Refer to the QuickLIT website for the most up-to-date version of this document.VFD68 Variable Frequency Drives (230 or 460VAC) Installation Instructions1Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3North American Emissions Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Agency Standards Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Checking the Rating Plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Selecting a Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Selecting a VFD68 Drive for Controlling Multiple Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Location Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Terminal Screw Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Branch Circuit Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Short Circuit Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14High-Voltage Wire Size and Maximum Wire Length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Selecting the Correct VFD68 Drive for a Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Calculating the Maximum Wire Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Making High-Voltage Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Making Low-Voltage Wiring Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Input Wiring Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Setup and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26Correspondences Between Digital and Actual Characters. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26VFD68 Variable Frequency Drives (230 or 460VAC)Installation InstructionsVFD68Bxx, VFD68CxxPart No. 24-7664-3108, Rev. EIssued October 2017VFD68 Variable Frequency Drives (230 or 460VAC) Installation Instructions2Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26RUN, MON, PRM LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27VFD68Bxx and VFD68Cxx Drive Basic and Advanced Parameters . . . . . . . . . . . . . . . . . . . . . 28Frequency and Motor Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Parameter Settings Calculations for Motor Speed vs. Pressure . . . . . . . . . . . . . . . . . . . . . . 32PWM Frequency, Audible Motor Noise, and EMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Adjusting the Default Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Enter the Parameter Adjustment Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Select and Change Most Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Select and Change C-Prefix Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Exit the Parameter Adjustment Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Configuring Manual Motor Speed Control in PU Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Configuring EXT Mode Using Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36Resetting the VFD68 Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Reset Option 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Reset Option 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Manually Stopping the Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Restarting the Motor After It Has Stopped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39VFD68Bxx or VFD68Cxx Variable Frequency Drive (230 or 460 VAC) . . . . . . . . . . . . . . . . . . . 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41VFD68 Variable Frequency Drives (230 or 460VAC) 3VFD68 Variable Frequency Drives (230 or 460VAC)IntroductionThe VFD68 Variable Frequency Drives are designed to provide three-phase motor speed control in a variety of HVACR applications. The VFD68Drives are factory-configured for condenser fan speed control on HVACR condensing units. You can quickly and easily reconfigure the VFD68 Drives to control variable speed pumps in cooling and heating applications, or to drive variable speed supply fans in VAV applications. This document provides information for VFD68Bxx (230 VAC) and VFD68Cxx (460VAC) Drive models only. For information pertaining to VFD68Dxx (575VAC) Drive models, refer to the VFD68 Variable Frequency Drive (575VAC) Installation Instructions (Part No. 24-7664-3116).Note:The VFD68 Drive cannot drive motors in conveyor systems or robotic applications.Note:Do not attempt to install, operate, maintain, or inspect the VFD68 Drive until you have read through this document carefully and can use the equipment correctly. Do not use this product until you fully understand the equipment, safety information, and instructions.To view the VFD68 Variable Frequency Drive Technical Bulletin (Part No. 24-7664-3051), which covers 230VAC, 460 VAC, and 575 VAC models, visit the following web address: http://cgproducts.johnsoncontrols.com/MET_PDF/2476643051.pdfNorth American Emissions ComplianceUnited StatesCanadaIMPORTANT:Use this VFD68 Variable Frequency Drive only as an operating control. Where failure or malfunction of the VFD68 Drive could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction of the VFD68 