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TECO-Westinghouse Motor GA7200 Operation Manual

380 to 460v 1hp~450hp 200 to 230v 1hp~100hp ac inverter
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4H358D0030007
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Operation Manual
GA7200
AC Inverter
380 to 460V 1HP~450HP
200 to 230V 1HP~100HP

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Summary of Contents for TECO-Westinghouse Motor GA7200

  • Page 1 4H358D0030007 – Operation Manual GA7200 AC Inverter 380 to 460V 1HP~450HP 200 to 230V 1HP~100HP...
  • Page 2 The GA7200 is a high-performance/low noise general-purpose inverter. This manual describes the operation procedures for the digital operator (JNEP--12) provided with the GA7200. A thorough understanding of this operation manual and the GA7200 installation manual is recommended before using the GA7200.

  • Page 3: Table Of Contents

    CONTENTS Page 1. OUTLINE....................5 1.1 MAIN FUNCTIONS..........................5 1.2 DIGITAL OPERATOR KEYPAD......................6 2. DRIVE MODE AND PROGRAM MODE..........8 2.1 DISPLAY CONTENTS........................9 2.2 CONSTANT GROUPS ........................10 3. CONSTANTS SETTING AND CHANGE ..........11 3.1 STANDARD FACTORY SETTING ..................... 11 3.2 FREQUENCY REFERENCE SETTING AND CHANGE ..............
  • Page 4 ..........101 7.8 MONITOR DISPLAY ............Un- ..........117 8. FAULT DISPLAY AND TROUBLESHOOTING ........119 9. GA7200 TERMINAL FUNCTIONS ............123 10. APPENDIX (OPTIONS AND PERIPHERALS) ........124 10.1 OPTION CARDS ..........................124 10.2 ANALOG OPERATOR........................125 10.3 BRAKING RESISTOR AND BRAKING UNIT................... 126 10.4 AC REACTOR ..........................

  • Page 5: Outline

    1. OUTLINE 1.1 MAIN FUNCTIONS Function Description GA7200 can be operated easily with the Drive Mode digital operator. Function selection and constant setting for Program Mode GA7200 can be performed with the digital operator. Monitoring of output frequency, output current, output voltage or status of run / stop...

  • Page 6: Digital Operator Keypad

    1.2 DIGITAL OPERATOR KEYPAD Mode Display Drive Mode Display Red lamp lights in DRIVE mode and goes out in PRGM mode. Rotation Direction Display Red lamp lights in DRIVE mode and goes out in PRGM mode. REMOTE Mode Red lamp lights when controlled by external terminal commands. SEQ: When RUN/STOP signal is selected from terminals.
  • Page 7 RUN or STOP lamp changes in accordance with the following operations. INVERTER OUTPUT FREQUENCY STOP STOP FREQUENCY SETTING ¡ ´ ¡ ´ Lamp STOP ¡ ´ Lamp : Lit : Blink : Off ¡ ´ ¢ w 7¢ w...

  • Page 8: Drive Mode And Program Mode

    2. DRIVE MODE AND PRGM (PROGRAM) MODE PRGM Selection of DRIVE mode or PRGM mode can be performed by using the DRIVE key when the inverter is stopped. When function selection or a change of set value is required, switch to the PRGM mode.

  • Page 9: Display Contents

    2.1 DISPLAY CONTENTS POWER ON DRIVE MODE MODE SWITCHABLE ONLY AT STOPPING PRGM PRGM MODE DRIVE MODE DRIVE Display of faults which occurred before power supply was turned OFF Frequency reference value display Output frequency monitor display If a fault occurs, the contents are displayed.

  • Page 10: Constant Groups

    2.2 CONSTANT GROUPS Constants of GA7200 are classified as follows: Constant Group Contents Frequency reference setting Constant group able to be changed while running Constant, among control constant groups, related to operation change characteristics Constant, among system constant groups, to be used for...

  • Page 11: Constants Setting And Change

    3. CONSTANTS SETTING AND CHANGE 3.1 STANDARD FACTORY SETTING Contents Set Value Frequency Reference Input Can be set by digital operator. Can be set by digital operator. Run Command Input (RUN/STOP/FWD/REV/JOG) V/f Pattern 60Hz, constant torque characteristics (Standard motor) Acceleration Time 10 seconds Motor Protection Electronic overload thermal protection (Standard motor)

  • Page 12: Constants Change And Function Selection

    3.3 CONSTANTS CHANGE AND FUNCTION SELECTION All constants are changed and functions are selected in the same manner. When changing Cn- and Sn- constants, program mode must be selected. (Example) Jog frequency (An-09) set value is changed from 6Hz to 10Hz. Description Keypad Operation Digital Operator Display...

