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Mitsubishi Electric FR-A5NR Instruction Manual

Transistorized inverter
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TRANSISTORIZED INVERTER
-INSTRUCTION MANUAL-
RELAY OUTPUT/
COMPUTER LINK (RS-485)
FR-A5NR

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Summary of Contents for Mitsubishi Electric FR-A5NR

  • Page 1 TRANSISTORIZED INVERTER -INSTRUCTION MANUAL- RELAY OUTPUT/ COMPUTER LINK (RS-485) FR-A5NR...

  • Page 2: Safety Instructions

    Thank you for choosing the Mitsubishi transistorized inverter option unit. This instruction manual gives handling information and precautions for use of this equipment. Incorrect handling might cause an unexpected fault. Before using the equipment, please read this manual carefully to use the equipment to its optimum.
  • Page 3 WARNING Any person who is involved in the wiring or inspection of this equipment should be fully competent to do the work. Always install the option unit before wiring. Otherwise, you may get an electric shock or be injured. Handle this option unit with dry hands to prevent an electric shock. Do not subject the cables to scratches, excessive stress, heavy loads or pinching.
  • Page 4 (3) Usage WARNING Do not modify the equipment. CAUTION When parameter clear or all parameter clear is performed, each parameter returns to the factory setting. Re-set the required parameters before starting operation. For prevention of damage due to static electricity, touch nearby metal before touching this product to eliminate static electricity from your body.

  • Page 5: Table Of Contents

    CONTENTS 1.PRE-OPERATION INSTRUCTIONS Unpacking and Product Confirmation ....................1 Packing Confirmation...........................1 Structure ..............................2 2.INSTALLATION Pre-Installation Instructions........................3 Installation Procedure ..........................3 Wiring..............................5 3.RELAY OUTPUT Internal Block Diagram.........................6 Terminals .............................6 4.COMPUTER LINK FUNCTION Configuration............................7 Connection with a Computer........................9 Operation Mode ..........................10 4.3.1 Operation mode indication ......................10 4.3.2 Operation mode switching ......................11 Input from computer to inverter......................16...
  • Page 6 Programming of the Computer......................22 Adjustment and Setting........................24 4.10 Instructions............................35 4.11 Troubleshooting ..........................36 4.12 Setting Items and Set Data ........................37 4.13 Error Code List...........................41 4.14 ASCII Code List (Reference) ......................42 4.15 Specifications.............................43...

  • Page 7: Pre-Operation Instructions

    1.PRE-OPERATION INSTRUCTIONS 1.1 Unpacking and Product Confirmation Take the option unit out of the package, check the unit name, and confirm that the product is as you ordered and intact. Functions arailable differ between FR-A500(L)/F500(L) series and FR-V500 series, always check before using.

  • Page 8: Structure

    PRE-OPERATION INSTRUCTIONS 1.3 Structure Front view Mounting holes Rear view Mounting Mounting hole hole Terminal block screw SDA SDB RDA RDB RDR SG size M3 Terminal FR-A5NR symbol Connector Option fixing holes...

  • Page 9: Installation

    2.INSTALLATION 2.1 Pre-Installation Instructions Make sure that the input power of the inverter is off. CAUTION With input power on, do not install or remove the option unit. Otherwise, the inverter and option unit may be damaged. 2.2 Installation Procedure (1) Securely insert the connector of the option unit far into the connector of the inverter.
  • Page 10 INSTALLATION Inverter (without cover) Option unit Accessory screw (2 pcs.) Slot 1 Inverter side connector Slot 2 Option fixing hook Option side Slot 3 connector The slots 1, 2, and 3 are provided with an option fixing hook. CAUTION 1. Only one type of option per inverter may be used. When two or more options are mounted, pri- ority is in order of slots 1, 2 and 3, the options having lower priority are inoperative.

  • Page 11: Wiring

    INSTALLATION 2.3 Wiring Route the wires so that they do not take up a lot of space in the control circuit terminal block of the option unit. During wiring, do not leave wire off-cuts in the inverter. They may cause a fault, failure or malfunction. Use the space on the left side of the control circuit terminal unit to route the wires.

  • Page 12: Relay Output

    You can select any of the standard output signals of the inverter and output it as a relay contact signal. 3.1 Internal Block Diagram (1) To make relay (RA) signal setting, set Pr. 330 "RA output se- FR-A5NR lection". Select the output signal setting from output terminal function selection (Pr. 190 to). For parameter details, refer to the Inverter Instruction Manual.

