Johnson Controls Penn VFD68D Series Technical Bulletin
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Johnson Controls Penn VFD68D Series Technical Bulletin

Johnson Controls Penn VFD68D Series Technical Bulletin

Variable frequency drive
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VFD68 Variable Frequency Drives
Technical Bulletin
VFD68Bxx, VFD68Cxx, VFD68Dxx
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
North American Emissions Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Agency Standards Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Agency Standards Compliance for VFD68Dxx Drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Checking the Rating Plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Selecting a Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Selecting a VFD68 Drive for Controlling Multiple Motors . . . . . . . . . . . . . . . . . . . . . . . . 7
Dimensions for VFD68Bxx and VFD68Cxx Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Dimensions for VFD68Dxx Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mounting the VFD68Bxx and VFD68Cxx Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mounting the VFD68Dxx Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Terminal Screw Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Branch Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Short Circuit Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
High-Voltage Wire Size and Maximum Wire Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Selecting the Correct VFD68 Drive for Your Fan Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Refer to the
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
VFD68 Variable Frequency Drives Technical Bulletin
Part No. 24-7664-3051, Rev. C
QuickLIT website
for the most up-to-date version of this document.
1
Issued October 2017

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  • Page 1: Table Of Contents

    VFD68 Variable Frequency Drives Technical Bulletin VFD68Bxx, VFD68Cxx, VFD68Dxx Part No. 24-7664-3051, Rev. C Issued October 2017 Refer to the QuickLIT website for the most up-to-date version of this document. Introduction ............5 North American Emissions Compliance .
  • Page 2 Calculating the Maximum Wire Length ........22 High-Voltage Wiring Connections .
  • Page 3 VFD68Bxx and VFD68Cxx Drives ..........57 VFD68Dxx Drives .
  • Page 4 Outline..............92 Message Format.

  • Page 5: Introduction

    VFD68 Variable Frequency Drives Introduction The VFD68 Variable Frequency Drives are designed to provide three-phase motor speed control in a variety of HVACR applications. The VFD68 drives 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.

  • Page 6: Agency Standards Compliance For Vfd68Dxx Drives

    See Figure 1, Table 1, and Selecting the Correct VFD68 Drive for Your Fan Motor on page 20. Production year and month Rating plate Johnson Controls DATE:XXXX-XX VFD model MODEL Input rating...

  • Page 7: Selecting A Motor

    Selecting a Motor IMPORTANT: When selecting the motor, do not exceed the maximum ampere rating of the VFD68 drive. Motors used with the VFD68 drive must: • be AC induction three-phase motors that are UL Recognized and CSA Certified, or equivalent •...

  • Page 8: Location Considerations

    Location Considerations 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...
  • Page 9 Table 3: Environmental Considerations Surrounding Air -40 to 50°C (-40 to 122°F) as measured 5 cm from the VFD Temperature VFD68 5 cm 5 cm (2 in.) (2 in.) 5 cm (2 in.) x = Measurement Position Ambient Humidity 90% RH or less (Non-condensing) Storage Temperature -40 to 65°C (-40 to 149°F) Atmosphere...
  • Page 10 Table 5: Maximum Current Output Derating above 50°C by VFD68Cxx Drive Model VFD68Bxx Models Rated Capacity Maximum Output Maximum Output Maximum Output kW (HP) Current at 50°C Current at 60°C Current at 70°C (Amperes) (Amperes) (Amperes) VFD68CDF 0.4 (1/2) VFD68CFF 0.75 (1) VFD68CGG 1.5 (2)

  • Page 11: Dimensions For Vfd68Bxx And Vfd68Cxx Drives

    Dimensions for VFD68Bxx and VFD68Cxx Drives Figure 3: Dimensions for VFD68 Drives, 230–460 VAC Models Table 7: Three-Phase 230 VAC Models, mm (in.) VFD Model VFD68BBB 128 (5.04) 118 (4.65) 68 (2.68) 56 (2.20) 80.5 (3.17) VFD68BCB VFD68BDC 112.5 (4.43) VFD68BFD 132.5 (5.22) VFD68BGG...

  • Page 12: Dimensions For Vfd68Dxx Drives

    Dimensions for VFD68Dxx Drives Figure 4: Dimensions for VFD68Dxx Drives, mm (in.) Table 9: Dimensions for VFD68Dxx Drives, mm (in.) VFD Model VFD68DFM 150 (5-15/16) 138 (5-7/16) 140 (5-1/2) 128 (5-1/16) 136 (5-3/8) VFD68DGM VFD68DHM VFD68DJN 228 (8-11/16) 208 (8-3/16) 148 (5-13/16) VFD68DKN VFD68DLN...