Drive.IMPORTANT : Utiliser ce VFD68 Variable Frequency Drive uniquement en tant que dispositif de régulation. Lorsqu'une défaillance ou un dysfonctionnement du VFD68 Drive risque de provoquer des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de défaillance ou de dysfonctionnement du VFD68 Drive.This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when this equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area may cause harmful interference, in which case users will be required to correct the interference at their own expense.This Class (A) digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulations.Cet appareil numérique de la Classe (A) respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.VFD68 Variable Frequency Drives (230 or 460VAC) 4Agency Standards Compliance•North America: cULus Listed; UL 508C, USA File: NMMS.E244421; Canada File: NMMS7.E244421•Europe: CE Mark - Conforms to the provisions of the Low Voltage Directive and the EMC Directive when an EMC-compliant line filter is attached to the power supply.1•Australia: Regulatory Compliance Mark (RCM)InstallationChecking the Rating PlateBefore you install the VFD, check the rating plate on the side to verify that the voltage, kW (horsepower), and output current ratings are correct for your application. See Figure1, Table1, and Selecting the Correct VFD68 Drive for a Fan Motor on page 15. 1.For more information, see Appendix 5: EMC Line Filter Selection Chart in the VFD68 Variable Frequency Drive Technical Bulletin (Part No. 24-7664-3051).Table 1: VFD68 Drive Model InformationVoltagekW (Horsepower)Dimensions, H x W x D, mm (in.)B200–240 VAC, 50/60 Hz0.1 (1/8)128 x 68 x 81 (5 x 2-11/16 x 3-3/16)C400–480 VAC, 50/60 Hz0.2 (1/4)128 x 68 x 113 (5 x 2-11/16 x 4-7/16)D0.4 (1/2)128 x 68 x 133 (5x 2-11/16 x 5-1/4)F0.75 (1)128 x 108 x 130 (5 x 4-1/4 x 5-1/8)G1.5 (2)128 x 108 x 136 (5 x 4-1/4 x 5-5/16)H2.2 (3)128 x 108 x 156 (5 x 4-1/4 x 6-1/8)J3.7 (5)128 x 108 x 166 (5 x 4-1/4 x 6-1/2)K5.5 (7-1/2)128 x 170 x 142 (5 x 6-11/16 x 5-5/8)L7.5 (10)150 x 220 x 155 (5-15/16 x 8-11/16 x 6-1/8)M11 (15)150 x 140 x 136 (5-15/16 x 5-1/2 x 5-5/16)N15 (20)150 x 220 x 148 (5-15/16 x 8-11/16 x 5-13/16)P260 x 220 x 190 (10-1/4 x 8-11/16 x 7-1/2)Figure 1: Rating PlateRating plateVFD modelInput ratingOutput ratingSerial numberDATE:XXXX-XXProduction year and monthJohnson ControlsVFD68-2CVoltageKilowatts(Horsepower)Dimensions H x W x DFIG:VFD68_rtng_pltSERIAL :OUTPUT : XXXXINPUT : XXXXMODELVFD68 Variable Frequency Drives (230 or 460VAC) 5For example, a VFD68BGG would be rated for 200–240 VAC and 2horsepower. Selecting a Motor Motors used with the VFD68Bxx or VFD68Cxx Drive must: •be AC induction three-phase motors that are UL Recognized and CSA Certified, or equivalent•be rated for: 230 VAC at 50/60 Hz; or 460 VAC at 50/60 Hz •have an Inverter Rating (460 VAC motors)•have Insulation Class F or betterThe VFD68 Drive is intended for use with variable speed motors that are rated for 40:1 operation.Note:If three-phase power is not available as supply power for the VFD68 Drive, refer to the VFD68 Variable Frequency Drive Technical Bulletin (Part No. 24-7664-3051).Selecting a VFD68 Drive for Controlling Multiple MotorsA VFD68 Drive can control multiple motors wired in parallel; however, the sum of the Full Load Amperes (FLA) ratings for the motors must not exceed the maximum output current rating of the VFD68 drive, including any de-rating due to altitude. See Table2 on page6 for derating information.Location Considerations IMPORTANT:Frequently starting and stopping the VFD shortens the lifespan of the VFD68Drive. In applications where the drive will start or stop frequently, select a VFD which has an output current rating that is 1.5 to 2 times greater than the FLA current rating of the three-phase motor.IMPORTANT: When selecting the motor, do not exceed the maximum output current rating of the VFD68Drive.IMPORTANT:Do not control both single-phase and three-phase motors with the same VFD68 Drive.!WARNING: Risk of Fire or Electric Shock.Install the device in an environment relatively free of contaminants such as dust, condensation, or chemical agents. A dirty or damp environment may cause an electric arc across contaminated terminals.AVERTISSEMENT: Risque de décharge électrique ou incendie.Installer l'appareil dans un environnement présentant une quantité réduite de contaminants tels que de la poussière, de la condensation ou des agents chimiques. Un environnement pollué ou humide risque d'entraîner la formation d'un arc électrique entre des bornes contaminées.!CAUTION: Risk of Property Damage.The VFD68 Drive can generate and dissipate significant heat. Mount the VFD68 Drive on a metal, concrete, or cinder block mounting surface. Mounting the VFD68 Drive on surfaces made of wood or other heat-sensitive material may result in damage to the mounting surface.MISE EN GARDE: Risque de dégâts matériels.Le VFD68 Drive peut générer et émettre une chaleur importante. Installer le VFD68Drive sur une surface de montage en métal, en béton ou en parpaings. L'installation du VFD68 Drive sur une surface en bois ou composée de matériaux sensibles à la chaleur risque d'endommager la surface de montage.VFD68 Variable Frequency Drives (230 or 460VAC) 6Observe the following location guidelines:•Ensure that the mounting surface can support the drive, mounting hardware, and any user-supplied panel or enclosure.