  • Page 13: Operation Errors

    3.4 OPERATION ERRORS “ “ The constant setting fault is checked when power is applied or PRGM changed to DRIVE mode. Digital operator displays faults if the is detected. The fault contact output of the inverter is not executed. If the following “conditions” occur at power ON or changing PRGM into...

  • Page 14: Wiring

    4. WIRING GA7200 has been programmed to operate from the digital operator when shipped from the factory. Therefore, just connecting the main circuit power enables drive operation. Note: When external signals or external devices and digital operator are used, refer to Section 7, “CONSTANTS/FUNCTION LIST”, in this manual.
  • Page 15 460V Class 10 HP (7.5kW, 13.7kVA) or smaller 3-PHASE GA7200 POWER SUPPLY JNEP--12 15/20 HP (11/15kW, 20.6/27.4kVA) 3-PHASE GA7200 POWER SUPPLY JNEP--12 25 HP (18.5kW, 34kVA) or larger 3-PHASE GA7200 POWER SUPPLY JNEP--12 S400 ¢ w 15¢ w...

  • Page 16: Terminal Functions Main Circuit

    4.2 TERMINAL FUNCTIONS MAIN CIRCUIT VOLTAGE 230V CLASS 460V CLASS Rating 1~10HP 15~20HP 25~30HP 40~100HP 1~10HP 15~20HP 25~60HP 75~450HP Terminal R(L1) Circuit input power supply S(L2) T(L3) U(T1) V(T2) Inverter output W(T3) B1/¡ ³ + B1/¡ ³ + ,B2: B1/¡ ³ + , B1/¡...

  • Page 17: Control Circuit

    CONTROL CIRCUIT Classifi- Terminal Signal Function Description Signal Level cation Forward operation-stop Forward run at closed, stop at open signal Reverse operation-stop Reverse run at closed, stop at open signal External fault input Fault at closed, normal state at open Fault reset input Reset at closed Master/Aux.

  • Page 18: Digital Operator Programming

    5. DIGITAL OPERATOR PROGRAMMING The following is an operation example for the digital operator keypad. PRECAUTION Before Power ON For the 460V class, 25HP (18.5kW, 34kVA) or larger inverter, change the supply voltage selection tap of control transformer to the same tap as input voltage. Refer to Installation Manual. Before Operation Be sure to set input voltage in control constant Cn-01.
  • Page 19 Description Keypad Operation Digital Operator Display Remarks Cont’d PRGM • Select DRIVE mode. ¡ ³ FWD JOG DRIVE lights. DRIVE • Select output frequency DSPL monitor display. • Select rotating direction. lights. (FWD is default at power ON.) • Jog operation. Depress •...

  • Page 20: Program Mode Setting And Change

    6. PROGRAM MODE SETTING AND CHANGE The following shows an example of main functions and characteristics. 6.1 V/f PATTERN SETTING Sn-02 16 types of V/f patterns are available according to motor type, load characteristics and operating conditions. PRECAUTION To select V/f pattern, set the inverter input voltage to Cn-01. For details on the different V/f patterns, refer to Par.
  • Page 21 ¡ ½ INPUT VOLTAGE SETTING (Example) Set input voltage to 220V. Description Keypad Operation Digital Operator Display Remarks PRGM • Select PRGM mode. DRIVE DRIVE • Select Cn-01. Depress three times. DSPL • Constant set value DATA ENTER is displayed. •...
  • Page 22 ¡ ½ ARBITRARY V/f SETTING (Sn-02, Cn-02 to -08) (Example) Change to “F = 120Hz, V = 18V”. Description Keypad Operation Digital Operator Display Remarks PRGM • Select PRGM mode. DRIVE DRIVE • Select Sn-02. Depress twice. DSPL • Constant set value DATA ENTER is displayed.
  • Page 23 Set Sn-02 to F. max. (Cn-03) (Cn-06) min. (18V) (Cn-08) min. max. (Cn-07) (Cn-05) (Cn-04) (Cn-02) (120Hz) If F ¡ Ù F ¡ Ö F ¡ Ù F is not satisfied, a setting error occurs. MAX. MIN. When V/f pattern is selected to be linear, set the same value for Cn-07 and Cn-05.

  • Page 24: Accel/Decel Time Setting

    6.2 ACCEL/DECEL TIME SETTING bn-01 to -04 (Sn-06, Sn-15 to -18) Accel/decel time can be changed in DRIVE mode during running. • Acceleration and deceleration time each has two set values. When “ accel/decel time change” is selected (7 is set in Sn-15, Sn-16, Sn-17 or Sn-18) as a multi-function terminal function, the values set in bn-03 and-04 become effective.
  • Page 25 Description Keypad Operation Digital Operator Display Remarks PRGM • Select PRGM mode. DRIVE DRIVE • Select bn-01. DSPL • Constant set value DATA ENTER is displayed. • Set or change RESET constant. Displayed for 0.5 • Constant value is DATA second.

