Danfoss VLT MICRO Manual
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Danfoss VLT MICRO Manual

Adjustable frequency drive
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Getting Started ................................................................................. 3
Receiving, Inspection, and Storage .................................................. 4
Nameplate Information ..................................................................... 4
General Technical Data .................................................................... 5
Specifications ................................................................................... 8
External Parts and Labels ................................................................ 9
Installation Requirements ............................................................... 10
Wiring ............................................................................................. 11
Installation without RFI-filter ............................................................ 12
EMC-correct installation with RFI-filter ............................................. 13
Use of EMC compliant cables ......................................................... 14
Earthing of screened/armoured control cables ................................ 15
Control Terminal Designations (Factory Settings) ............................. 16
Safety Precautions ......................................................................... 17
Digital Keypad/Display Features ...................................................... 19
Quick Set-up .................................................................................. 21
Operation ....................................................................................... 23
Description of Parameters .............................................................. 25
Summary of Parameters ................................................................. 69
Troubleshooting and Fault Information ............................................. 76
Appendix A Dimensions ..................................................................................... 80
Appendix B Accessories .................................................................................... 84
Appendix C CE Labeling .................................................................................... 86
Appendix D Serial Communication ..................................................................... 88
Danfoss can accept no responsibility for possible errors in catalogs, brochures and other printed material. Danfoss reserves the right
to alter its products without notice. This also applies to products already on order provided that such alterations can be made without
subsequential changes being necessary in specifications already agreed.
Document Version Number 6.0
Software Version M+

Table of Contents

VLT is a registered Danfoss trade mark
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® ® ® ® ®
VLT
MICRO

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juan
January 20, 2025

hola, tengo un inversor de hercios 176F7330 de la marca danfoss y se le daño una resistencia, esta exploto y no puedo ver su valor lo que me impide cambiarla, lo que quiero preguntar es si es posible que me ayuden dando algun diagrama o información en el cual indique cual es el valor de la resistencia en homs y cuantos de cuantos wats debe ser

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Summary of Contents for Danfoss VLT MICRO

  • Page 1: Table Of Contents

    VLT is a registered Danfoss trade mark Danfoss can accept no responsibility for possible errors in catalogs, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without...
  • Page 2 ® ® ® ® ® MICRO...

  • Page 3: Chapter 1 Introduction

    ® ® ® ® ® MICRO Chapter 1 Introduction ® ® Congratulations on your purchase of a VLT Adjustable Frequency Drive. The VLT MICRO is a high-performance / low noise general-purpose drive, manufactured using the highest quality components and incorporating the latest micro-processor technology and control algorithms. The purpose of this chapter is to provide specific yet simple information to unpack, install, and operate the drive.

  • Page 4: Receiving, Inspection, And Storage

    ® ® ® ® ® MICRO Receiving, Transporting, Inspecting, and Storage This VLT ® MICRO Adjustable Frequency Drive has gone through rigorous quality control tests at the factory before shipment. After receiving and before transporting the drive, check for the following. Receipt After receiving the AC drive, inspect the unit to insure it was not damaged during shipment.

  • Page 5: General Technical Data

    ® ® ® ® ® MICRO General Technical Data AC line supply (L1, L2, L3): Supply voltage 200-240 V units ......1 x 200/208/220/230/240 V ±10% Supply voltage 200-240 V units ......3 x 200/208/220/230/240 V ±10% Supply voltage 380-480 V units ....3 x 380/400/415/440/460/480 V ±10% Supply frequency ..................
  • Page 6 ® ® ® ® ® MICRO Control card, analog inputs: No. of programmable analog inputs ................2 Terminal numbers ..............AVI(0-10V), ACI(4-20mA) AVI Voltage level ..................0 - 10 VDC AVI Input resistance, R approx. 47 kΩ ..........................ACI Current range ..................4-20 mA approx.
  • Page 7 ® ® ® ® ® MICRO Relay outputs: No. of programmable relay outputs ................1 Terminal numbers ..........RA, RC (N.O.) RB, RC (N.C.) (Form C) Max. terminal load rating ............120 VAC/28 VDC, 5 A ......................240 VAC, 2.5 A Brake resistor terminals: Terminal numbers .....................

  • Page 8: Specifications

    ® ® ® ® ® MICRO Specifications AC Line 1Ø and 3Ø, 200 - 240 Volt T Or T Or der Number 1Ø/3Ø der Number 1Ø/3Ø 176F7300 176F7300 176F7301 176F7301 176F7302 176F7302 176F7330 176F7330 VLT Or T Or T Order Number 1Ø/3Ø der Number 1Ø/3Ø...

  • Page 9: External Parts And Labels

    ® ® ® ® ® MICRO...