•Mount drives on flat, even surfaces.•Allow sufficient space for wires and connections.•Do not mount the modules on surfaces that are prone to vibration or in locations where radio frequency or electromagnetic emissions may cause interference.•Do not install the modules in airtight enclosures.•Do not install heat-generating devices that may cause the temperature to exceed the ambient operating limit in the same enclosure as the modules.The VFD68 Drive has been approved for use in an enclosure. Approval tests were conducted under the conditions in Table2. When mounting the VFD68 Drive in an enclosure, ensure that the specified space around the drive is maintained, and that the ambient conditions are within the specified limits. IMPORTANT:The VFD68 Drive is intended to be mounted in an enclosure that only allows access by trained and authorized personnel, and that prevents the ingress of contamination. It is designed for use in an environment classified as pollution degree 2 in accordance with IEC 60664-1. This means that only dry, non-conducting contamination is acceptable.Table 2: Environmental ConsiderationsSurrounding Air Temperature11.Surrounding air temperature is a temperature measured at a measurement position in an enclosure. Ambient air temperature is a temperature outside an enclosure. The VFD68 is designed to operate above 50°C by following the maximum output current derating limits show in Table3 and Table4 and Figure2. -40 to 50°C (-40 to 122°F)as measured 5 cm from the VFDAmbient Humidity90% RH or less (Non-condensing)Storage Temperature-40 to 65°C (-40 to 149°F)AtmosphereIndoors (no corrosive and flammable gases, oil mist, dust and dirt.)Altitude Limit2: Below 1,000 m (3,280 ft) above sea level2.Altitude limit given is for standard operation of the VFD. For operation at higher altitudes, derate by 3% for each 500 m (1,640.4 ft), up to a maximum of 2,500 m (8,202 ft) (91% derating).Vibration Limit: 5.9 m/s2 (19.4 ft/s2) or less at 10–55 Hz (directions of x, y, z axes)VFD68x = Measurement Position5 cm(2 in.)5 cm(2 in.)5 cm(2 in.)xxxFIG:temp_loc_diagVFD68 Variable Frequency Drives (230 or 460VAC) 7.Table 3: Maximum Current Output Derating above 50°C by VFD68Bxx Drive ModelVFD68Bxx ModelsRated Capacity kW (HP) Maximum Output Current at 50°C (Amperes)Maximum Output Current at 60°C (Amperes)Maximum Output Current at 70°C (Amperes)VFD68BBB0.1 (1/8)0.80.60.5VFD68BCB0.2 (1/4)1.41.10.9VFD68BDC0.4 (1/2)2.52.11.7VFD68BFD0.75 (1)4.23.52.9VFD68BGG1.5 (2)7.05.94.9VFD68BHG2.2 (3)10.08.57.0VFD68BJK3.7 (5)16.514.011.5VFD68BKL5.5 (7-1/2)23.820.216.6VFD68BLL7.5 (10)31.827.022.2VFD68BMP11 (15)45.038.231.5VFD68BNP15 (20)58.049.340.6Table 4: Maximum Current Output Derating above 50°C by VFD68Cxx Drive ModelVFD68Bxx ModelsRated Capacity kW (HP) Maximum Output Current at 50°C (Amperes)Maximum Output Current at 60°C (Amperes)Maximum Output Current at 70°C (Amperes)VFD68CDF0.4 (1/2)1.21.00.8VFD68CFF0.75 (1)2.21.81.5VFD68CGG1.5 (2)3.63.02.5VFD68CHH2.2 (3)5.04.23.5VFD68CJJ3.7 (5)8.06.85.6VFD68CKL5.5 (7-1/2)12.010.28.4VFD68CLL7.5 (10)16.013.611.2VFD68CMP11 (15)23.019.616.1VFD68CNP15 (20)29.525.020.6Figure 2: VFD68Bxx and VFD68Cxx Maximum Current Output Derating above 50°C VFD68 Variable Frequency Drives (230 or 460VAC) 8Dimensions Table 5: Three-Phase 230 VAC Models, mm (in.)VFD ModelHH1WW1DVFD68BBB128 (5.04)118 (4.65)68 (2.68)56 (2.20)80.5 (3.17)VFD68BCBVFD68BDC112.5 (4.43)VFD68BFD132.5 (5.22)VFD68BGG108 (4.25)96 (3.78)135.5 (5.34)VFD68BHGVFD68BJK170 (6.69)158 (6.22)142.5 (5.61)VFD68BKL150 (5.91)138 (5.43)220 (8.66)208 (8.19)155 (6.10)VFD68BLLVFD68BMP260 (10.23)244 (9.61)220 (8.66)195 (7.68)190 (7.48)VFD68BNPTable 6: Three-Phase 460 VAC Models, mm (in.)VFD ModelHH1WW1DVFD68CDF128 (5.04)118 (4.65)108 (4.25)96 (3.78)129.5 (5.10)VFD68CFFVFD68CGG135.5 (5.34)VFD68CHH155.5 (6.12)VFD68CJJ165.5 (6.52)VFD68CKL150 (5.91138 (5.43)220 (8.66)208 (8.19)155 (6.10)VFD68CLLVFD68CMP260 (10.23)244 (9.61)220 (8.66)195 (7.68)190 (7.48)VFD68CNPFigure 3: Dimensions for VFD68 Drives, 230–460 VAC ModelsVFD68 Variable Frequency Drives (230 or 460VAC) 9Mounting1.Loosen the screws on the front cover and remove the cover (Figure4). 2.Remove the high-voltage wiring cover at the bottom of the VFD68 Drive (Figure5).Figure 4: Loosen the Cover Screws and Remove the Front Cover CoverScrewsCoverScrew1)1)2)2)Cover LatchFIG:cvr_rmvlFigure 5: Remove the High-Voltage Wiring CoverGuideGuideWiringCoverGuideGuideWiringCover!Warning: Risk of Electric ShockFIG:RMV_CVRNext >