see Figure 24): •...
  • Page 155 Honeywell • 83 HVAC A PPLICATION EXAMPLE OF THE INTERLOCK LOGIC: If the motor starting order is 1->2->3->4->5 Now, the interlock of motor 3 is removed, i.e. the value of parameter M3.5.1.27 is set to FALSE, the order changes to: 1->2->4->5.
  • Page 156 Honeywell HVAC A • 84 PPLICATION Mains Motor 1 Motor 2 Motor 3 Motor 1 control from relay Motor 2 control from relay Motor 3 control from relay NOT USED 100K25.fh11 Figure 25. Selection 1, Enabled: If the regulating motor needs to be included in the autochange or interlock logic make the con- nection according to Figure 26 below.
  • Page 157 Honeywell • 85 HVAC A PPLICATION Mains K1.1 K2.1 K3.1 Motor 1 Motor 2 Motor 3 Motor 1 control Motor 2 control Motor 3 control from relay from relay from relay K1.1 K2.1 K3.1 K1 .1 K2. 1 K3. 1 10 0K26 .fh 11...
  • Page 158 Honeywell HVAC A • 86 PPLICATION M3.14.4 UTOCHANGE Selection Selection name Description Disabled The priority/starting order of the motors is always 1-2-3-4- 5 in normal operation. It might have changed during run if interlocks have been removed and again, but the added priority/order is always restored after a stop.
  • Page 159 Honeywell • 87 HVAC A PPLICATION HVAC Application - Fault tracing When an unusual operating condition is detected by the drive control diagnostics, the drive ini- tiates a notification visible, for example, on the keypad. The keypad will show the code, the name and a short description of the fault or alarm.
  • Page 160 Honeywell HVAC A • 88 PPLICATION 3.7.3 Fault codes Fault Fault name Possible cause Remedy code Drive has detected too high a current (>4*I ) in the motor cable: Check loading. • sudden heavy load increase Check motor. • short circuit in motor cables Overcurrent Check cables.
  • Page 161 Honeywell • 89 HVAC A PPLICATION Fault Fault name Possible cause Remedy code DC-link voltage is under the voltage lim- its defined. In case of temporary supply • most probable cause: too low a voltage break reset the fault supply voltage and restart the drive.
  • Page 162 Honeywell HVAC A • 90 PPLICATION Fault Fault name Possible cause Remedy code Fieldbus com- The data connection between the field- Check installation and field- munication 1053 bus master and fieldbus board is broken bus master. fault Slot A fault...
  • Page 163 Honeywell • 91 HVAC A PPLICATION Fieldbus process data out Values to monitor through fieldbus are: Data Value Scale Process Data Out 1 Output frequency 0.01 Hz Process Data Out 2 Motor speed 1 rpm Process Data Out 3 Motor current 0.1 A...
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