  • Page 10: Chapter 2 Installation And Wiring

    ® ® ® ® ® MICRO Chapter 2 Installation and Wiring Chapter 2 provides the information needed to properly install and wire the AC motor drive. Make sure that the AC drive is wired according to the instructions contained in this chapter.

  • Page 11: Wiring

    ® ® ® ® ® MICRO Wiring There are two wiring systems in an AFD: Main Circuit and Control Circuit. The Main Circuit terminals are located at the top of the drive. Control Circuit terminals are located bottom of drive, Both terminal blocks are covered by the plastic housing. Lift the hinged portion of the housing to gain access to the terminals.

  • Page 12: Installation Without Rfi-Filter

    BUSSMAN Type JJN Fuse VLT MICRO model176F7300 JJN-10 VLT MICRO model176F7301 JJN-20 VLT MICRO model176F7302 JJN-25 VLT MICRO model 176F7306 JJN-10 VLT MICRO model 176F7307 JJN-20 VLT MICRO model 176F7308 JJN-25 380-480 VAC units 380-480 VAC units 380-480 VAC units...

  • Page 13: Emc-Correct Installation With Rfi-Filter

    ® ® ® ® ® MICRO EMC correct installation with RFI-filter General points to be observed to ensure EMC- correct electrical installation. Use only screened/armoured motor cables and screened/armoured control cables. Connect the screen to earth at both ends. Avoid installation with twisted screen ends (pig-tails), since this ruins the screening effect at high frequencies.

  • Page 14: Use Of Emc Compliant Cables

    ® ® ® ® ® MICRO Use of EMC compliant cables is rarely stated by cable manufacturers, but In order to comply with requirements for it is often possible to estimate Z by looking at EMC immunity of the control cables and EMC and assessing the physical design of the cable.

  • Page 15: Earthing Of Screened/Armoured Control Cables

    ® ® ® ® ® MICRO Earthing of screened/armoured control cables In general control cables must be screened/ar- moured, and the screen must be connected to the unit’s metal cabinet with a cable clamp at each end. The drawing below shows the correct way to perform the earthing, and what to do when in doubt.

  • Page 16: Control Terminal Designations (Factory Settings)

    ® ® ® ® ® MICRO Control Terminal Designations AWG 12-14 Torque 4 kg-cm Relay contactor output Factory setting: Terminal symbol Terminal name Remarks RA - RC Multi-function output contact Refer to P46, RB - RC Multi-function output contact Relay Output Contact M0 - GND Multi-function input 1 Refer to P38, 39, 40, 41, 42...

  • Page 17: Safety Precautions

    ® ® ® ® ® MICRO Installation Notes: • Make sure that the appropriate input fusing with specified current ratings are connected between the AC Power Line and the AC drive. A MCC (contactor with magnetic trip) is recommended between the drive and circuit breaker to provide a means to disconnect the drive from the power line in the event of a fault.
  • Page 18 ® ® ® ® ® MICRO • Avoid loose wiring and possible shorts. Tighten all screws on AC circuit terminals securely. • It is a good practice to maintain a 90° angle between wires connected to the AC circuit terminals and wires connected to the control terminals. •...

  • Page 19: Chapter 3 Digital Keypad/Display Operation

    ® ® ® ® ® MICRO Chapter 3 Digital Keypad/Display Operation Chapter 3 describes the various controls and indicators found on the Digital Keypad/ Display. The information in this chapter should be read and understood before performing the start-up procedures described in Chapter 4. •...
  • Page 20 ® ® ® ® ® MICRO Function / Program MODE Pressing the “mode” key repetitively displays the AFD status such as the reference frequency, output frequency, direction or output current and selects the parameter setting mode. Enter Pressing the “ENTER” key to enter the data change mode and again to ENTER store the value in memory.

  • Page 21: Quick Set-Up

    Quick Set-up Refer to the relevant chapters of this manual for detailed instructions to configure the VLT MICRO for your specific requirements. Before you start, please read the safety instructions in Chapter 1 of this manual. The adjustable frequency drive contains dangerous voltages when connected to the AC line.
  • Page 22 ® ® ® ® ® MICRO Explanation of Displayed Messages Displays the AC drives output frequency. The frequency may be determined by any one of the frequency sources that is selected by the [Master frequency setting] or [Jog Frequency] command. It may also be set using the [Multi-step speed setting 1 - 7] as determined by the inputs to Multi-function Input terminals 1, 2 and 3.
  • Page 23 ® ® ® ® ® MICRO • Operating The Digital Control Panel • Indicate the operation mode. Indication after Parameter value Output frequency Output current Fwd./Rev. power on. setting motor. monitor. monitor. monitor. STOP STOP STOP STOP STOP MODE MODE MODE MODE MODE...