  • Page 26: Application Example

    6.2 ACCEL/DECEL TIME SETTING (Cont’d) bn-01 to -04 (Sn-06, Sn-15 to -18) ¡ ¯ Input signal selection Sn-06 Operation mode selection 3 DIGIT Soft start S-curve characteristics S-curve 0.2 sec. S-curve 0.5 sec. S-curve 1.0 sec. Master speed frequency reference Normal characteristics Reverse characteristics Processing when frequency reference is missing...

  • Page 27: Input Signal Selection

    6.3 INPUT SIGNAL SELECTION Sn-04 (Example) Change from operator control to terminal control of run/stop and frequency reference. Description Keypad Operation Digital Operator Display Remarks PRGM • Select PRGM mode. DRIVE DRIVE • Select Sn-04. DSPL • Constant display Refer to the DATA diagram shown ENTER...

  • Page 28: Protective Characteristics Selection

    6.4 PROTECTIVE CHARACTERISTICS SELECTION Sn-10 to -14 Protective characteristics can be selected by Sn-10, Sn-11, Sn-12 and Sn-14. (Example) Operation is continued after recovery from momentary power loss and the electronic thermal protection is turned OFF. Description Keypad Operation Digital Operator Display Remarks PRGM •...
  • Page 29 Protective characteristics ¡ ¯ Sn-10 Protective characteristic 1 (stall prevention) DIGIT Decel time during stall Stall prevention during prevention acceleration bn-02 Effective bn-04 Ineffective Stall prevention during Stall prevention during running deceleration Effective Effective Ineffective Ineffective Sn-11 Protective characteristic 2 (Momentary power loss ride-thru) DIGIT Protection for internal braking resistor...
  • Page 30 6.4 PROTECTIVE CHARACTERISTICS SELECTION (Cont’d) Sn-10 to -14 Sn-13 Protective characteristic 4 (Fan fault protection) DIGIT Not used Process at fan fault detection 00 Ramp to stop by bn-02 01 Coast to stop 10 Ramp to stop by bn-04 Operation to continue Sn-14 Protective characteristic 5 (Motor protection) DIGIT Electronic thermal motor...

  • Page 31: Multi-Function Input Selection

    6.5 MULTI-FUNCTION INPUT SELECTION Sn-04, Sn-15 to -19, bn-09 Response to constant input is selected by the setting of Sn-15 to -19. (Example 1) 2-step speed operation by analog reference. (Set Sn-04 to 0000) Keypad Operation Digital Operator Display DSPL DATA ENTER Constant Setting...
  • Page 32 6.5 MULTI-FUNCTION INPUT SELECTION (Cont’d) Sn-04, Sn-15 to -19, bn-09 MCCB GA7200 MOTOR L1(R) T1(U) L2(S) T2(V) L3(T) T3(W) FWD RUN/STOP MULTI-STEP SPEED REFERENCE 1 MASTER SPEED/ AUXILIARY CHANGE SEQUENCE COMMON SHIELDED CONNECTION 2kΩ SPEED SETTING POWER SUPPLY MASTER SPEED...
  • Page 33 (Example 2) 5-step speed operation + energy-saving operation (terminal 8) Keypad Operation Digital Operator Display Remarks DSPL DATA ENTER RESET DATA Displayed for 0.5 ENTER second. Confirm the display for each DSPL constant. DATA ENTER The following shows a sequence to perform 5-step speed operation. Constant Setting Factory Terminal...
  • Page 34 6.5 MULTI-FUNCTION INPUT SELECTION (Cont’d) Sn-04, Sn-15 to -19, bn-09 FRE- QUENCY Fref REF. 4 FRE- (An-04) QUENCY AUX. REF. 3 MASTER FRE- SPEED QUENCY (An-03) FRE- REF. QUENCY REF.* (An-02) JOG FREQUENCY (An-01) (An-09) TERMINA FWD RUN MULTI-STEP SPEED REFERENCE 1 MULTI-STEP SPEED REFERENCE 2 (MASTER/AUX...
  • Page 35 (Example 3) 9-step speed operation Keypad Operation Digital Operator Display Remarks DSPL DATA ENTER Displayed for 0.5 RESET second. Confirm the DATA display for each ENTER constant. DSPL DATA ENTER Displayed for 0.5 second. Confirm the RESET display for each DATA constant.
  • Page 36 6.5 MULTI-FUNCTION INPUT SELECTION (Cont’d) Sn-04, Sn-15 to -19, bn-09 FRE- QUENCY FRE- REF. 8 QUENCY FRE- (An-08) Fref REF. 7 QUENCY (An-07) FRE- REF. 6 QUENCY (An-06) FRE- REF. 5 QUENCY REF. 4 (An-05) FRE- AUX. QUENCY FRE- (An-04) MASTER REF.