  • Page 13: Mounting

    Mounting Mounting the VFD68Bxx and VFD68Cxx Drives 1. Loosen the screws on the front cover and remove the cover (Figure 5). Cover Screw Cover Latch Cover Screws Figure 5: Loosen the Cover Screws and Remove the Front Cover 2. Remove the high-voltage wiring cover at the bottom of the VFD68 drive (Figure 6). Warning: Risk of Electric Shock Guide Guide...
  • Page 14 Mount the VFD vertically (Figure 7) in an acceptable NEMA-rated enclosure on a non-flammable surface. When you drill mounting holes and mount the VFD, ensure that you do not allow metal chips or other material to enter the VFD housing. 1/8 to 1 HP, 230 VAC 2 to 10 HP, 230 VAC 1/2 to 10 HP, 460 VAC...

  • Page 15: Mounting The Vfd68Dxx Drives

    Mounting the VFD68Dxx Drives 1. To remove the front cover, push down on the hooks at Position A and Position B and pull the front cover away from the VFD68 drive, using the hooks at Position C as supporting points (Figure 9). Figure 9: Release the Hooks and Remove the Front Cover 2.

  • Page 16: Wiring

    See Figure 11 and Table 11 for mounting space requirements. 3.7 kW (5 HP) or Less 5.5 to 7.5 kW (7-1/2 to 10 HP) Front Side Front Side Figure 11: Required Clearance for Mounting Inside an Enclosure Table 11: Required Clearance Dimension 3.7 kW (5 HP) or Less 5.5 to 7.5 kW(7-1/2 to 10 HP)
  • Page 17 WARNING: Risk of Electric Shock. To avoid possible electric shock, wait at least 10 minutes after the AC supply power has been disconnected from the VFD68 Drive before servicing the device. The VFD68 Drive remains electrically charged for a period of time after power is removed. Failure to wait until the VFD68 Drive fully discharges could cause electric shock, personal injury, or death.

  • Page 18: Precautions

    Precautions Before you apply power to the VFD68 drive and controlled motor, always recheck the following items: • Connect the VFD only to three-phase induction motors. Connecting the VFD to other electrical equipment may cause damage. • Applying power to the output terminals (U, V, W) of the VFD will damage the VFD. Never connect supply power to the drive’s output terminals.

  • Page 19: Terminal Screw Torque Specifications

    Terminal Screw Torque Specifications Tighten the terminal screw to the specified torque. Overtightening the terminal screws may damage the terminal blocks and screw threads. Loose terminal screw connections can result in a short circuit or malfunction. Table 12: Torque Specifications for VFD66Bxx Drives Rated Capacity, kW (HP) Tightening Torque, N•m (lb•in.) Terminal Screw Size...

  • Page 20: Short Circuit Ratings

    Table 16: VFD68Cxx Electrical Ratings 460 VAC kW (HP) 0.75 (1/2) (7.5) (10) (15) (20) Rated fuse voltage (V) 480 V or more Fuse maximum allowable rating (A) (without power factor improving  reactor) Molded case circuit breaker (MCCB) Maximum allowable rating Maximum allowable rating by US National Electrical Code.
  • Page 21 3. In the table that you just selected, find the maximum output current that just exceeds the motor’s maximum current consumption and use the VFD68 Part Number associated with this maximum output current as the recommended Drive for the motor. 4.

  • Page 22: Calculating The Maximum Wire Length

    Table 21: 575 VAC, VFD68Dxx Drives, Maximum Output Amperes and Wiring Sizes Part Rated Maximum Cable Wire Size Number Capacity, Output PVC wires, (mm Current (HP) R/L1, S/L2, U, V, W R/L1, S/L2, U, V, W Earthing (Amperes) T/L3 T/L3 (Ground) Cable VFD68DFM 0.75 (1)
  • Page 23 3. Use Figure 12 to determine the maximum recommended wiring length for the VFD68 drive. (11.55 * V) Maximum Wire Length = (I * R) V = Voltage rating (230 or 460 VAC) I = Maximum output current (Amps) R = Electrical resistance of the wire (milliohms/meter) Figure 12: Maximum Wire Length Calculation Note:...

  • Page 24: High-Voltage Wiring Connections

    High-Voltage Wiring Connections Making High-Voltage Wiring Connections on VFD68Bxx and VFD68Cxx Drives 1. Loosen the screws on the front cover and remove the cover to access the low-voltage wiring (Figure 13). Cover Screw Cover Latch Cover Screws Figure 13: Loosen the Cover Screws and Remove the Front Cover 2.
  • Page 25 IMPORTANT: Use UL Listed copper, stranded wire with insulation rated at 75°C (167°F) for wiring in Step 3 and Step 4. See High-Voltage Wire Size and Maximum Wire Length on page 20. 3. For supplied three-phase power, connect the high-voltage power supply to terminals R/L1, S/L2, and T/L3 on the drive (Figure 15).