  • Page 24: Operation

    ® ® ® ® ® MICRO • Change the different indication mode as follows: Forward Indication after Operate at Output frequency Output current operation power on. 60.0Hz. monitor. monitor. monitor. After STOP STOP STOP STOP STOP 10 sec. MODE MODE MODE MODE MODE...

  • Page 25: Chapter 4 Description Of Parameters

    ® ® ® ® ® MICRO Chapter 4 Description of Parameters Pr.00 Master Frequency Source Select Factory Setting 00 Units None Settings 00 Master frequency determined by keypad digital control. 01 Master frequency determined by analog signal of 0 to +10V input on AVI terminal.
  • Page 26 ® ® ® ® ® MICRO Pr.01 Operation Command Source Select Factory Setting 00 Units None Settings 00 Operating instructions determined by the Digital Keypad/Display. 01 Operating instructions determined by the External ControlTerminals. Keypad STOP key is effective. 02 Operating instructions determined by the External Control Terminals. Keypad STOP key is not effective.
  • Page 27 ® ® ® ® ® MICRO Pr.03, Pr.04, Pr.05, Pr.06, Pr.07, Pr.08, Pr.09 – V / F Curve Pr.03 Maximum Output Frequency Factory Setting 60.0 Hz Units 0.1 Hz Parameter value 50.0 - 400.0 Hz This parameter determines the maximum AC drive output frequency. Analog inputs (0 - 10 V, 4 - 20 mA) are scaled to correspond to the output frequency range.
  • Page 28 ® ® ® ® ® MICRO This parameter must be equal to or greater than Minimum Output Voltage (Pr.09) and equal to or less than Maximum Output voltage (Pr.05) Pr.08 Minimum Output Frequency Factory Setting 1.50 Hz Units 0.1 Hz Parameter value 0.1 - 20.0 Hz This parameter programs the Minimum Output Frequency of the AC drive.
  • Page 29 ® ® ® ® ® MICRO Commonly Used V/F Pattern Settings (1) General Purpose Factory Settings Motor Spec 60Hz Motor Spec 50Hz Set value Set value Pr.03 60.0 Pr.03 50.0 Pr.04 60.0 Pr.04 50.0 Pr.05 220.0 Pr.05 220.0 Pr.06 Pr.06 Pr.07 10.0 Pr.07...
  • Page 30 ® ® ® ® ® MICRO This parameter is used to determine the time required for the AC drive to ramp from 0 Hz to its Maximum Output Frequency (Pr.03). The rate is linear unless S Curve is "enabled". This rate of acceleration applies to any incremental increase in command frequency unless selected using the Multi-Function Inputs, MI1 - 3.
  • Page 31 ® ® ® ® ® MICRO Note: See Pr.101; Automatic Accel and Decel times are default. Change to "Linear Acceleration/Deceleration" to enable manual adjustment. Pr.13 Deceleration Time 2 (Can be programmed while the drive is running.) Factory Setting 10.0 Sec Units 0.01 Sec Parameter value 0.01 - 600.0 Sec This parameter determines the time for the AC drive to decelerate from the Maximum...
  • Page 32 ® ® ® ® ® MICRO Pr.15 Jog Accel. / Decel. Time (Can be programmed while the drive is running.) Factory Setting 1.0 Sec Units 0.01 Sec Parameter value 0.01 - 600.0 Sec This parameter, together with the Jog Frequency (Pr.16), determines the time required for the AC drive to ramp from 0 Hz to the Jog Frequency, or the time required to ramp from the Jog Frequency to 0 Hz.
  • Page 33 ® ® ® ® ® MICRO Pr.24 Reverse Run Inhibit Factory Setting 00 Units None Settings 00 REV run enabled 01 REV run disabled This parameter inhibits AC drive operation in the reverse direction. Pr.25 Over-voltage Stall Prevention 230V 460V Factory Setting 390Vdc Factory Setting 780Vdc Parameter value 330 - 450Vdc...
  • Page 34 ® ® ® ® ® MICRO During periods of rapid acceleration or excessive load, the AC drive output current may increase abruptly and exceed the value specified by Pr.26. When this function is enabled, the AC drive will cease to accelerate, then maintain a constant output frequency.
  • Page 35 ® ® ® ® ® MICRO Pr.29 DC Braking Time During Start-up Factory Setting 0.0 Sec Units 0.1 Sec Parameter value 0.0 - 5.0 Sec This parameter determines the time duration that DC braking current will be applied to the motor during the AC drive start-up. Pr.30 DC Braking Time During Stopping Factory Setting 0.0 Sec Units 0.1 Sec...
  • Page 36 ® ® ® ® ® MICRO 02 Operation continues after momentary power loss. Speed search starts with the Minimum Frequency. NOTE: Fault contact is not energized during restart after a momentary power loss. This parameter determines the AC drive mode of operation after recovery from a momentary power loss.
  • Page 37 ® ® ® ® ® MICRO Pr.36, Pr.37 – Reference Frequency: Upper / Lower limit Pr.36 Reference Frequency Upper Limit Factory Setting 400.0 Hz Units 0.01 Hz Parameter Value 0.01 - 400.0 Hz This parameter programs the upper limit of the reference frequency in 0.01 Hz increments. Pr.37 Reference Frequency Lower Limit Factory Setting 0.00 Hz Units 0.01 Hz...
  • Page 38 ® ® ® ® ® MICRO Pr.40 Multi-Function Input Terminals (M3) Factory Setting 06 Units None Settings 03 - 20 Pr.41 Multi-Function Input Terminals (M4) Factory Setting 07 Units None Settings 03 - 20 Pr.42 Multi-Function Input Terminals (M5) Factory Setting 08 Units None Settings 03 - 20 Parameter - Function List:...