  • Page 37: Contact Output Selection

    6.6 CONTACT OUTPUT SELECTION Sn-20 Contact output function can be selected by the setting of Sn-20. (Example) Overtorque signal is read out from contact output. Applicable inverter: 230V, 10HP (rated current 32A) Applicable motor : 10HP (7.5kW), 4P (motor rated current 26.8A) (TECO MOTOR) Overtorque detection level is equivalent to motor rated torque.
  • Page 38 6.6 CONTACT OUTPUT SELECTION (Cont’d) Sn-20 Keypad Operation Digital Operator Display Remarks DSPL DATA ENTER RESET DATA Displayed for 0.5 ENTER second. Confirm the display for each DSPL constant. DATA ENTER RESET DATA ENTER DSPL DATA ENTER =84% RESET Displayed for 0.5 DATA ENTER second.

  • Page 39: Frequency Reference Change

    6.7 FREQUENCY REFERENCE CHANGE bn-05, -06 Any output frequency value for frequency set value (0 to 10V or 4 to 20mA) can be set. (Example) Adjust to 10% speed (6Hz) at frequency reference input 4mA and 100% speed at 16.8mA (Set bn-05 = 0122.5 and bn-06 = +010). Keypad Operation Digital Operator Display Remarks...
  • Page 40 6.7 FREQUENCY REFERENCE CHANGE (Cont’d) bn-05, -06 122.5 (bn-05) REFERENCE INPUT BIAS (bn-06) 16.8mA 20mA (0V) (8V) (10V) FREQUENCY REFERENCE INPUT Note: Frequency reference gain (bn-05) and frequency reference bias (bn-06) can be changed while running in DRIVE mode. *1 How to calculate gain 100 −...

  • Page 41: Dc Injection Braking (Dc

    6.8 DC INJECTION BRAKING (DC) Cn-10 to -13 DC injection braking at starting or stopping function is selected by the setting of Cn-10 to -13. DC INJECTION BRAKING MINIMUM START OUTPUT Cn-1 FREQUEN CY C 7 Cn-1 Cn-1 DC INJECTION DC INJECTION BRAKING TIME AT BRAKING TIME AT...

  • Page 42: Full-Range Dc Injection Braking Stop (Dcb Stop)

    6.9 FULL-RANGE DC INJECTION BRAKING STOP (DCB STOP) Sn-04 = 10XX, Cn-12 When the full-range DC injection braking stop function is used, the inverter can be stopped without a braking resistor. When stop command is input, DC injection braking stop is executed. DC injection braking time while stopping is set by Cn-12 at 10% speed and varies according to output frequency at stop command input as shown below.
  • Page 43 6.10 UPPER/LOWER LIMT OF FREQUENCY REFERENCE Cn-14 , -15 Output frequency upper/lower limit value can be set. When the lower limit value is less than minimum output frequency, rotation continues at the lower limit value until frequency reference reaches the value, by inputting the run command. (Example) Set upper, lower limit of frequency reference.

  • Page 44: Frequency Reference

    6.11 PROHIBITED (SKIP) FREQUENCY Cn-16 to -19 When an operation is required to avoid mechanical resonance frequency, the setting prohibited frequency function is effective. Setting prohibited frequency is set in Cn-16 to -18 in units of 0.1Hz. Setting prohibited frequency width is set to Cn-19 in units of 0.1Hz. Cn-16 Note: Ineffective when set value is 0.0Hz.

  • Page 45: Display Mode Change

    6.12 DISPLAY MODE CHANGE Cn-20 (Example) Frequency reference An- is set or read in the units of 0.01%. Keypad Operation Digital Operator Display Remarks DSPL DATA ENTER Displayed for 0.5 RESET second. Confirm the DATA display for each ENTER constant. Operator Display Mode Cn-20 Unit of Setting / Reading...

  • Page 46: Stall Prevention Level While Running

    6.13 STALL PREVENTION LEVEL WHILE RUNNING Cn-30 (Sn-10) If the inverter output current exceeds Cn-30 stall prevention level for more than 100ms, the output frequency will decrease until output current is below value in Cn-30. Once current has dropped below set value in Cn-30, the inverter rated current will increase back to set value operation.

  • Page 47: Auto Reset/Restart Operation At Fault

    6.14 AUTO RESET/RESTART OPERATION AT FAULT (FAULT RETRY) Cn-36 If a protective function (OC, OV, OL1, OL2, OL3, OH, UV1) operates while running, auto reset/restart function can be selected. Reset/restart operation can be performed up to 10 times. By setting Cn-36 to 0, reset/restart operation at fault will not performed. <...