  • Page 26: Making High-Voltage Wiring Connections On Vfd68Dxx Drives

    Making High-Voltage Wiring Connections on VFD68Dxx Drives 1. Push down on the hooks at Position A and Position B and pull it away from the VFD68 drive, using the hooks at Position C as supporting points (Figure 16). Figure 16: Release the Hooks and Remove the Front Cover 2.
  • Page 27 IMPORTANT: Use UL Listed copper, stranded wire with insulation rated at 75°C (167°F) for wiring in Step 3 and Step 4. See High-Voltage Wire Size and Maximum Wire Length on page 20. 3. Connect a 575 VAC three-phase power supply to Terminals R/L1, S/L2, and T/L3 (Figure 18). For supplied three-phase power, connect the high-voltage power supply to terminals R/L1, S/L2, and T/L3 on the drive (Figure 18).

  • Page 28: Low-Voltage Wiring Connections

    Low-Voltage Wiring Connections Making Low-Voltage Wiring Connections on VFD68Bxx and VFD68Cxx Drives IMPORTANT: If using two input devices, both devices must be identical. Do not use input devices with different ranges and operating characteristics. Low-voltage wiring terminals are located underneath the front cover. See Figure 19 and Table 23. Volts: V SO S1 S2 AI2 Mode Switch...
  • Page 29 Table 23: VFD68Bxx and VFD68Cxx Drives Low-Voltage Connections Information (Part 2 of 2) Terminal Signal Type Description Label Safety Stop Common for S0, S1, and S2 terminals Common Common Common for + 24 VDC Supply and contact inputs (using Sink logic - default setting) Contact Input Run Low Speed Contact Input...
  • Page 30 3. Push down on the orange tab to open the terminal (Figure 21). IMPORTANT: Do not pull the wires out of the terminal block without pushing the orange tab all the way down. Pulling wires out of the low-voltage terminal block without opening the terminal may damage the terminal block or circuit board.

  • Page 31: Making Low-Voltage Wiring Connections On Vfd68Dxx Drives

    Making Low-Voltage Wiring Connections on VFD68Dxx Drives Low-voltage wiring terminals are located underneath the front cover. See Figure 22, Table 24, and Table 25. After you finish making the low-voltage wiring connections, replace the front cover (Figure 16 on page 26). Figure 22: VFD68Dxx Drives Connection Information Table 24: VFD68Dxx Drives Low-Voltage Connection Information for the Primary Board (Part 1 of 2) Terminal...

  • Page 32: Input Wiring Connections

    Table 24: VFD68Dxx Drives Low-Voltage Connection Information for the Primary Board (Part 2 of 2) Terminal Signal Type Description Label Relay Output (N.C.) During normal operation, relay contacts B and C are connected (maximum alarm load: 230 VAC, 0.3 A or 30 VDC, 0.3 A). Relay Output (C) Relay output common +5 V...
  • Page 33 0.5–4.5 VDC Ratiometric P499 Transducer The default parameter values (Table 34 on page 43) on the VFD68 drive are configured to operate a condenser fan motor on an R410 condensing unit, using a P499RCP-107 or P499RAP-107 ratiometric transducer (or transducers). Wire one transducer for single circuit condensing systems. Wire two transducers for dual circuit condensing systems (Figure 23).
  • Page 34 0–10 VDC P499 Transducer For applications using a 0–10 VDC P499V transducer, you must: • adjust the parameter values that are listed in Table 28 • ensure that the AI2 mode switch (Figure 19 on page 28) is set correctly •...
  • Page 35 4–20 mA P499 Transducer For applications using a 4–20 mA P499A transducer (Figure 25), you must: • set P.266 and P.267 to 0 • set the AI2 mode switch position to I (see VFD68Bxx and VFD68Cxx Drives on page 56) •...
  • Page 36 Making Input Wiring Connections on VFD68Dxx Drives Wire the input device to the analog input terminals (Table 26) and make any necessary parameter adjustments. See Setup and Adjustment on page 38 and Parameter Setting Calculations for Motor Speed vs. Pressure on page 49 for more information.
  • Page 37 0–10 VDC or 4–20 mA P499 Transducer For applications using a 0–10 VDC or 4–20 mA P499 transducer, you must: • change parameter values in Table 31 • calculate and change P.902 and P.903 (for 0–10 V operation) or P.904 and P.905 (for 4–20 mA operation), based on the desired operating pressure range and motor speed for the condensing fans on your application.

  • Page 38: Setup And Adjustment

    Setup and Adjustment IMPORTANT: If the LED display shows an error code, press STOP STOP and see Troubleshooting on page 58 RESET RESET for a list of fault or alarm indications, probable causes, and corrective actions. Correspondences Between Digital and Actual Characters The actual alphanumeric characters correspond to the following digital characters displayed on the operation panel: Actual...