  • Page 39 FWD/STOP M0 "Open': Stop; "Close": FWD Run REV/STOP M1 "Open": Stop; "Close": REV Run VLT MICRO Mode 2 - Two wire control: Parameter value set to 01 (Pr.38 only). M0 "Open': Run; "Close": Stop RUN/STOP M1 "Open": FWD; "Close": REV...
  • Page 40 Mx "Close": Operation available. Setting by 05 VLT MICRO External Reset has the same function as the Reset key on the Digital keypad. External faults O.H., O.C. and O.V. are cleared when this input is used to reset the drive.
  • Page 41 Terminal: M1 (Pr.38), M2 (Pr.39), M3 (Pr.40), M4 (Pr.41) or M5 (Pr.42) for Jog control. Mx "Closed": Operation available. 09 jog operation Command VLT MICRO Jog operation programmed by 09 can only be initiated with the motor stopped (refer to Pr.15, Pr.16). 6. 10: Accel./Decel. Speed Inhibit – Parameter 10 programs a Multi-functional Input Terminal: M1 (Pr.38), M2 (Pr.39), M3 (Pr.40), M4 (Pr.41), M5 (Pr.42) for "hold speed"...
  • Page 42 B.B. (N.C.) Mx "Open": Operation available. Setting by 13 VLT MICRO Application Note: When the programmed inputs for 12 or 13 are used to activate base block control, the motor will free run. When base block control is deactivated, the AC drive will start its speed search function and synchronize with the motor speed then accelerated to programmed frequency.
  • Page 43 DOWN (N.C.) Mx "Closed": Operation available Setting by 15 Freq. will increase one unit. VLT MICRO Application Note: If the Multi-function Input Terminals programmed for Increase/Decrease Output Frequency Control (14, 15) are asserted continuously, the output frequency will increase or decrease unit by unit continuously. If the input is pulsed, the output frequency will change one unit.
  • Page 44 "On" to "Off". 18 Counter trigger signal input. VLT MICRO Application Note: The Counter Trigger input can be connected to an external sensor to count a process step or unit of material used in a process. Refer to the diagram below.
  • Page 45 Mx Both "Open" or "Closed" without any operation. 20 No function VLT MICRO Application Note: The purpose of this function is to provide isolation for unused Multi-function Input Terminals. Any unused terminals should be programmed to 20 to insure they have no effect on drive operation.
  • Page 46 ® ® ® ® ® MICRO Pr.45 Multi-function PHC Output Terminal (MO1) Factory Setting 00 Units None Settings 00 - 14 Pr.46 Multi-function Output Relay Contact RA-RC (NO), RB-RC (NC) Factory Setting 07 Units None Settings 00 - 14 Multi-function Output Program Values Value Function Value Function AC drive operational...
  • Page 47 ® ® ® ® ® MICRO 7. 06: AC Drive Contr ol Mode – The Multi-function Output Terminal contacts will be "closed" when the AC drive operation is controlled by the external terminals. 8. 07: Fault Indicator – The Multi-function Output Terminal contacts will be "closed"...
  • Page 48 ® ® ® ® ® MICRO Multi-function output terminal operation (d01 and d08) Setting Freq. Detective Range Detective Range ± 4Hz ± 2Hz Desired Freq. Inefficient Range Setting – 2Hz Pre-set Freq. attained indication P45/46 Desired Freq. Attained Setting P45/46 Pr.48 Output Frequency Offset (can be programmed while the dirve is running) Factory Setting 0.00 Units 0.01%...
  • Page 49 ® ® ® ® ® MICRO In the following examples the output frequency and direction of motion is controlled by a potentiometer connected to the external terminals or the potentiometer in the Digital Keypad/Display. Observe the interaction and effect of parameters: Pr.48, 49, 50, 51 on the potentiometer operation.
  • Page 50 ® ® ® ® ® MICRO Example 4: In this example a Process Signal range of 0 to 5 V is used to control the output frequency from 0 to 60 Hz. Programming for this function can be done in two ways: 1 set Pr.50 to 200%, 2 set Pr.03 to 120 Hz, Pr.50 to 100%.
  • Page 51 ® ® ® ® ® MICRO Example 7: This example is a combination of the previous 6 examples with forward and reverse motion added. Note: forward and reverse motion control is not available through the external terminals. (Refer to Pr.38-42 and Parameter values d00, d01, d02.) Max.
  • Page 52 ® ® ® ® ® MICRO Pr.53 Motor No-load Current (can be programmed while drive is running) Factory Setting 0.4*FLA Units Display in Amps Parameter value 00% FLA - 99% FLA Determines the Motor No-load Current. The Motor Rated Current (Pr.52) is set to 100%.
  • Page 53 ® ® ® ® ® MICRO Pr.58, Pr.59 – Electronic Thermal Overload Relay Pr.58 De-rating for Output Current vs. Temperature Factory Setting 02 Units None Settings 00 Active with standard motor 01 Active with special motor 02 Inactive To prevent self-cooled motors from over heating when running at low speeds, program this parameter to limit the AC drive output power.
