VARIOspeed® N1 User Manual
Contents
1. Note HP rating is based on standard NEMA B 4 pole motor used for indication only use nameplate FLA for sizing The output voltage of the VFD cannot exceed the incoming voltage Example 208V in 208V out max Selecting the Correct VFD 1 Determine the voltage available on site 2 Select apump with the same voltage motor must be 3 phase 3 Check pump motor nameplate Full Load Amps FLA for proper VFD sizing 4 Select a VFD with an output amp rating higher than motor FLA 5 Use motor Service Factor Amps SFA for submersible well pump applications for VFD sizing Phase Conversion It is possible to supply single phase 240V input power to VS23 models The VFD output amp must be derated by 50 Example The VS23 45 0 N1 will be derated to 22 5A output max Use three phase input power if available VS23 VFD s are not UL listed with single phase supply Always use a 3 phase motor Maximum Motor Cable Lengths For 208V 240V pumps 400 ft For cable lengths greater than 400 ft use a load reactor Do not exceed 800 ft For 480V pumps 50 ft For cable lengths greater than 50 ft use a load reactor Do not exceed 300 ft Line Load Reactors Indoor outdoor rated Supplied separately A Line Reactor is connected between the line power and VFD input It is used for VFD protection and noise reduction A Load Reactor is connected between the VFD output and the motor It is used for motor protection and noise reduction Mount reacto2. G MENU Set Start Di Pres Set Motor OL Amps ISetXaucerMar ng fViewystemFautlg setMin Frequeny pp SetMax reque pg VARIOspeed N1 User Manual 5 OFF AUTO Operation OFF position The pump will not run AUTO position The pump will not run if the pressure is above the Set Pressure The pump will start automatically if the pressure drops below the Set Pressure less the Start Diff Press Example If the Set Pressure is 40 PSI and the Start Diff Pressure is 5 PSI The pump will start when the pressure drops below 35 PSI see example below Motor Hz Set Pressure Discharge Pressure 40 Pressure PSI Set Press Start Press Hz Start Pressure Level wi Pump Start 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Sec Pressure Transducer Fail Shutdown In the event that the pressure transducer signal should be lost the system will shut the pump off During the transducer fail error the display will flash SENSOR FAILURE on the main display and the fault indicator will illuminate If the transducer failure is corrected the display will return to its normal condition and normal pressure control will resume Parameter Setup List SETTING DESCRIPTION RANGE DEFAULT 6 VARIOspeed N1 User Manual Parameter Setup List Set Pressure Set Pressure is the target pressure to be maintained at the p
3. OND NOCONNECTION I I 480VAC 3 PHASE INCOMING POWER 12 VARIOspeed N1 User Manual Installation Variable Frequency Drive VFD Ground Terminal Motor Input Cable Power Conduit Pressure Conduit Transducer Cable VARIOspeed N1 User Manual 13 Notes 14 VARIOspeed N1 User Manual Notes VARIOspeed N1 User Manual 15 Notes ERthombus 22650 County Highway 6 PO Box 1708 M Detroit Lakes MN 56502 Toll Free 1 888 DIAL SJE 1 888 342 5753 IN Phone 218 847 1317 M Fax 218 847 4617 www sjerhombus com PN 1041318C OSJE Rhombus 11 14 16 VARIOspeed N1 User Manual
4. VARIOspeed N1 User Manual This VARIOspeed N1 controller is designed to provide constant pressure control for your pumping system Should you need to make minor adjustments please consult the parameter table enclosed in this document Consult the factory for assistance Pressure Booster Pump Application Deep Well Submersible Pump Application Pressure Pressure Tank Transducer 3 Phase Pump Motor Pressure Pressure Incoming Tank Transducer Power 9 Phase Motor Incoming Power VARIOspeed N1 User Manual 1 A WARNINGS Failure to read and understand the information provided in this manual may result in personal injury or death damage to the product or product failure Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given Failure to follow these precautions could result in serious injury or death Keep these instructions with warranty after installation This product must be installed in accor dance with National Electrical Code ANSI NFPA 70 so as to prevent moisture from entering or accumulating within the controller housing See additional specifications on page 3 of this manual WARNING ELECTRICAL SHOCK HAZARD Disconnect power to the VARIOspeed N1 VFD and wait 10 minutes before removing the VFD cover A qualified service person must in