  • Page 39: Vfd68Bxx And Vfd68Cxx Operation Panel

    VFD68Bxx and VFD68Cxx Operation Panel Operation Modes The VFD68 drive’s mode of operation is indicated by the mode of operation LEDs (labeled PU, EXT, and NET) on the drive’s operation panel (Figure 29). PU Mode: The Parameter Units (PU) mode is manual control mode. In PU mode, the drive and motor are completely controlled using the buttons and the setting dial on the drive’s user interface.
  • Page 40 RUN indicator LED Monitor indication RUN lit or flickering during operation. MON lit to indicate monitoring mode. On Steady: Motor running in forward rotation. Operation mode indication LEDs Lit to indicate PU manual operation Slow flash: Motor running in reverse rotation. mode.

  • Page 41: Vfd68Dxx Drives Operation Panel

    VFD68Dxx Drives Operation Panel Mode of Operation Icons The VFD68 drive’s mode of operation is indicated by the mode of operation icons (labeled PU and EXT) on the drive’s operation panel (Figure 30). PU Mode: The Parameter Units (PU) mode is manual control mode. In PU mode, the drive and motor are completely controlled using the buttons and the setting dial on the drive’s user interface.
  • Page 42 Table 32: Operation Panel Keys (Part 2 of 2) Description Used to determine the frequency and parameter settings. • Used to increase or decrease the running frequency consecutively. Hold down the key to change the frequency. • Used to change the parameter setting consecutively, when in the setting mode. Press the key to change the parameter setting.

  • Page 43: Vfd68Bxx And Vfd68Cxx Drive Basic And Advanced Parameters

    VFD68Bxx and VFD68Cxx Drive Basic and Advanced Parameters You can use the default parameter setting with the P499RxP-107C transducer and R410a refrigerant within a range of operation that depends on the specific model of P499 transducer selected. All other applications require some parameter changes and may require different transducers.
  • Page 44 Table 34: Basic and Advanced Parameter Descriptions for VFD68Bxx and VFD68Cxx Drives (Part 2 of 4) Parameter Description Range VFD68xxx- Indication 2 Defaults on Monitor P. 34 Frequency Jump 2B: To avoid resonance noise caused by 0 to 400 Hz, 9999 9999 natural frequency of mechanical system, enter frequency just above noisy frequency 2.
  • Page 45 Table 34: Basic and Advanced Parameter Descriptions for VFD68Bxx and VFD68Cxx Drives (Part 3 of 4) Parameter Description Range VFD68xxx- Indication 2 Defaults on Monitor P.161 Frequency Setting/Key Lock Operation Select: 10, 11 10 = change speed on dial, then press SET to change VFD speed;...

  • Page 46: Vfd68Dxx Drive Parameters

    Table 34: Basic and Advanced Parameter Descriptions for VFD68Bxx and VFD68Cxx Drives (Part 4 of 4) Parameter Description Range VFD68xxx- Indication 2 Defaults on Monitor Analog Input 1 - Input voltage to start minimum speed ramp 0–300% 1.90 V (38%) Analog Input 1 - Input voltage for setpoint (where motor 0–300% 2.74 V...
  • Page 47 Table 35: Parameter Descriptions for VFD68Dxx Drives (Part 2 of 3) Parameter Description Settings Default Indication Setting on Monitor P. 32 Frequency Jump 1B: Maximum frequency to skip over to 0–400 Hz, 9999 12.5 Hz avoid very low fan airflow and unnecessary motor overheating.

  • Page 48: Frequency And Motor Speed

    Table 35: Parameter Descriptions for VFD68Dxx Drives (Part 3 of 3) Parameter Description Settings Default Indication Setting on Monitor P.905 Analog Input 2: Maximum speed defined as frequency. 1–400 Hz 60 Hz (screen a) P.905 Analog Input 2: % of input current for setpoint (where motor 1–100% 54.8% (11 mA) (screen b)

  • Page 49: Parameter Setting Calculations For Motor Speed Vs. Pressure

    Figure 32: Frequency and Motor Speed (50 Hz) Parameter Setting Calculations for Motor Speed vs. Pressure Calculating C x Parameters for VFD68Bxx and VFD68Cxx Models – Figure 33: Applications Using 0.5 4.5 V Ratiometric Transducers VFD68 Variable Frequency Drives...
  • Page 50 – Figure 34: Applications Using 0 10 V Transducers – Figure 35: Applications Using 4 20 mA Transducers VFD68 Variable Frequency Drives...

  • Page 51: Calculating Parameters 902 To 905 For Vfd68Dxx Models

    Calculating Parameters 902 to 905 for VFD68Dxx Models Figure 36: Applications Using 0.5–4.5 V Ratiometric Transducers Figure 37: Applications Using 0–10 V Transducers VFD68 Variable Frequency Drives...