  • Page 54 ® ® ® ® ® MICRO Pr.60, Pr.61, Pr.62 – Over-torque Detection Pr.60 Over-torque Detection Mode Factory Setting 00 Units None Settings 00 Over-torque Detection not enabled 01 Over-torque Detection during constant speed operation. Drive operation halted after over-torque detection. 02 Over-torque Detection during constant speed operation.
  • Page 55 ® ® ® ® ® MICRO Pr.64 User Defined Function for Display Factory Setting 06 Units None Settings 00 Displays AC drive output frequency (Hz) 01 Displays the user-defined output frequency H*P65 02 Displays the Output Voltage (E) 03 Displays the DC Bus Voltage (u_) 04 Displays the PV (i) 05 Displays the value of the internal counter (c) 06 Displays the setting Frequency (F or o=%)
  • Page 56 ® ® ® ® ® MICRO Pr.70 Frequency Bandwidth Setting Prevention Factory Setting 0.0 Units 0.1 Hz Parameter value 0.0 - 20.0 Hz This parameter determines the frequency band for a given Skip Frequency. Half of the Skip Frequency Band is above the Skip Frequency and the other half is below. Programming this parameter to 0.1 disables all skip frequencies.
  • Page 57 ® ® ® ® ® MICRO Pr.72 Auto-Reset / Restart Operation Following a Fault Factory Setting 00 Units none Parameter value 00 - 10 Auto-Reset/Restart Operation may be performed up to 10 times after a fault has occurred. Setting the parameter to d00 disables the Reset/Restart operation after a fault has occurred.
  • Page 58 ® ® ® ® ® MICRO Pr.76 Parameter Lock and Configuration Factory Setting 00 Units None Settings 00 All parameters can always be set and read 01 All parameters are read-only 02 - 07 Not used 08 Keyboard lockout 10 Resets all parameters to the factory defaults This parameter controls the programming and read status for all parameters.
  • Page 59 ® ® ® ® ® MICRO Example 1 (Pr.78 = d01): Execute one cycle through the PLC program Freq. P17=10Hz P42=16 P81=1.0 60Hz P18=20Hz P45=09 P82=1.2 P19=40Hz P46=10 P83=1.5 P20=60Hz P78=01 P84=1.5 50Hz P21=50Hz P79=00 P85=1.7 P22=30Hz P86=1.7 40Hz P23=15Hz P87=1.7 Note: Operation time is 10-times 30Hz...
  • Page 60 ® ® ® ® ® MICRO Example 3 (Pr.78 = d03): Execute one cycle step by step Freq. P17=10Hz P42=16 P81=1.0 60Hz P18=20Hz P45=09 P82=1.2 P19=40Hz P46=10 P83=1.5 P20=60Hz P78=03 P84=1.5 50Hz P21=50Hz P79=00 P85=0.8 P22=30Hz P86=1.7 40Hz P23=15Hz P87=1.7 Note: Operation time is 10-times 30Hz by setting value.
  • Page 61 ® ® ® ® ® MICRO Example 5 (Pr.78 = d01): Execute one cycle through the PLC program Freq. P17=10Hz P42=16 P81=1.0 60Hz P18=20Hz P45=09 P82=1.2 P19=40Hz P46=10 P83=1.5 P20=60Hz P78=01 P84=1.5 50Hz P21=50Hz P79=34 P85=0.8 P22=30Hz P86=1.7 40Hz P23=15Hz P87=1.7 Note: Operation time is 10-times by setting value.
  • Page 62 ® ® ® ® ® MICRO Explanation: The equivalent 7-bit binary number is used to program forward/reverse motion for each of the 7 speed steps. 0 = Fwd. 2 2 2 2 2 2 2 1 = Rev. 7 6 5 4 3 2 1 Forward motion of Pr.17 multi-speed 1.
  • Page 63 ® ® ® ® ® MICRO Pr.80 Manufacturer Model Information Factory Setting ## Units None Settings 00 220V 3-Phase/1-Phase 0.5Hp 01 400V 3-Phase/1-Phase 0.5Hp 02 220V 3-Phase/1-Phase 1.0Hp 03 400V 3-Phase/1-Phase 1.0Hp 04 220V 3-Phase/1-Phase 2.0Hp 05 220V 3-Phase/1-Phase 2.0Hp 06 200V 3-Phase/1-Phase 3.0Hp 07 200V 3-Phase/1-Phase 3.0Hp This parameter contains information on the drive: model number, firmware version, etc.
  • Page 64 ® ® ® ® ® MICRO Pr.96 Count Down Completion Settings Factory Setting 00 Units None Settings 00 ~ 9999 This parameter defines the terminal count value for the internal counter. The counter can be incremented by a low-to-high transition on a selected Multi-Function Input Terminal: M1 or M2.
  • Page 65 ® ® ® ® ® MICRO Pr.101 Auto Acceleration/Deceleration Adjustment Selection Factory Setting 00 Units None Settings 00 Linear acceleration deceleration 01 Automatic acceleration, linear deceleration 02 Linear acceleration, automatic deceleration 03 Automatic acceleration, deceleration 04 For deceleration and stall due to overvoltage Auto acceleration/deceleration adjustment selection can reduce the mechanical vibration resulted from run and stop.
  • Page 66 ® ® ® ® ® MICRO AVR function automatically regulates the AC drive output voltage to the Maximum Output Voltage (Pr.03). For instance, if Pr.03 is set at 200 VAC and the input voltage is at 200V to 264VAC, then the Maximum Output Voltage will automatically be regarded to 200 VAC. Without AVR function, the Maximum Output Voltage may vary between 180V to 264VAC, due to the input voltage varying between 180V to 264 VAC.
  • Page 67 ® ® ® ® ® MICRO Pr.111 Deceleration S curve Setting Factory Setting 00 Units None Parameter value 00 ~ 07 This parameter can be set to obtain a slow stop without hard braking. The deceleration S curve will differ according to the setting value from 1-7. If there is no specific setting of this parameter, the parameter of acceleration/deceleration S curve is determined by parameter Pr.14.
  • Page 68 ® ® ® ® ® MICRO...