  • Page 48: Initializing Constants

    6.15 INITIALIZING CONSTANTS Sn-03 (Example) Replacing control board. Select inverter capacity and set V/f pattern and initialize constants. All constants except Sn-01 (inverter capacity) and Sn-02 (V/f pattern) are initialized to the data at the factory prior to shipment. Description Keypad Operation Digital Operator Display Remarks...
  • Page 49 6.15 INITIALIZING CONSTANTS Sn-03 Description Keypad Operation Digital Operator Display Remarks Cont’ • Select initialization Constant is DSPL constant. initialized • Select Sn-03. DATA • Data is displayed. ENTER • Set to " 1110". RESET Displayed for 0.5 second. Confirm the DATA •...

  • Page 50: Constants/Function List

    7. CONSTANTS/FUNCTION LIST 7.1 FREQUENCY REFERENCE These references are used during multi-speed operation. Set values of An- can be changed or read during running in DRIVE mode. List of An- constants Factory Data Name Unit Setting - Range Setting Frequency reference 1 0.01Hz 0.00Hz to 400.00Hz 0.00Hz...
  • Page 51 7.2 CONSTANTS CHANGE WHILE RUNNING Set values of bn- can be changed or read while running in DRIVE mode. List of bn- constants Factory Data Name Unit Setting - Range Setting Acceleration time 1 0.1s 0.0 to 6000.0s 10.0s Deceleration time 1 0.1s 0.0 to 6000.0s 10.0s...