5. dit setting values Left Button en ford VAR O speed N 1 editing Constant Pressure Control AUTO OFF Switch Programming Examples Changing the Motor Overload Amps 1 From the main display press the Left or Enter button to enter the settings menu gt Set Pressure Set Start Diff Press Set Motor OL Amps Set Motor Voltage 2 Rotate the rotary selector until the selection arrow highlights Set Motor OL Amps Set Pressure Set Start Diff Press gt Set Motor OL Amps Set Motor Voltage VARIOspeed N1 User Manual Programming Examples 3 Press the rotary selector to enter Overload Amps editing Set Motor OL Amps Da Amps m t Us nameplate data Min 0 Max 60 4 Rotate the selector to begin editing the value Pressing the left arrow button will move the editing position left one digit This is useful when making large adjustments to the edited value quickly 4 4 A R 5 Press the rotary selector to save the edited value and exit the editing screen Or press the ESC button escape to exit the editing screen without saving 4 4 Set Pressure Set Start Diff Pres OR Re p Set Motor OL Amps Set Motor Voltage A K A K Set Motor OL Amps 13 3 Amps Us nameplate data Min 0 Max 60 5 If no further setting needs to be edited press the ESC button to return to the main display M Pressure 92 7 PSI gt Setpoint 93 0 PSI Run 47 6 Hz 22 6A SETUP PARAMETER LO
6. he tank regularly Initial Chargin Set Pressure PSI Pressure ro Psi A Pressure Relief Valve Must be Installed A pressure relief valve MUST be installed as close as possible to the pump discharge and plumbed to a drain able to handle the full flow of the pump in the event of a malfunction WARNING Failure to use a pressure relief valve could result in burst pipes and flooding if a system failure should occur VARIOspeed N1 User Manual Faults Alarms and Warning Codes MAIN DISPLAY MESSAGE DESCRIPTION OF FAULT ALARM COMMUNICATION LOST SENSOR FAILURE HIGH PRESS WARNING RUN DRY WARNING RUN DRY FAULT OVER CURR ACCEL OVER CURRENT OVER CURR DECEL OVER VOLTAGE I OVER VOLTAGE 2 OVER VOLTAGE 3 MOTOR OVERLOAD TAIP GROUND FAULT OUTPUT PHASE LOSS INRUSH CURRENT LIMIT INVALID ANALOG INPUT INPUT PHASE LOSS BRAKE XSTR ALARM VED EEPROM FAULT DISCONNECTED PU VED CPU FAULT OUTPUT AMPS DETECT SAFETY CIRCUIT FAULT IMPORTANT Faults can be reset by pressing the STOP RESET button on the VFD The OFF AUTO selector switch must be in the OFF position vvhen resetting any fault Please contact your distributor if you are unable to reset a fault by removing povver from the VFD and repovvering after one minute 10 VARIOspeed N1 User Manual Viewing Log Viewing Pump Motor Run Time Pump Motor Run Time 1234567 hours The accumulated run time of the motor can be viewed by accessing the View Run Time screen in the se
7. o stop due to a Dry Run Alarm Run Dry Delay Time Set the Dry Run Delay Time to the amount of time the VFD must be running at maximum output frequency while the system pressure is below the Dry Run Pressure before the VFD will stop due to a dry run alarm Run Dry Restart Time Set the Dry Run Restart Time to the amount of time the VFD will remain stopped due to a Dry Run alarm before restarting This time allows the well or water source to recharge before the system restarts If a manual restart is desired set the Dry Run Restart Time to 0 0 For a manual restart of the system the ESC button must be pressed for 2 seconds or the power must be cycled The display will indicate Dry Run Fault if a manual restart is required 8 VARIOspeed N1 User Manual Pressure Tank Pressure Relief Valve Low Pressure To maintain constant pressure and prevent frequent startup a small capacity pressure tank is needed in the system refer to the minimum capacity of pressure tank table below The VARIOspeed N1 controller may use a pressure tank of a larger capacity than listed on the table below Minimum Capacity of Pressure Tank Tank Size Flow Rate GPM Total Capacity Less than 12 0 4 Gallons More than 12 0 8 Gallons More than 50 0 14 Gallons Pre Charge Pressure 1 Initial charge pressure should be set at 70 of the system pressure Set pressure 2 To maintain the optimum pressure control check the air pressure in t