  • Page 52: Pwm Frequency, Audible Motor Noise, And Emi

    Figure 38: Applications Using 4–20 mA Transducers PWM Frequency, Audible Motor Noise, and EMI Using the default setting (P. 72 = 1, frequency = 1 kHz), electromagnetic interference (EMI) radiation and leakage current from the wiring between the VFD68 drive and the motor is low; however, there is a high level of audible motor noise.
  • Page 53 2. Turn the power on. The monitor display appears. (The VFD68 drive is in EXT Mode.) 3. Press to exit EXT mode and go to PU mode (manual override operation mode). The PU LED illuminates. 4. Press to select PRM mode (parameter setting mode). The PRM LED illuminates. MODE Note: See Table 34 on page 43 for information on the parameters.

  • Page 54: Vfd68Dxx Drives

    Select and Change C-Prefix Parameters 10. Turn until C... appears. 11. Press . C--- appears. 12. Turn slightly until the C-prefix parameter that you want to change appears. See Table 34. 13. Press , then turn slightly to read the present set value. 14.
  • Page 55 7. Press to show 12.5 (default value of P. 32). 8. Press and hold until 9999 appears (9999 indicates that the motor is set to run at minimum speed and not turn off during a low pressure condition). 9. Press and hold for two seconds to set the new value.

  • Page 56: Configuring Manual Motor Speed Control In Pu Mode

    Configuring Manual Motor Speed Control in PU Mode VFD68Bxx and VFD68Cxx Drives Verify that the VFD68 is in PU mode with no jumper between SD and STF (Figure 39 on page 56). Volts: V SO S1 S2 Current: I Figure 39: VFD68 Setup and Low-Voltage Connections 1.

  • Page 57: Vfd68Dxx Drives

    VFD68Dxx Drives Verify that the VFD68 drive is in PU Manual Override Mode (with no jumper between SD and STF). 1. If the PU icon is not on, press until OP.nd appears on the display, then press until PU PU appears MODE on the display.

  • Page 58: Troubleshooting

    Table 37. If the fault does not correspond to any of the faults in Table 37 on page 59 (or if you have any other problem), contact PENN by Johnson Controls Application Engineering at 1-414-524-5535 or 1-800-275-5676.
  • Page 59 Table 37: Indicator Messages (Part 1 of 2) Operation Panel Indication Name Error message E--- Faults history HOLD Operation panel lock Er1 to 4 Parameter write error LOCD Password locked Err. VFD reset Warning Stall protection (overcurrent) Stall protection (overvoltage) Regenerative brake pre-alarm (not used) Electronic thermal relay function pre-alarm PU stop...
  • Page 60 Table 37: Indicator Messages (Part 2 of 2) Operation Panel Indication Name Fault E.OC1 Overcurrent trip during acceleration E.OC2 Overcurrent trip during constant speed E.OC3 Overcurrent trip during deceleration or stop E.OV1 Regenerative overvoltage during acceleration E.OV2 Regenerative overvoltage trip during constant speed E.OV3 Regenerative overvoltage trip during deceleration or stop E.THT...

  • Page 61: Causes And Corrective Actions For Each Error Message

    Causes and Corrective Actions For Each Error Message When a message regarding operational troubles is displayed, output is not shut off. Table 38: Operation Panel Lock Operation HOLD Panel Indication Description Operation lock mode is set. Operation other than is invalid. Check Point -------------- Corrective...

  • Page 62: Warning

    Table 43: Mode Designation Error Operation Panel Indication Description • Appears if a parameter setting is attempted in the External or NET operation mode with P. 77 set to other than 2. • Appears if a parameter setting is attempted when the command source is not at the operation panel.
  • Page 63 Table 46: Stall Prevention (Overvoltage) Operation Panel Indication Description During deceleration, if the regenerative energy of the motor becomes excessive to exceed the regenerative energy consumption capability, this function stops the decrease in frequency to prevent overvoltage trip. As soon as the regenerative energy has reduced, deceleration resumes. Check Point Check for sudden speed reduction.