  • Page 69: Chapter 5 Summary Of Parameters

    ® ® ® ® ® MICRO Chapter 5 Summary of Parameters This chapter summarizes all 10 of the parameter groups. For complete descriptions of individual parameters refer to Chapter 4. No. Parameter Function Parameter Factory Name Explanation Value Setting Master Speed Master frequency 00:Master frequency input Frequency source select...
  • Page 70 ® ® ® ® ® MICRO No. Parameter Function Parameter Factory Name Explanation Value Setting Deceleration time 2 0.1 - 600.0 sec 10.0 S-curve S-curve 00 - 07 Jog Operation Jog acel/decel time 0.01 - 600.0 sec Setting Jog frequency 0.00 - 400.0 Hz 6.00 Multi-step...
  • Page 71 ® ® ® ® ® MICRO No. Parameter Function Parameter Factory Name Explanation Value Setting Maximum allowable 0.3 - 5.0 sec power loss time Freq Searching Min base block time 0.3 - 5.0 sec Function Speed search 30 - 200% Setting deactivation current level...
  • Page 72 ® ® ® ® ® MICRO No. Parameter Function Parameter Factory Name Explanation Value Setting Multi-function 01:Pre-set frequency attained RELAY output 02:Non-zero speed 03:Over-torque detection 04:Baseblock indicator 05:Low-voltage detect 06:AC drive control mode 07:Fault indicator 08:Desired frequency attained 09:PLC program running 10:PLC program step complete 11:PLC completed execution 12:PLC execution paused...
  • Page 73 ® ® ® ® ® MICRO No. Parameter Function Parameter Factory Name Explanation Value Setting Activation Time for Electronic 30 - 300 sec Thermal Protection Function Over-torque Over-torque 00:Over-torque detection not Detection detection mode enabled 01:Over-torque detection during constant speed operation. Drive operation halted after over-torque (OL2).
  • Page 74 ® ® ® ® ® MICRO No. Parameter Function Parameter Factory Name Explanation Value Setting Master Freq. 0.00 - 400.0 Hz 0.00 Frequency Skip frequency 1 0.00 - 400.0 Hz 0.00 Setting Skip frequency 2 0.00 - 400.0 Hz 0.00 Prohibited Skip frequency 3 0.00 - 400.0 Hz...
  • Page 75 ® ® ® ® ® MICRO No. Parameter Function Parameter Factory Name Explanation Value Setting PLC (programmable 00:Disable PLC performing Operation logic controller) 01:Execute cycle of PLC program Mode operation mode 02:Continuously execute cycles 03:Execute cycle step-by-step 04:Continuously execute program cycles step-by-step PLC Fwd/Rev PLC fwd/rev...