8. rease the Sleep Time lower the Sleep Frequency or increase the Start Pressure combination of changes of all three settings may be necessary If the VFD does not enter Sleep mode when there is no flow of water in the system the Sleep Frequency must be increased s Motor Hz Sleep Frequency Sleep time gt Minimum Hz Hz 8 Sleep Freq Motor Hz 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Sec Xducer Max Range If using a different transducer other than supplied set the Xducer Max Range to the full span rating of the pressure transducer The Set Pressure and Start Diff Pressure values must also be updated after changing the Xducer Max Range as these values are automatically scaled based on the Xducer Max Range Min Frequency The Min Frequency should be set to the minimum output frequency that the pump should be allowed to run Contact your pump manufacturer to obtain the pump safe operation ranges VARIOspeed N1 User Manual 7 Parameter Setup List Max Frequency The Max Frequency should be set to the maximum output frequency that the pump should be allowed to run Contact your pump and motor manufacturer for operation above 60 Hz PID Proportional Term The PID Proportional Term is intended to be adjusted by advanced users only The PID Proportional Term is used to adjust the reaction of the output f
9. requency to changes in the system pressure Decreasing the PID Proportional Term will allow the VFD to make larger corrections to the output frequency with differences between the Set Pressure and actual system pressure Increasing the PID Proportional Term will allow the VFD to make smaller corrections to the output frequency with differences between the Set Pressure and actual system pressure PID Integral Term The PID Integral Term is intended to be adjusted by advanced users only The PID Integral Term is used to adjust how quickly the output frequency reacts to changes in the system pressure Decreasing the PID Integral Term will allow the VFD to make quicker corrections to the output frequency with differences between the Set Pressure and actual system pressure Increasing the PID Integral Term will allow the VFD to make slower corrections to the output frequency with differences between the Set Pressure and actual system pressure 1st Accel Time Set the 1st Accel Time to the rate at which the output frequency will accelerate from 0 Hz to the Accel 2 Switchover Frequency This time is based on the time the VFD would take to accelerate from 0 Hz to 60 Hz Example If the pump is required to accelerate from stop to 30 Hz in 1 second the ist Accel Time should be set to 2 seconds 1st Decel Time Set the 1st Decel Time to the rate at which the output frequency will decelerate from the Accel 2 Switchover Frequency to a stop This rate is based on the
10. rs as close as possible to the VFD Reactors will increase voltage drop and may impact pump performance Consult factory for selection PART LINE LOAD DIMENSIONS ELECTRICAL SHIP NUMBER REACTORS ae AU NEE AXBXC inches DATA WEIGHT 1041535 LR23 16 5 N3R VS21 7 0 N1 VS21 10 0 N1 VS23 16 5 N1 12X12X10 18A 0 8mH 37 lbs 1041536 LR23 45 0 N3R VS23 31 8 N1 VS23 45 0 N1 12X12X10 55A 0 27mH 46 Ibs 1041537 LR23 58 0 N3R VS23 58 0 N1 12X12X10 83A 0 17mH 47 lbs 1041538 LR43 16 0 N3R V543 16 0 N1 12X12X10 21A 1 8mH 38 Ibs 1041539 LR43 29 5 N3R VS43 29 5 N1 12X12X10 35A 0 71mH 41 Ibs Enclosure up to 5HP measures 14 54 x 8 36 x 8 70 inches 36 93 x 21 23 x 22 10 cm steel NEMA 1 for indoor use with locking latch Enclosure above to 5HP measures 18 54 x 10 36 x 10 74 inches 47 09 x 26 31 x 27 28 cm steel NEMA 1 for indoor use with locking latch Environmental Operating temperature 142F to 1042F 102C to 402C Storage temperature 4 F to 131 F 20 C to 55 C Altitude Maximum of 3280 ft 1000m above sea level VARIOspeed N1 User Manual 3 Display Features and Navigation Fault Indicator Run Indicator Current Pressure Output Frequency Set Point Pressure System Status Motor Current Escape Button Used to exit without saving setting values to return to the main monitor screen or to reset the system after a shutdown due to a Rotary Push Button Dry Run Fault Used to scroll through the menu and e
11. stall and service this product according to applicable codes and electrical schematics Lethal voltages are still present inside the VARIOspeed N1 VFD after power is disconnected Wait 10 minutes to allow internal capacitors to fully discharge before attempting to connect or disconnect wire or to service this equipment Do not connect incoming power to motor terminals U V W Doing so will result in irreversible damage to the drive Do not connect power to this equipment if it has been damaged or has any missing parts Verify that the incoming voltage supply matches the VFD rating before applying power to the unit The VARIOspeed N1 VFD contains no serviceable parts do not attempt to repair this equipment The VARIOspeed N1 VFD must be grounded at the grounding terminal according to N E C Refer to the electrical connection on page 12 Do not install in areas with excessive or conductive dust corrosive or flammable gas excessive heat regular impact shocks or excessive vibration Do into install in areas where ambient temperature exceeds 40 C 104 F NV Ula EXPLOSION OR FIRE HAZARD Do not use this product with flammable liquids Do not install in hazardous locations as defined by National Electrical Code ANSI NFPA 70 2 VARIOspeed N1 User Manual Specification Selection PART OUTPUT INPUT OUTPUT SHIP NUMBER DESCRIPTION MODEL AMPS HP PHASE PHASE WEIGHT 1041350 VARIOspeed N1 240V VS21 7 0 N1 1041357