  • Page 64: Alarm

    1-414-524-5535 or 1-800-275-5676. Fault When a fault occurs, the VFD trips and a fault signal is output. Note: If faults other than these appear, contact PENN by Johnson Controls Application Engineering at 1-414-524-5535 or 1-800-275-5676. Table 52: Overcurrent Trip During Acceleration Operation E.OC1...
  • Page 65 Table 53: Overcurrent Trip During Constant Speed Operation E.OC2 Panel Indication Description When the VFD output current reaches or exceeds approximately 200% of the rated current during constant speed operation, the protective circuit is activated and the VFD trips. Check Point •...
  • Page 66 Table 57: Regenerative Overvoltage Trip During Deceleration or Stop Operation E.OV3 Panel Indication Description If regenerative energy causes the VFD's internal main circuit DC voltage to reach or exceed the specified value, the protective circuit is activated to stop the VFD output. The circuit may also be activated by a surge voltage produced in the power supply system.
  • Page 67 Table 60: Heatsink Overheat Operation E.FIN Panel Indication Description If the heatsink overheats, the temperature sensor is actuated and the VFD trips. The FIN signal can be output when the temperature becomes approximately 85% of the heatsink overheat protection operation temperature. Check Point •...
  • Page 68 Check for devices producing excess electrical noises around the VFD. Corrective Take measures against noises if there are devices producing excess electrical noises around the Action VFD. Contact PENN by Johnson Controls Application Engineering at 1-414-524-5535 or 1-800-275-5676. Table 66: Inrush Current Limit Circuit Fault Operation E.IOH...

  • Page 69: Resetting The Vfd68 Drive

    Resetting the VFD68 Drive WARNING: Risk of Personal Injury. Before you reset the VFD68 drive, verify that all persons are clear of the controlled equipment. Resetting the VFD68 drive may immediately start the controlled equipment, and failure to verify that all persons are clear of the controlled equipment before resetting the VFD68 drive may result in severe personal injury or death.

  • Page 70: Restarting The Motor After It Has Stopped

    Restarting the Motor After It Has Stopped VFD68Bxx and VFD68Cxx Drives To restart the motor after a controlled stop, disconnect the supply power from the drive for at least 30 seconds and then reconnect the supply power to the drive. If it is not easy to disconnect the supply power from the drive, follow these steps: 1.

  • Page 71: Advanced Troubleshooting

    Advanced Troubleshooting Use the following tables to resolve problems with the VFD68 drive. Table 69: Symptoms and Resolutions Symptom Resolution Table Motor Does Not Start Table 70 on page 72 Motor or Machine Makes Generates Acoustic Noise Table 71 on page 73 VFD Generates Abnormal Acoustic Noise Table 72 on page 73 Motor Generates Heat Abnormally...
  • Page 72 Table 70: Motor Does Not Start Check Possible Cause Action Points Main Appropriate power supply voltage is not applied. Power ON moulded case circuit breaker (MCCB), an Circuit earth leakage circuit breaker (ELB), or a magnetic (Operation panel display is not provided.) contactor (MC).
  • Page 73 Table 71: Motor or Machine Generates Abnormal Acoustic Noise Check Possible Cause Action Points Param. Resonance occurs (mechanical system • For Frequency Jump 2, set P. 33 and P. 34. Setting resonance frequency) • For Frequency Jump 3, set P. 35 and P. 36 When it is desired to avoid resonance attributable to the natural frequency of a mechanical system, these parameters allow resonant frequencies to be jumped.
  • Page 74 If the jumper is connected, the operation mode cannot be changed. Table 79: Operation Panel Display Malfunctions Check Possible Cause Action Points Display The operation panel display malfunctions. Contact PENN by Johnson Controls Application Engineering at 1-414-524-5535 or 1-800-275-5676. VFD68 Variable Frequency Drives...
  • Page 75 Table 80: Motor Current is Too Large Check Possible Cause Action Points Load The fan motor stalls and error code OL appears Ensure that combination of motors connected in parallel on the display. does not exceed the VFD68 drive’s output current rating.

  • Page 76: Technical Specifications

    North America: cULus Listed, UL 508C, CSA-C22.2 No. 14, File E244421; Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits Europe: CE Mark - Johnson Controls, Inc. declares that this product is in compliance with the essential requirements and other relevant provisions of the Low Voltage Directive and the EMC Directive when an EMC-compliant line filter is attached to the power supply.
  • Page 77 VFD68Dxx Variable Frequency Drive (575 VAC) (Part 2 of 2) PWM Carrier Frequency Adjustable 0.7 to 15 kHz Motor Requirements Three-phase NEMA Design B motors required; Inverter-rated motors recommended Overload Capacity 150% of ampere rating for 1 minute Start/Stop Use STF input to start or stop the motor Ambient Conditions Storage: -40 to 65ºC (-40 to 149ºF), 0 to 95% RH Non-condensing Operating: -40 to 50ºC (-40 to 122ºF), 0 to 95% RH Non-condensing...

  • Page 78: Appendix 1: Check Fault History

    Appendix 1: Check Fault History The last eight Fault, Error, or Warning indicator messages are stored in the VFD. To view these messages, use the following procedure and see Figure 40 on page 79: 1. Power the VFD and set it to the MON mode (MON LED is on). 2.
  • Page 79   Figure 40: Check Fault History VFD68 Variable Frequency Drives...