  • Page 76: Chapter 6 Troubleshooting And Fault Information

    ® ® ® ® ® MICRO Chapter 6 T T T T T r r r r r oubleshooting and Fault Information oubleshooting and Fault Information oubleshooting and Fault Information oubleshooting and Fault Information oubleshooting and Fault Information The AC motor drive has a comprehensive fault diagnosis system that includes more than 20 different alarms and fault messages.
  • Page 77 ® ® ® ® ® MICRO Possible Faults Corrective Actions Check the motor output power to insure it o.c. The over-current hardware corresponds to the AC drive output power. trip circuit detects an abnormal Check wiring connections between the AC increase in current.
  • Page 78 ® ® ® ® ® MICRO Possible Faults Corrective Actions o.L.I Internal electronic overload Check for possible motor overload. trip: Check electronic thermal overload settings (Pr.58, 59). Motor is overloaded. Increase motor capacity. Reduce the current level so that the drive output current does not exceed the value set by the [Motor rated current] Pr.-52.
  • Page 79 ® ® ® ® ® MICRO Possible Faults Corrective Actions c.F.I AC motor drive internal 1. Switch off power supply. circuitry failure. 2. Check the AC line voltage to insure it falls within the rated AC drive input voltage. 3. Switch power to the AC drive back on. Check the connections between the main c.F.2 AC motor drive E2PROM control board and the power board.

  • Page 80: Appendix A Dimensions

    ® ® ® ® ® MICRO Appendix A Dimensions: Local Control Panel (LCP) Dimensions: Mounting Panel A and B...
  • Page 81 ® ® ® ® ® MICRO Appendix A Dimensions 200-240V Series: 176F7300, 176F7301, 176F7302...
  • Page 82 ® ® ® ® ® MICRO Appendix A Dimensions 200-240V CE Series: 176F7306, 176F7307, 176F7308 Dimensions 380-480V CE Series: 176F7312, 176F7313, 176F7314 WARNING: D onot c onnec t A Cp o w e rto output terminals(u ,v,w ). D onot ins pec t c o m p o n e n ts until LE D saretu rn e do ff for at leas t1m in .
  • Page 83 ® ® ® ® ® MICRO Appendix A Dimensions 200-240V CE Series: 176F7330, 176F7331 Dimensions 380-480V CE Series: 176F7332...

  • Page 84: Appendix B Accessories

    ® ® ® ® ® MICRO Appendix B Accessories Remote Keypad Kit: 6 ft. (2 meter) 176F7310 15 ft. (5 meter) 176F7325 DIN Rail Adapter Bracket Kit: 200-240V, single and three phase 176F7311 200-240V single or three phase CE 176F7315 380-460V three phase 176F7315 200-240 V...
  • Page 85 ® ® ® ® ® MICRO DIN Rail Adaptor Bracket Kit : 200-240V versions 176F7311 200-240V CE versions 176F7315 380-460V CE versions 176F7315 Mounting Screw Hex Nut DIN Rail Adaptor Mounting Screw Hex Nut DIN Rail Clip...

  • Page 86: Appendix Cce Labeling

    1 January 1997. The directive applies to all electrical equipment and appliances used in the 50 - 1000 Volt AC and the 75 - 1500 Volt DC voltage ranges. Danfoss CE labels in accordance with the directive and issues a declaration of conformity upon request.
  • Page 87 Observed EMC standards Observed emission standards With the use of the specified external RFI – Filter, VLT MICRO complies with the following Emission Standards up to 25m of screened/armoured motor cable, when used according to the instructions regarding EMC installation and filtering.