  • Page 52: Constant Change While Running

    7.2 CONSTANT CHANGE WHILE RUNNING (Cont'd) (1) Acceleration Time 1 (bn-01) Acceleration time 1 is enabled when the accel/decel time change command of multi-function terminals is “open”, or the accel/decel time change function is not provided for the multifunction terminals. The acceleration time, in which frequency reference goes from 0% to 100%, is set in units of 0.1 second.
  • Page 53 (7) Torque Compensation Gain (bn-07) Torque compensation gain is set in units of 0.1. (8) Motor Rated Slip (bn-08) Motor Rated slip is set in units of 0.1% TORQUE Simplified speed control is performed without encoder (PG or TG). With frequency offset f to f , speed SMALL LOAD...
  • Page 54 7.2 CONSTANT CHANGE WHILE RUNNING (Cont'd) (9) Energy-saving Level Gain (bn-09) Energy-saving level gain is set in units of 1%. (10) Monitor No. after Turning ON Power Supply (bn-10) Data to be monitored after turning ON power supply is selected with constant No.
  • Page 55 7.3 SYSTEM CONSTANTS System Constants List (1/5) Factory Setting Function Data Name Description Basic Inverter Capacity Inverter capacity selection ——*1 Setting V/f pattern selection Constant Setting and reading of An- , bn- , Sn- 0000 enabled Display of Operator Setting and reading of An- : reading of bn- 0101 , Cn-...
  • Page 56 System Constants List (2/5) Factory Setting Function Data Name Description Digit Digit Digit Digit 0.2 second S-curve ¡ Ð ¡ Ð No S-curve ¡ Ð ¡ Ð S-curve at Accel / Decel Time S-curve 0.5 second ¡ Ð ¡ Ð S-curve 1.0 second ¡...
  • Page 57 7.3 SYSTEM CONSTANTS (Cont’d) System Constants List (3/5) Factory Setting Function Data Name Description Digit Digit Digit Digit Analog output (terminals 21-22) depends on ¡ Ð ¡ Ð ¡ Ð Sn-05 4th digit and Sn-09 2nd digit Analog Output Selection Method Analog output (terminals 21-22) is set by ¡...
  • Page 58 7.3 SYSTEM CONSTANTS (Cont’d) System Constants List (4/5) Factory Setting Function Data Name Description Digit Digit Digit Digit External fault input: NO-contact input ¡ Ð ¡ Ð ¡ Ð External Fault Signal Level External fault input: NC-contact input ¡ Ð ¡...
  • Page 59 7.3 SYSTEM CONSTANTS (Cont’d) System Constants List (5/5) Factory Setting Function Data Name Description Digit Digit Digit Digit Set Data Terminal 5 Selects terminal 5 function (factory preset for multi-step 00 - FF Function speed reference 1) Contact Terminal 6 Selects terminal 6 function (factory preset for multi-step 00 - FF Input...
  • Page 60 *1 Differs according to inverter capacity. *2 Initialization (Sn-03 = 1110, 1111) After depressing the ENTER key, input the initial value of An- , bn- , Sn- , Cn- , (except Sn-01,Sn-02) into NV-RAM. When the value is written in without an error, is displayed.
  • Page 61 ù þ Inverter Capacity Selection Sn-01 Inverter capacity has been preset at the factory. However, if a spare control board is used, reset the inverter capacity referring to the table below. Control constant Cn- factory setting values (initial values) differ according to Sn-01 setting. Inverter Capacity Selection 230V Class Data of Sn-01...
  • Page 62 7.3 SYSTEM CONSTANTS (Cont’d) Inverter Capacity Selection 230V Class Data of Sn-01 Name Inverter rating Inverter rated capacity 27.4 Max. applicable motor capacity HP (kW) (15) (18.5) (22) (30) (37) (45) (55) (75) Inverter rated current Cn-09 Motor rated current 50.3 62.9 72.9...
  • Page 63 Inverter Capacity Selection 460V Class Data of Sn-01 Name Inverter rating Inverter rated capacity 10.3 13.7 20.6 27.4 Max. applicable motor capacity HP (kW) (0.4) (0.75) (1.5) (2.2) (3.7) (5.5) (7.5) (11) (15) (18.5) (22) Inverter rated current Cn-09 Motor rated current 10.0 12.6 18.6...
  • Page 64 7.3 SYSTEM CONSTANTS (Cont’d) Inverter Capacity Selection 460V Class Data of Sn-01 Name Inverter rating Inverter rated capacity Max. applicable motor capacity HP (kW) (30) (37) (45) (55) (75) (110) (160) (185) (264) (330) Inverter rated current Cn-09 Motor rated current 48.7 59.0 70.5...
  • Page 65 V/f Pattern Selection Sn-02 V/f pattern is selected by the setting of Sn-02. When V/f pattern is selected, set input voltage of the inverter in Cn-01. Data ¡ ³ 0 - ¡ ³ E (of Sn-02): Change disabled Data ¡ ³ F (of Sn-02): Change enabled (V/f patterns are shown on the following pages).
  • Page 66 7.3 SYSTEM CONSTANTS (Cont’d) V/f Pattern for 230V Class* 0.5 to 2 HP (0.4 to 1.5kW) Specifications Sn-02 V/f Pattern Specifications Sn-02 V/f Pattern ¡ ³ Starting torque ¡ ³ ¡ ³ ¡ ³ 50Hz 50Hz ¡ ³ High 16 20 15 20 11 14 ¡...
  • Page 67 V/f Pattern of 230V Class* 3 to 60 HP (2.2 to 45kW) Specifications Sn-02 V/f Pattern Specifications Sn-02 V/f Pattern Starting ¡ ³ torque ¡ ³ ¡ ³ ¡ ³ 50Hz 50Hz 25 28 ¡ ³ 20 22 High Starting ¡...
  • Page 68 7.3 SYSTEM CONSTANTS (Cont’d) V/f Pattern of 230V Class* 75 and 100HP (55 and 75kW), (75 to 450HP for 460V class) Specifications Sn-02 V/f Pattern Specifications Sn-02 V/f Pattern Starting ¡ ³ torque ¡ ³ ¡ ³ ¡ ³ 50Hz 50Hz ¡...
  • Page 69 Operation Mode Selection 1 Sn-04 (1) 1st digit (frequency reference selection) 1st digit = 0: Reference input from control circuit terminal 13 or 14 is the master speed frequency reference. 1st digit = 1: Frequency reference 1 (An-01) is the master speed frequency reference. Note: For combination of multi-step speed operation, refer to pages 36 and 85.
  • Page 70 7.3 SYSTEM CONSTANTS (Cont’d) (3) 3rd digit, 4th digit (stop method selection) Stop method differs by the setting of 3rd and 4th digits as shown below. ¡ ³ 1 Sn-04 = 00 XX RAMP stop CLOSED OPEN RUN COMMAND OUTPUT FREQUENCY DECELERATION TIME DC INJECTION BRAKING...
  • Page 71 Sn-04 = 10 XX Full-range DC injection braking stop DC injection braking time differs by the output frequency when stop command is input as shown below. CLOSED OPEN RUN COMMAND OUTPUT FREQUENCY DC INJECTION BRAKING TIME 0.5s CUTOFF OF INVERTER OUTPUT Cn-12 x 10 DC INJECTION...
  • Page 72 7.3 SYSTEM CONSTANTS (Cont’d) Operation Mode Selection 2 Sn-05 (1) 1st digit Select processing to be performed when the STOP key of the digital operator is depressed during running by control circuit terminals. 1st digit 0: During running by signals from control circuit terminals, the STOP key from the digital operator is accepted.
  • Page 73 Operation Mode Selection 3 Sn-06 (1) 1st digit, 2nd digit (S-curve selection of soft starter) The S-curve characteristics of the soft starter depend on the setting of the 1st and 2nd digits as follows: 2nd digit 1st digit Contents The S-curve characteristic is 0.2 second. No S-curve characteristics.
  • Page 74 7.3 SYSTEM CONSTANTS (Cont’d) (b) The chart at FWD/REV run change without S-curve characteristic The figure below shows the time chart at FWD/REV run change during deceleration and stop. FWD RUN COMMAND REV RUN COMMAND DECELER- ACCELER- ¡ ¯ ATION ATION DC INJECTION BRAKING TIME...
  • Page 75 (3) 4th digit (operation selection when frequency reference is missing) 4th digit = 0: Normal operation (varies with change of reference) 4th digit = 1: Operation continues with 80% frequency. When 4th digit = 1 is set, the current master speed frequency reference is compared at all times with the one that occurred 0.4 second before.
  • Page 76 7.3 SYSTEM CONSTANTS (Cont’d) Operation Mode Selection 4 Sn-07 Define the operation at overtorque detection. Overtorque is detected by the following formula: Inverter output current B overtorque detection level (Cn-26, Initial value: 160%) (Detection time Cn-27, Initial value: 0.1 second, Hysteresis fixed at 10%) (1) 1st digit 1st digit = 0: Overtorque is not detected.
  • Page 77 Operation Mode Selection 5 Sn-08 (1) 1st digit (option/inverter change) Specify whether option card or inverter frequency reference is used for operation. 1st digit = 0: Option card frequency reference is accepted. 1st digit = 1: Frequency reference from inverter control circuit terminals or the digital operator is accepted.

