SmartDrive VFD Installation Notes
Contents
1. sensor with a sensing range of 20 to 120 F would have a default wake up point of 45 F 25 of 20 120 F To set the wake up point to 76 F the Wake Up Level parameter would have to be changed to 56 76 F is 56 of the sensed range from 20 to 120 F Value should be slightly greater in cooling applications lower in heating applications than the PID reference setpoint value in order to provide a differential and prevent short cycling P2 1 18 Wake Up Function default 0 Note If the run contact is NOT closed the drive will not operate regardless of the Wake Up Level 0 Wake Up drive as input value falls BELOW the wake up level heating application 1 Wake Up drive as input value EXCEEDs the wake up level cooling application P2 2 32 Error value inversion default 0 No Inversion CRITIAL MUST MATCH APPLICATION 0 NO INVERSION REVERSE ACTING PID heating application pressure control 1 INVERTED DIRECT ACTING PID cooling application cooling tower fans The DISPLAYED input value SCALE DECIMAL PLACES and ENGINEERING UNIT may be changed such that the input sensor displays correctly Example A 4 20ma sensor with a range of 20 to 120 F would have a Minimum of 20 a Maximum of 120 a decimal of 1 and Engineering Units of F P2 2 46 Displayed Value Minimum at 0 of range default 0 P2 2 47 Displayed Value Maximum at 100 of range default 100 P2 2 482. Displayed Value decimal places default 1 P2 2 49 Displayed Value Engineering Units default 4 bar 8 PSI 16 F 0 none P3 4 PID reference default 0 0 PID SETPOINT as a of range of the input signal CRITICAL MUST MATCH APPLICATON For example If a 4 20 ma input temperature sensor calibrated for 20 120 F is used and a setpoint of 75 F is required the PID reference a k a setpoint as a PERCENTAGE of RANGE would be 55 which is equal to 75 F 20 ma 120 F 12 ma 70 F 4ma 0 50 100 Honeywell VFD tips 1 4 doc Page 2 of 3 Using Honeywell NXL NXS LON option card Notes e Reference the VACON Lon OPTION C 4 LONWORK USER s MANUAL e The option card does NOT include a service pin o Setting the service pin is a software parameter function from the keyboard o Parameter G 7 5 1 1 set to 1 triggers a service pin signal Some data requires mathematical correction for proper readings Other data point values are defined by individual status bits Common LON data points with correction factors where applicable NvoDrvStatus Bit 0 Not Ready 0 Ready 1 NvoDrvStatus Bit 1 Stopped 0 Running 1 NvoDrvSiatus Bit 2 Clockwise 0 CounterClockwise 1 NvoDrvSiatus Bit 3 No Fault 0 Fault Active 1 NvoDrvStatus Bit 4 No Warning 0 Warning 1 NovDrvStatus Bit 5 Not at reference speed 0 At reference speed 1 NvoProcessOut
3. 1 2 0 Output Frequency Hz NvoProcessOut2 200 0 Output Speed rpm NvoProcessOut3 20 0 Output Current amps NvoProcessOut4 20 0 Motor Torque NvoProcessOut5 20 0 Output Power NovProcessOut6 20 0 Output Voltage volts NvoProcessOut7 200 0 DC Link Voltage volts Example programming wire sheet nvoDrvStatus_bitO e Boolean Point nvoDrvStatus_bit1 O Boolean Point Out False fok nvoDrvStatus_bit3 e Boolean Point nvoDrvRunHours O Numeric Point nciNmlFreq Numeric Writable Out 59 He ok del nvoActF ault nciNmlSpeed O Numeric Writable Numeric Point Out 3450 rpm ok amp Into null Inde rl ESS k Boolean Writable nyoDryPwr oO Out False ok del Numeric Point Out 0 0 ki ok Into fr Inde nl EE nvoDrvCurnt oO Numeric Point Out 0 0 4 ok nvoDrvSpeed O Numeric Point Out 0 ok Honeywell VFD tips 1 4 doc OutputFreq Fal nvoProcessOut1 Multipl Numeric Point Out 0 96 ok eee nvoProcessOut2 o Numeric Point E OutputCurrent nvoProcessOut3 O Multipl Numeric Point eae OutputPowerPct Multipl Ed Out 0 0 ok In amp 0 0 ok InB 20 0 ok ee OutputVoltage Multipl E nvoProcessOutS o Numeric Point Out 0 ok ee SS nvoProcessOut6 Numeric Point Out 0 ok a T Page 3 of 3
4. Honeywell Variable Speed Drives Typical Installation Tips and Notes 1 Drive selection Obtain motor nameplate information a ap Drives are sized by voltage and current not HP It is acceptable to use a drive with higher HP rating than the motor name plate if needed Verify the current capacity of the selected drive meets or exceeds the actual name plate motor rating and select a larger drive if required Verify voltage requirements Drive voltage range must match the motor application If using single phase input in lieu of 3 phase power feed de rate the drive selection per recommendations Radio Frequency Interference RFI and AC line chokes are required in most commercial applications When not provided as standard equipment purchase as an extra cost option HIGHLY recommended Verify physical space requirements Some drive and drive bypass filter combinations are large Allow for minimum clearances for ventilation and service per drive specifications Select NEMA 1 chassis for most commercial applications Open chassis models should be installed in separate ventilated cabinets Select a NEMA 12 drive chassis when installed in harsh environments Verify ambient operating temperatures do not exceed drive specifications Allow for extended lead time Some drives and drive bypass combinations have extended delivery times 2 Drive Installation READ the installation instructions before proceeding Farpapgy Verify drive match