  • Page 88: Appendix D Serial Communication

    ® ® ® ® ® MICRO Appendix D Serial Communication Pr.88 Communication Address Factory Setting 01 Settings 01 to 254 This parameter can be set during operation. If the AC drive is controlled by RS-485 serial communication, the communication address must be set via this parameter.
  • Page 89 Pr.88. The computer then controls each AC drive according to its communication address. • The VLT MICRO can be setup to communicate on Modbus networks using one of the following modes: ASCII (American Standard Code for Information Interchange) RTU .
  • Page 90 ® ® ® ® ® MICRO • (7, E, 1: Pr.92 = 1) Start Even Stop parity 7-bit character 10-bit character frame • (7, O, 1: Pr.92 = 2) Start Stop parity 7-bit character 10-bit character frame 2.2 11-bit character frame (For 8-bit character): •...
  • Page 91 ® ® ® ® ® MICRO • (8, O, 1: Pr.92 = 5) Start Stop parity 8-bit character 11-bit character frame 3 Communication Protocol 3.1 Communication Data Frame: ..Address Data Characters Check Sum 3.2 ASCII mode: Start character: (3AH) ADR 1 ADR 0 Communication address:...
  • Page 92 ® ® ® ® ® MICRO 3.3 ADR (Communication Address) Valid communication addresses are in the range of 0 to 254. Communication address equals to 0 means broadcast to all AC drives (AMD), in this case, the AMD will not reply any message to the master device.
  • Page 93 ® ® ® ® ® MICRO ASCII mode: ASCII mode: ASCII mode: ASCII mode: ASCII mode: Command message: Response message: ‘:’ ‘:’ ADR 1 ‘0’ ADR 1 ‘0’ ADR 0 ‘1’ ADR 0 ‘1’ CMD 1 ‘0 CMD 1 ‘0’ CMD 0 ‘3’...
  • Page 94 ® ® ® ® ® MICRO 3.5 Data characters Giving the data format according to the request of communication interface. For example, reading address 01 as Pr.04 of AC drive. "0 & 4" are the data format..30H , 34H "0"...
  • Page 95 ® ® ® ® ® MICRO 3.6 Chk (check sum) Check Sum is calculated by summing up ADR to ET. For Example, reading address 01 as Pr.04 of AC drive..30H , 34H "0" "1" "0" "8" "3" "0" "0"...
  • Page 96 ® ® ® ® ® MICRO RTU mode: RTU mode: RTU mode: RTU mode: RTU mode: Starting address Number of data (count by word) CRC CHK Low CRC CHK High CRC (Cyclical Redundancy Check) is calculated by the following steps: Step 1: Load a 16-bit register (called CRC register) with FFFFH.
  • Page 97 ® ® ® ® ® MICRO The function returns the CRC value as a type of unsigned integer. Unsigned int crc_chk(unsigned char* data, unsigned char length){ int j; unsigned int reg_crc=0xFFFF; while(length—){ reg_crc ^= *data++; for(j=0;j<8;j++){ if(reg_crc & 0x01){ /* LSB(b0)=1 */ reg_crc=(reg_crc>>1) ^ 0xA001;...
  • Page 98 ® ® ® ® ® MICRO Content Address Functions 2001H Freq. command Bit 0 1: EF (external fault) on 2002H Bit 1 1: Reset Bit 2-15 Reserved Error code: 00: No errors occurred 01: Over-current (oc) 03: Overheat (oH) 04: Drive overload (oL) 2100H 05: Motor overload1 (oL1) 06: External fault (EF)
  • Page 99 ® ® ® ® ® MICRO Content Address Functions Bit 11 1: Parameters have been locked Bit 12 0: Stop 1: Run Bit 13 1: Jog command Bit 14-15 Reserved 2102H Frequency command F (XXX.XX) 2103H Output Frequency H (XXX.XX) 2104H Output Current A (XXX.XX) 2105H...
  • Page 100 ® ® ® ® ® MICRO #define BRDL 0x0000 #define IER 0x0001 #define BRDH 0x0001 #define LCR 0x0003 #define MCR 0x0004 #define LSR 0x0005 #define MSR 0x0006 unsigned char rdat[60]; /* read 2 data from address 2102H of AC drive with address 1 */ unsigned char tdat[60]={‘:’,’0',’1',’0',’3',’2',’1',’0',’2', ‘0’,’0',’0',’2',’D’,’7',’\r’,’\n’};...
  • Page 101 ® ® ® ® ® MICRO 4 AC Drive Responding Mode: 4.1 When CMD1 is Mirror Telegram, AC drive will respond to the original command. 4.2 When CMD0 is Read Parameter, AC drive will respond. STX(02H) + ADR(1,0) + CMD(1,0) + 8 Data Characters + EXT + CHK(1,0) 8 Data Characters: •...
  • Page 102 ® ® ® ® ® MICRO 5 AC Drive Communication Error: The AC drive receives the messages, but detect a communication error, thus no response is returned. But there will be an error message "CExx" displayed on the keypad. The master device will eventually process a time out condition. The "xx" of CExx"...

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