  • Page 78: System Constants

    7.3 SYSTEM CONSTANT (Cont’d) Operation Mode Selection 6 Sn-09 (1) 1st digit (selection of analog output) Multi-function analog output signal contents can be set either by the inverter or option card. 1st digit = 0: Output according to Sn-05 4th digit and Sn-09 2nd digit setting contents.

  • Page 79: Protective Characteristic Selection 4

    Protective Characteristic Selection 1 Sn-10 (1) 1st digit (selection of stall prevention during acceleration) 1st digit = 0: Stall prevention during acceleration is enabled. 1st digit = 1: Stall prevention during acceleration is disabled. The function of stall prevention during acceleration automatically extends acceleration according to load status (inverter output current), thus preventing the motor from stalling during acceleration.
  • Page 80 7.3 SYSTEM CONSTANTS (Cont’d) (3) 3rd digit (stall prevention during running) 3rd digit = 0: Stall prevention during running is enabled. 3rd digit = 1: Stall prevention during running is disabled. Stall prevention operation during running starts decelerating when the output current reaches 100ms or greater than the set value of Cn-30 during frequency coincidence (operation level of stall prevention during running).

  • Page 81: Protective Characteristic Selection 5

    Protective Characteristic Selection 2 Sn-11 (1) 1st digit (existence of braking resistor) 1st digit = 0: Braking resistor protection not provided (braking resistor is not protected from overheating). 1st digit = 1: Braking resistor protection provided (braking resistor is protected from overheating).
  • Page 82 7.3 SYSTEM CONSTANTS (Cont’d) (2) 2nd digit (fault contact signal during auto reset/restart operation) 2nd digit = 0: A fault contact signal is not output during auto reset/restart operation. 2nd digit = 1: A fault contact signal is output during auto reset/restart operation. (3) 3rd digit (operation continued at momentary power loss) 3rd digit = 0: When momentary power loss is detected, undervoltage fault ( occurs and the inverter output is shut OFF.
  • Page 83 Protective Characteristic Selection 5 Sn-14 (1) 1st digit (motor protection) 1st digit = 0: Electronic thermal motor protection is enabled. 1st digit = 1: Electronic thermal motor protection is disabled. (2) 2nd digit (selection of electronic thermal characteristics) 2nd digit = 0: Electronic thermal characteristics are in accordance with reduced torque motor (standard motor).