  • Page 80: Appendix 2: Additional Vfd68 Drive Application Examples

    Appendix 2: Additional VFD68 Drive Application Examples VFD68Bxx and VFD68Cxx Drives   Figure 41: Connecting Two Ratiometric Transducers Figure 42: Motor Speed versus Pressure Ramp for 0–750 PSI Transducer = 262 PSI; P = 420 PSI; C 3, C 4, C 6, and C 7 use default settings. VFD68 Variable Frequency Drives...
  • Page 81 Figure 43: Motor Speed versus Pressure Ramp for 0–50 PSI Transducer Used in a Reverse Acting Mode (RA Mode) VFD68 Variable Frequency Drives...
  • Page 82   Figure 44: Connecting Two 0–10V Output Transducers Figure 45: Motor Speed versus Pressure Ramp for 0–500 PSI Transducer = 170 PSI; P = 260 PSI; Calculate new values for C 3 and C 4. When connecting a second P499V transducer, then also change Parameter C 6 to 3.4V and change C 7 to 5.2V. VFD68 Variable Frequency Drives...
  • Page 83   Figure 46: Connecting One 4–20 mA Output Transducer Figure 47: Motor Speed versus Pressure Ramp for 0–500 PSI 4–20 mA Transducer = 135 PSI; P = 219 PSI; Calculate new values for C 6 and C 7. VFD68 Variable Frequency Drives...
  • Page 84 The C450CQN can use temperature, pressure, or humidity to control the VFD68 output to a motor. Set the AI2 mode switch to V. Figure 48: Connecting a C450CQN Control with a 0–10 V Output to a VFD68Bxx or VFD68Cxx Drive VFD68 Variable Frequency Drives...

  • Page 85: Vfd68Dxx Drives

    VFD68Dxx Drives Figure 49: Wiring 0.5–4.5 VDC Ratiometric Input Signal Transducers Figure 50: Motor Speed vs Pressure Ramp for Two 0.5–4.5 VDC 750 PSI Ratiometric Transducers VFD68 Variable Frequency Drives...
  • Page 86 Figure 51: Wiring 0–10 V Input Signal Transducer Figure 52: Motor Speed vs Pressure Ramp for 0–10 VDC 500 PSI Transducer VFD68 Variable Frequency Drives...
  • Page 87 Figure 53: Wiring 4–20 mA Input Signal Transducer Figure 54: Motor Speed vs Pressure Ramp for 4–20 mA 500 PSI Transducer VFD68 Variable Frequency Drives...

  • Page 88: Appendix 3: Password Functions

    Appendix 3: Password Functions (P.296, P.297) Registering a four-digit password can restrict parameter reading and writing. You can set these parameters when P.160 = 0. Note: When P.296 is set to something other than 9999, then P.297 is always available to enter a password, regardless of the setting for P.160.

  • Page 89: Password Lock And Unlock

    Password Lock and Unlock Lock 1. Set the parameter restriction level as shown in Table 84. Table 84: Set Password Restriction Level (P.296) P.296 Setting Restriction of Password Unlock P.297 Display Error 1 to 6 No restriction Always 0 101 to 106 Displays error count (0 to 5) Restricted at fifth error If the password unlock error has occurred five times, see Perform a Parameter All Clear to unlock the restriction.

  • Page 90: Fications

    Appendix 4: VFD68Bxx and VFD68Cxx ModBus RTU RS485 Communications Bus Specifications You must create a custom RS485 communication cable to connect the VFD68Bxx or VFD68Cxx to the head end of a ModBus RTU network. Figure 55: VFD68Bxx and VFD68Cxx Identification of RJ45 Receptacle IMPORTANT: Do not connect pin 2 or pin 8 to a communication cable.
  • Page 91 Using the Modbus RTU communication protocol, you can set the communication operation or parameter using the operation panel on the VFD68 drive. These parameters can be set when P.160 = 0. Table 86: Parameters for ModBus RTU RS485 Communications Parameter Name Default Range...

  • Page 92: Communication Specification

    Communication Specification Table 87: Communication Specification Item Description Related Parameter Communication Protocol Modbus RTU protocol P.549 Conforming Standard EIA-485 (RS-485) — Number of Connectable Devices 1:N (maximum 32 units), setting is 0 to 247 stations P.117 Communication Speed Select 4800, 9600, 19200, or 38400 bps P.118 Control Procedure Asynchronous...

  • Page 93: Message Format

    Message Format Query Communication VFD Response Time (Data Check Time) Master Query Message (programmable controller) Slave Response Message Data Absence Time (VFD) (3.5 bytes or more) Broadcast Communication Master Query Message (programmable controller) Slave No Response (VFD) Figure 56: Message Format Table 88: Data Check Time Item Check Time...