  • Page 13: Computer Link Function

    1) Inverters used with a computer having RS-485 or RS-422 interface Max. number of inverters Computer Station 1 Station 2 Station n connected RS-422: 10 inverters Inverter Inverter Inverter RS-485: 32 inverters FR-A5NR FR-A5NR FR-A5NR Twisted pair RS-485/RS-422 Terminal resistor jumper cable interface terminal...
  • Page 14 Inverter Inverter RS-232C connector FR-A5NR FR-A5NR FR-A5NR Maximum 15m RS-232C cable Terminal Converter resistor jumper RS-422 terminal RS-485 terminal CAUTION *Commercially available converter is required. Commercially available converter examples Model: FA-T-RS40 Converter Industrial System Division Mitsubishi Electric Engineering Co., Ltd.

  • Page 15: Connection With A Computer

    FR-A5NR FR-A5NR FR-A5NR *1. The terminal resistor jumper should only be connected to the remotest FR-A5NR from the computer. (Terminal resistor: 100Ω) *2. Connect in accordance with the manual of the computer used. Note that the computer terminal numbers depend on the model used.

  • Page 16: Operation Mode

    COMPUTER LINK FUNCTION 4.3 Operation Mode The inverter mounted with the option unit (FR-A5NR) has the following operation modes: (1) PU operation [PU]......Controls the inverter from the keyboard of the operation panel (FR- DU04( )) or parameter unit (FR-PU04(V)) (referred to as the "PU") installed to the inverter.

  • Page 17: Operation Mode Switching

    COMPUTER LINK FUNCTION 4.3.2 Operation mode switching (1) Operation mode switching conditions Before switching the operation mode, check that: 1) The inverter is at a stop; 2) Both the forward and reverse rotation signals are off; and 3) The Pr. 79 "operation mode selection" setting is correct. (For setting, use the inverter's operation panel or optional parameter unit.) REMARKS The operation mode differs in function between inverters.
  • Page 18 COMPUTER LINK FUNCTION (2) Operation mode switching method Switched by Switched by parameter unit computer program Computer link External PU operation operation operation (Switching disallowed) Symbol Switching Type Switching Method PU operation → External operation Operate the external operation key sheet on the PU. External operation →...
  • Page 19 COMPUTER LINK FUNCTION (3) Link startup mode selection (Pr. 340) The operation mode at power on and at restoration from instantaneous power failure can be selected. To choose the Computer link operation mode, set "1" or "2" in Pr. 340. The Pr.
  • Page 20 COMPUTER LINK FUNCTION Pr. 340 Mode at Power On or at Restoration Operation Mode Setting from Instantaneous Power Failure Pr. 79 Inverter operates in the computer link operation mode. PU or external operation (Program need not be used for switching) PU operation Inverter operates in the PU operation mode.
  • Page 21 COMPUTER LINK FUNCTION CAUTION Computer programming, which has stopped due to an instantaneous power failure or like during computer link operation, remains stopped even if power is recovered. CAUTION If an instantaneous power failure occurs with "2" set in Pr. 340 "link startup mode selection", the inverter continues operation in the status prior to the instantaneous power failure.

  • Page 22: Input From Computer To Inverter

    COMPUTER LINK FUNCTION 4.4 Input from computer to inverter (1) Operation commands The following commands can be given: FREQROL-A500(L)/FR-F500(L) Series FREQROL-V500 Series Operation command Operation command Terminal name Terminal name (Signal name) (Signal name) Current input selection(AU)* Forward rotation(STF) Forward rotation(STF) Reverse rotation(STR) Reverse rotation(STR)* Low speed(RL)*...

  • Page 23: Input From Inverter To Computer

    COMPUTER LINK FUNCTION (4) Parameter setting write For the parameters indicated in the "data code list" of the Inverter Instruction Manual, their settings can be written. 4.5 Input from inverter to computer (1) Inverter status The following operating status can be monitored. FREQROL-A500(L)/FR-F500(L) Series FREQROL-V500 Series Terminal...
  • Page 24 For the parameters indicated in the "data code list" of the Inverter Instruction Manual, their settings can be read. (4) Operation at alarm occurrence Operation Mode Computer link Alarm Occurrence Status External operation PU operation operation (when FR-A5NR is used) Inverter operation Stop Stop Stop Inverter fault Continued Continued Continued Data...
  • Page 25 COMPUTER LINK FUNCTION (5) Communication error Error Occurrence Error Code Communication error (communication from PU connector) E.PUE Communication error (FR-A5NR) E.OP1 to E.OP3 (6) Inverter reset Operation Mode Resetting Method Computer link operation External operation PU operation (CAUTION) Computer user program...