12. time the VFD would take to decelerate from 60 Hz to 0 Hz Example If the pump is required to decelerate from 30 Hz to a stop in 4 seconds the 1st Decel Time should be set to 8 seconds Accel 2 Switchover Frequency The Accel 2 Switchover Frequency should be set to the frequency at which the acceleration and deceleration rates change This is typically used on submersible type pumps where the manufacturer requires a fast acceleration from a stop to 30 Hz for proper thrust bearing operation Accel Decel Time Set the Accel Decel Time to the rate at which the output frequency will change as the VFD is operating above the Accel 2 Switchover Frequency This time is based on the time the VFD would take the accelerate or decelerate between 0 Hz to 60 Hz High Pressure Set the High Pressure Alarm setting to the pressure at which the VFD output will shut off due to high system pressure There is a 2 second delay before the VFD will activate the High Pressure Alarm If system pressure drops below the High Pressure alarm setting for 10 seconds the high pressure alarm will automatically reset and normal operation of the VFD will resume Run Dry Pressure Set the Dry Run Pressure to the low pressure setting that will indicate the pump cannot build pressure due to the lack of supply water The VFD must be running at maximum output frequency and the system pressure must be below the Dry Run Pressure for the amount of time set in Dry Run Delay Time for the VFD t
13. tting menu The run time is displayed in total hours run Viewing VFD Fault History VFD OVERLOAD TRIP STALL PREVENTION VFD OVERLOAD TRIP VFD OVERLOAD TRIP The VFD fault history can be viewed by accessing the VFD Fault History screen in the settings menu The last eight faults can be viewed by scrolling through the VFD Fault History screen with the most recent faults first If a fault is currently active the fault will flash on the main screen Viewing System Fault Log Time Since Fault H Press 42d 16 23 42 Run Dry No Faults Sensor No Faults The System Fault Log can be viewed by accessing the View Sys Fault Log screen in the settings menu The System Fault Log shows the length of time since a HIGH PRESSURE CONDITION RUN DRY CONDITION or SENSOR FAILURE occurred If no fault has occurred the No Faults message is shown VARIOspeed N1 User Manual 11 Terminal Connections 240 VAC CONTROLLERS O O NOTE When connecting O single phase power use 9 Sem terminals L1 and L2 only O O o Terminal L3 is left unused se DEE fange PRESSURE 3 PHASE are MODELS fa ps ONLY o RILA S L2 T L3 a GJ U 8 T NO CONNECTION i I I I I 4 l I l L 208 240VAC INCOMING POWER 480 VAC CONTROLLERS Donn CHE TOC den PRESSURE TRANSDUCER tor SES GR
14. ump discharge It cannot exceed the maximum range of the pressure transducer Start Diff Pressure The Start Diff Pressure is the amount of pressure drop from the Set Pressure at which the VFD will wake from sleep and run to maintain the system pressure The pump will start if the pressure drops below the Set Pressure less the Start Diff Pressure Example If the Set Pressure is 40 PSI and the Start Diff Pressure is 5 PSI the pump will start when the pressure drops below 35 PSI Motor OL Amps The VFD s electronic overload will signal an overload fault and protect the motor from damage in the event of an overload condition Set the Motor OL Amps setting to the motor nameplate Full Load Amps for non submersible pumps and to the Motor Max Amps for submersible pumps Motor Voltage Set the Motor Voltage setting to the voltage rating found on the motor nameplate This value must not exceed the voltage of the incoming power Sleep Frequency Set the Sleep Frequency to the frequency at which the pump no longer builds pressure when operating at or near the Set Pressure The VFD will enter the sleep mode when the output frequency of the VFD drops below the Sleep Frequency for a period of time Sleep Time Sleep Time Set the Sleep Time to the amount of time that the VFD will wait before entering Sleep mode after the output frequency drops below the Sleep Frequency Note If the system cycles on and off too frequently try the following inc
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