5. ave 7 built in programs to choose from Use actual motor name plate information for all basic parameters e Set min max frequencies per the application e Typical accel decel times are 10 60 seconds for pumps 30 120 seconds for fans e Current LIMIT should be set to 1 5X the motor current name plate full load amps e Motor cos is equal to motor power factor from name plate if available Verify I O reference parameter I O reference selects the input signal location The default value is 0 analog input 1 2 10v but may be changed to 1 analog input 2 4 20ma keypad control 2 or network bus 3 System Menu gt Hardware settings gt Drive Cooling fan control parameter if provided may be changed from continuous to temperature control to prevent the VFD cooling fan from running continuously Verify drive auto restart and PID parameters see pg 2 meet specific application requirements if applicable 4 Verify Motor Operation connect motor leads a b C Check for faults A properly configured drive will not generate any fault code during normal operation If drive without bypass and motor rotates backwards swap the terminal connections of any two of the three drive output wires to reverse If drive with bypass and motor rotates backwards in the drive mode swap the terminal connections of any two of the three drive output wires to reverse If drive with bypass and motor rotates backwards in the bypass mode swap the terminal co
6. d reduce this value If a drive hunts for stable control double this value P2 1 13 Integral Time default 0 This is the time required to correct the offset between the controlled value and the setpoint This corrects for errors which occur using proportional gain alone Typical values are 100 to 600 seconds If a drive is slow to respond reduce this value If a drive hunts for stable control double this value P 2 1 14 Derivative Time default 0 Recommended to leave at 0 The default value of 0 is adequate for almost all HVAC applications P2 1 15 Sleep Frequency default 10 Hz This is the drive output frequency point where the drive will enter the sleep mode The value is used in conjunction with sleep delay wake up level and wake up function and is typically used in cooling tower applications to stop a fan once the condenser water temperature cools This value MUST be greater than the minimum drive frequency P2 1 1 in order to utilize this function P2 1 16 Sleep delay default 30 seconds The time the drive must operate beyond the sleep frequency before it enters the sleep mode P2 1 17 Wake Up Level default 25 This is the of range of the input sensor which will trigger a drive to wake up when operating in the sleep mode The actual sensed value is dependant upon the sensing range of the input device For example a 4 20 ma temperature
7. es the order Store and protect drive in a clean and dry location until installed Attempt to keep the wire length from the drive to the motor as short as possible to reduce interference Provide the proper sized conductors Do not use conductors that exceed the terminal size Provide a proper electrical ground per instructions Failure to do is unsafe and will cause interference Do NOT over torque the electrical connections They will break Follow the specifications Verify that main power feed is connected to the power INPUT terminals not the drive output terminals It is recommended that the output wires from the drive remain disconnected until after initial startup test Wire I O per application Typical I O control requires both analog speed control amp digital start stop signals e Analog Input 1 is the default selection and is preconfigured as 2 10v typically terminals 2 amp 3 e Analog Input 2 is preconfigured as 4 20ma typically terminals 4 amp 5 e Digital Input 1 is preconfigured as Run start stop typically terminals 6 amp 8 3 Configure Drive Parameters Initial power up with drive output wires disconnected g h On NXL drives if using NC DRIVE program the serial adapter works with ONLY the Honeywell serial cable On NXS drives using the digital display the start up wizard may be enabled from SYSTEM menu gt SECURITY submenu gt S6 5 3 Start up wizard On NXS drives Select drive application program NXS drives h
8. nnections of any two of the three main input wires to reverse check the drive and reverse the drive output terminal connections as well if needed If possible run motor to full speed and verify actual operating current does not exceed nominal current parameter setting Reduce maximum frequency if required to prevent current amp temperature faults Quickly reduce the motor speed Monitor displayed DC bus voltage If it rises motor is acting as a generator than increase the deceleration ramp time parameter Check for stable operation and functionality of all inputs and outputs Honeywell VFD tips 1 4 doc Page 1 of 3 Additional NXL and NXS PID Applications parameters These are some of the important parameters settings that must be considered when utilizing a drive s built in PID application These parameters control how the PID loop output error value 0 100 changes the drive speed min to max frequency in response to input signal changes and must be adjusted and tuned to meet the requirements and conditions of the actual NXS or NXL drive installation Note Parameter ID numbers shown may vary with selected application and version used P2 1 12 PID Gain default 100 This is the proportional gain a k a throttling range as a percentage of input If the input is a 0 5 wc sensor a PID Gain of 50 would result in a output value from 0 100 as the input changed 2 5 of wc beyond setpoint If a drive is slow to respon
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