  • Page 26: Operation Mode-Based Functions

    COMPUTER LINK FUNCTION 4.6 Operation mode-based functions (1) Operation mode-based functions Operation Mode Control Computer link operation Item Lcation PU operation External operation (when FR-A5NR is used) Operation command (start) Allowed Disallowed Disallowed Allowed (*1) Allowed (combined operation Disallowed Running frequency setting...

  • Page 27: Operation

    4) The inverter CPU checks the data for errors, processes the data in accordance with the check result, and creates reply data. 5) The reply data is converted into serial signals by the communication LSI in the FR-A5NR unit and is then converted at the interface level conforming to the RS-422 or RS-485 standard, then returned to the computer.

  • Page 28: Programming Of The Computer

    COMPUTER LINK FUNCTION 4.8 Programming of the Computer (1) For full information on the communication protocols, whether communication operation is performed or not, data format types, data formats, and data explanations, refer to the "Pr. 117 to Pr. 124" sections of the inverter manual.
  • Page 29 COMPUTER LINK FUNCTION Line number I/O file initial setting Transmission data 1000 processing Receive data processing Interrupt Data setting Data import Sum code calculation Screen display Data transmission 1040 Programming instructions 1) The inverter does not accept data from the computer if it has an error. For this reason, a retry program for data error must be included in the user program.

  • Page 30: Adjustment And Setting

    COMPUTER LINK FUNCTION 4.9 Adjustment and Setting Parameters Fitting this option unit adds the following parameters. Parameter Setting Factory Refer Name Setting Range Number Increments Setting Inverter station number 0 to 31 Communication speed 3, 6, 12, 24, 48, 96, 192 0, 1 (data length 8) Stop bit length/data length 10, 11 (data length 7)
  • Page 31 COMPUTER LINK FUNCTION 3) Station numbers do not have to be sequential and may be skipped, e.g. as shown below: Station 3 Station 0 Station 1 Station 21 Station 6 Computer Station number setting example (2) Communication specifications Refer to the following table and set the parameters: (%: Factory setting) Parameter Instruction Description...
  • Page 32 COMPUTER LINK FUNCTION (3) Number of data communication error retries Set the permissible number of retries at occurrence of data receive error. If the number of consecutive errors exceeds the permissible value, the inverter will come to an alarm stop. Parameter Instruction Name...
  • Page 33 COMPUTER LINK FUNCTION (4) Permissible communication time interval Set the permissible communication time interval between the computer and inverter. (If no-communication with the computer persists for more than the permissible time, the inverter will come to an alarm stop due to time-out error.) Parameter Instruction Name...
  • Page 34 COMPUTER LINK FUNCTION (6) Control location selection In the computer link operation mode, operation can be performed by signals from external terminals in accordance with the settings of Pr. 338 "operation command write" and Pr. 339 "speed command write". !FR-A500(L)/F500(L) series Operation command write Control 0: Computer 0: Computer 1: External...
  • Page 35 COMPUTER LINK FUNCTION !FR-A500(L)/F500(L) series Operation command write Control 0: Computer 0: Computer 1: External 1: External (Pr. 338) location Remarks selection Speed command write (Pr. 339) 0: Computer 1: External 0: Computer 1: External 7 External thermal relay input (OH) External External External...
  • Page 36 COMPUTER LINK FUNCTION !FR-A500(L)/F500(L) series Operation command write Control 0: Computer 0: Computer 1: External 1: External (Pr. 338) location Remarks selection Speed command write (Pr. 339) 0: Computer 1: External 0: Computer 1: External Pr. 59 Remote setting (RH, RM, RL) Computer External Computer...
  • Page 37 COMPUTER LINK FUNCTION CAUTION 1. If the FR-HC is connected, if the inverter operation enable signal (X10) is not assigned when the FR-HC is used (Pr. 30 = "2") or if the PU operation interlock signal (X12) is not assigned when the PU operation interlock function is set (Pr.
  • Page 38 COMPUTER LINK FUNCTION ! FR-V500 series Control Operation command write 0: Computer 0: Computer 1: External 1: External (Pr. 338) location Remarks selection Speed command write (Pr. 339) 0: Computer 1: External 0: Computer 1: External Forward rotation command, (STF) Computer Computer External...
  • Page 39 COMPUTER LINK FUNCTION ! FR-V500 series Operation command write Control 0: Computer 0: Computer 1: External 1: External location (Pr. 338) Remarks selection Speed command write (Pr. 339) 0: Computer 1: External 0: Computer 1: External 12 PU operation external interlock (X12) External External External...
  • Page 40 COMPUTER LINK FUNCTION CAUTION 1. For details of Pr. 180 to Pr. 183, Pr. 187 (input terminal function selection), refer to the Inverter Instruction Manual. 2. When the MRS signal is assigned for both Computer and External, the output halt command is as indicated in the following table.