  • Page 94: Message Frame (Protocol)

    Message Frame (Protocol) Communication Method The master sends a query message (question), and the slave returns a response message (response). When communication is normal, Device Address and Function Code are copied. When communication is abnormal (function code or data code is illegal), bit 7 (=80H) of Function Code is turned on, and the error code is set to Data Bytes.
  • Page 95 Table 90: Description of Message Fields (Part 2 of 2) Message Description Field Function The function code is 1 byte (8 bits) and any address from 0 to 247 can be set. The master sets the function that it wants to request to the slave, and the slave performs the requested operation. See the sub-table for the supported function codes.

  • Page 96: Message Format Types

    Message Format Types Read Holding Register Data (H03 or 03) Can read the description of the following items: 1. system environment variables 2. real-time monitor 3. fault history 4. VFD parameters assigned to the holding register area Table 91: Query Message Slave Function Starting Address...
  • Page 97 Example The following tables contain a query message directed to the VFD68 slave address 17 (H11). This message requests a read of register addresses (parameter values) 41004 (P.4) to 41006 (P.6). These tables also show the VFD68 slave response message containing the 2 byte Parameter Values P. 4, P. 5, and P. 6 (Table 95 and Table 96).

  • Page 98: Write Holding Register Data (H06 Or 06)

    Write Holding Register Data (H06 or 06) The following tables contain a query message directed to the VFD68 slave instructing a write to a register address (parameter value) using the 2 byte preset data, followed by the VFD68 response message (Table 97 through Table 100).

  • Page 99: Function Diagnosis (H08 Or 08)

    Function Diagnosis (H08 or 08) A communication check can be made because the query message that was sent is returned unchanged as a response message (function of subfunction code H00). Table 103: Query Message Slave Function Subfunction Date CRC Check Address (8 bit) H08 (8 bit)

  • Page 100: Write Multiple Holding Register Data (H10 Or 16)

    Write Multiple Holding Register Data (H10 or 16) You can write data to multiple holding registers. Table 107: Query Message Slave Function Starting Number of Byte Data CRC Check Address Address registers Count (8 bit) H10 (8 bit) (8 bit) (8 bit) (8 bit) (8 bit)

  • Page 101: Read Holding Register Access Log (H46 Or 70)

    Read Holding Register Access Log (H46 or 70) A response can be made to a query made by the function code H03 or H10. The starting address of the holding registers that succeed in access during previous communication are returned. Also, the number of successful registers are returned.

  • Page 102: Error Response

    Error Response An error response is returned if the query message received from the master has an illegal function, address, or data. No response is returned for a parity, CRC, overrun, framing, or busy error. Note: No response message is sent in the case of broadcast communication. Table 118: Error Response (Response Message) Slave Address Function...

  • Page 103: Modbus Registers

    Modbus Registers Table 122: System Environment Variable Register Definition Read/Write Remarks 40002 VFD Reset Write Any value can be written. 40003 Parameter Clear Write Set H965A as a written value. 40004 All Parameters Clear Write Set H965A as a written value. 40006 Write Set H965A as a written value.
  • Page 104 Table 124: Real-Time Monitor Register Description Unit 40201 Output Frequency/Speed 0.01 Hz 40202 Output Current 0.01 A 40203 Output Voltage 0.1 V 40205 Output Frequency/Speed Setting 0.01 Hz/1 40208 Converter Output Voltage 0.1 V 40209 Regenerative Brake Duty 0.1% 40210 Electronic Thermal Relay Function Load Factor 0.1% 40211...
  • Page 105 Table 126: Parameter (Part 2 of 2) Parameter Register Parameter Name Read/Write Remarks C 3 (P.902) 42092 Terminal 2 Frequency Setting Bias Read/Write The analog value (%) set to C 3 (Analog Value) (P.902) is read. 43092 Terminal 2 Frequency Setting Bias Read The analog value (%) of the (Terminal Analog Value)

  • Page 106: P.343 Communication Error Count

    Table 128: Faults Code List Data Definition Data Definition Data Definition E.OV3 E.OHT E.SAF E.THT E.PTC P.343 Communication Error Count You can check the cumulative number of communication errors. Table 129: P.343 Communication Error Count Parameter Setting Range Minimum Setting Initial Value Range P.343...

  • Page 107: Appendix 5: Emc Line Filter Selection Chart

    Appendix 5: EMC Line Filter Selection Chart Table 130: VFD68Bxx Models, 200–240 V VFD68 Model Rasmi EMC Filter kW (H.P.) Typical Continuous Dimensions, Number Full Load Output H x W x D, mm (in.) Input Current, Current, Amperes Amperes VFD68BDC-2C FE7200.7 0.4 (1/2) 128 x 68 x 113...
  • Page 108 Building Technologies & Solutions 507 E. Michigan Street, Milwaukee, WI 53202 Johnson Controls® and PENN® are registered trademarks of Johnson Controls, Inc. in the United States of America and/or other countries. All other trademarks used herein are the property of their respective owners. © Copyright 2017 by Johnson Controls. All rights reserved.

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