  • Page 41: Instructions

    COMPUTER LINK FUNCTION 4.10 Instructions (1) Programming instructions 1) The inverter does not accept data from the computer if it has an error. For this reason, a retry program for data error must be included in the user program. 2) A request for any data communication, e.g. operation command, monitoring, is always given by the computer and the inverter will return data to the computer.

  • Page 42: Troubleshooting

    4) Is the permissible communication time interval set correctly? (4) The inverter is brought to alarm stop during operation due to a communication fault 1) Are the FR-A5NR unit and communication cables fitted properly? (Check for contact fault, open cable, etc.) 2) Is the computer operating correctly?

  • Page 43: Setting Items And Set Data

    This section gives only the information different from that of computer link operation (RS-485 communica- tion) performed from the PU connector of the inverter fitted with the FR-A5NR. For items not given here, refer to the Inverter Instruction Manual (Pr. 117 to Pr. 124).
  • Page 44 COMPUTER LINK FUNCTION Instruction Item Description Code H00 to HFF: Inverter status monitor b0: Inverter running (RUN)* b1: Forward running (STF) 0 0 0 0 0 0 1 0 b2: Reverse running (STR) b3: Up to frequency (SU)* (For example 1) Inverter status b4: Overload (OL)* [Example 1] H02 ..
  • Page 45 COMPUTER LINK FUNCTION ! FR-V500 series Instruction Item Description Code H0000: Computer link operation Read H0001: External operation H0002: PU operation Operation H0000: Computer link operation mode H0001: External operation Write H0002: PU operation (Setting is enabled only during switch over mode (Pr.79="6").) H00 to HFF: Run command b0: - b1: Forward rotation (STF)
  • Page 46 COMPUTER LINK FUNCTION Instruction Item Description Code H00 to HFF: Inverter status monitor b0: Inverter running (RUN) b1: Forward running 0 0 0 0 0 0 1 0 b2: Reverse running b3: Inverter running (RUN/DO1)* For example 1) b4: Up to speed (SU/DO2)* [Example 1]H02 ..

  • Page 47: Error Code List

    COMPUTER LINK FUNCTION 4.13 Error Code List The corresponding error code in the following list is displayed if an error is detected in any communication request data from the computer: Error Code Item Definition Inverter Operation The number of errors consecutively detected in Computer NAK error communication request data from the computer is greater than the permissible number of retries.

  • Page 48: Ascii Code List (Reference)

    COMPUTER LINK FUNCTION 4.14 ASCII Code List (Reference) ASCII codes Most significant 4 bits : Indicates codes often used. (DEL) (SP) ‘ 1 TC (SOH) (STX) " (ETX) (EOT) 5 TC (ENQ) TC (NAK) (ACK) TC (SYN) & (ETB) (BS) (HT) (LF) (VT)

  • Page 49: Specifications

    COMPUTER LINK FUNCTION 4.15 Specifications !Control power: Supplied by the inverter 1) Power supply !Communication power: 5VDC, max. 60mA !Shared between RS-422 and RS-485 [EIA Standard] 2) Conforming standard !Multidrop link system 3) Transmission form !Twisted pair cable 4) Communication cable !Max.
  • Page 50 COMPUTER LINK FUNCTION 9) Response time Inverter data processing time Data transmission time data check time = waiting time (Refer to the following formula) (setting × 10ms) (12ms) Computer ↓ Inverter Inverter ↓ Computer 10ms or longer required Data transmission time (Refer to the following formula) [Data transmission time formula] Communication specifi-...
  • Page 51 COMPUTER LINK FUNCTION !Example: Response time when forward (reverse) rotation command is given by communication <Calculation example 1> Data transmission time 20ms or more 1)Baudrate = 9600 bps, number of data char- (Refer to the calculation Inverter data processing time example 1 on the right) acters = 12, stop bit length = 2 bits, data = waiting time...
  • Page 52 COMPUTER LINK FUNCTION <Calculation example 2> <Calculation example 1> 1)Baudrate = 9600 bps, number of data char- Format A' acters = 5, stop bit length = 2 bits, data Inverter Instruction length = 8 bits, parity check = yes, CR, LF station Data check...
  • Page 53 REVISIONS *The manual number is given on the bottom left of the back cover. Print Date *Manual Number Revision Oct., 1997 IB(NA)-66835-A First edition Jan., 2002 IB(NA)-66835-B Addition Adaptable inverters...

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