  • Page 84: Multi-Function Contact Input Selection

    7.4 MULTI - FUNCTION CONTACT INPUT SELECTION Sn-15 to -18 Select the set values shown below for Sn-15 to -18. Terminal No. Terminal 5 Terminal 6 Terminal 7 Terminal 8 Function Description Value 3-wire sequence mode (00 Open: FWD run, set in Sn-15) terminal 1-run , FWD / REV RUN selection Closed: REV run,...
  • Page 85 Function Description Value UP command Closed: Output frequency increment DOWN command Closed: Output frequency decrement Closed: Forward log run FJOG command FWD LED lights. Display: 6Hz Closed: Reverse jog run RJOG command Digital operator REV LED does not light. Display: 6Hz 14 to Not used —...
  • Page 86 Sn-15 to -18 (1) FWD/REV run selection (set value = 0) When 0 is set in Sn-15, the mode becomes 3-wire sequence mode. STOP GA7200 RUN COMMAND (RUNS WHEN "CLOSED") STOP COMMAND (STOPS WHEN "OPEN") FWD/REV RUN SELECT "OPEN": FWD RUN "CLOSED": REV RUN...
  • Page 87 ¡ ³ : Closed ×: Open ¡ Ð : No relation Multi-Step Reference Frequency Frequency Reference Reference Selection × × × × Master speed frequency reference* ¡ ³ × × × Auxiliary analog reference ¡ ³ × × × Frequency reference 3 (An-03) ¡...
  • Page 88 7.4 MULTI-FUNCTION CONTACT INPUT SELECTION (Cont’d) Sn-15 to -18 (7) External baseblock (set value =9) Baseblock is performed when "open". All other operations are the same as when set value = 8. (8) Accel/decel speed prohibit command (set value = A) As long as accel/decel speed prohibit command is input, accel/decel speed is prohibited and the output frequency at that time is held.
  • Page 89 (11) UP command/DOWN command (set value = 10, 11) Acceleration/deceleration is performed by inputting the UP/DOWN commands without changing frequency reference in the forward (reverse) run command input status and operation can be performed at a desired speed. Set value = 10: UP command Set value = 11: DOWN command UP command Closed...
  • Page 90 7.4 MULTI-FUNCTION CONTACT INPUT SELECTION (Cont’d) Sn-15 to -18 Notes: 1. When the UP/DOWN commands are used, set Sn-04 1st digit (frequency reference selection) as shown below. Set 1st digit = 0 without fail. Setting 1st digit = 1 disables the UP/DOWN commands. 2.
  • Page 91 (13) External faults 1 to 4 (set values = 2X, 3X, 4X, 5X: X is O to F) When external faults 1 to 4 are input, is displayed on the digital operator, and the inverter operates according to combinations of four bits shown in the table below.
  • Page 92 7.4 MULTI-FUNCTION CONTACT INPUT SELECTION (Cont’d) Sn-15 to -18 <Example> External faults 1 to 4 are set to multi-function terminals 1 to 4. (Nos. of terminal 5 to 8) Display on Digital Operator Multi-function No. of Fault Terminal (Major Fault) (Minor Fault) External Fault 1 Terminal 5...
  • Page 93 (2) Search command (set value = 61,62) To start the motor during coasting when commercial power supply/inverter changing operation is performed, the motor can be operated without tripping by using the speed search function. Set value = 61: Speed search starts with the maximum frequency. Set value = 62: Speed search starts with the frequency reference value when search command is input.
  • Page 94 7.4 MULTI-FUNCTION CONTACT INPUT SELECTION (Cont’d) Sn-15 to -18 2. Determine a sequence so that FWD/REV run command enters at the same time or later than search command. RELAY SEARCH COMMAND <Example of RELAY RELAY FWD/REV RUN COMMAND 3. More than two search commands for set values of 61 and 62 cannot be set. (12) Energy-saving operation command (set value = 63) When energy-saving operation command is input, output voltage is reduced only...

  • Page 95: Multi-Function Analog Input Selection

    7.5 MULTI-FUNCTION ANALOG INPUT SELECTION Sn-19 Select the set values shown below for Sn-19. Set value Function Remarks AUX frequency reference* Used for MASTER/AUX frequency reference selection. Frequency reference gain (F GAIN) Total gain: Internal gain (bn-05) x F GAIN Frequency reference bias 1 (F BIAS 1) Total bias: Internal bias (bn-06) + F BIAS 1 Frequency reference bias 2 (F BIAS 2)
  • Page 96 7.5 MULTI-FUNCTION ANALOG INPUT SELECTION (Cont’d) Sn-19 Multi-function Analog Input Characteristics (1) Sn-19 = 0 (2) Sn-19 = 1 100% 2.00 FREQUENCY 1.00 F GAIN REF. MULTI-FUNCTION MULTI-FUNCTION ANALOG INPUT ANALOG INPUT (3) Sn-19 = 2 (4) Sn-19 = 3 F BIAS 1 F BIAS 2 -10%...

  • Page 97: Multi-Function Contact Output Selection

    7.6 MULTI-FUNCTION CONTACT OUTPUT SELECTION Sn-20 to -22 Select the set values shown below for Sn-20 to -22. Contact output for 0.1 sec. while detecting signal. Terminal No. Control circuit terminal 9, 10 (Contact output) Control circuit terminal 25, 27 (Open collector output) Control circuit terminal 26, 27 (Open collector output) Description Value...
  • Page 98 7.6 MULTI-FUNCTION CONTACT OUTPUT SELECTION Sn-20 to -22 (Cont'd) (1) Operation (set value = 0) The operation contact is "closed" when FWD or REV run command is input, or the inverter outputs voltage. (2) Zero-speed (set value = 1) The zero-speed contact is "closed" when inverter output frequency is less than the minimum output frequency.
  • Page 99 (5) Frequency detection (set value = 4) This contact is "closed" when output frequency is equal to or less than Cn-21, as shown in the figure below. Cn-2 Cn-2 OUTPUT CLOSE FREQUENCY DETECTION Output frequency ¡ Ø Cn-21 Cn-21: Agreed frequency point. Cn-22: Agreed frequency detection width.
  • Page 100 7.6 MULTI-FUNCTION CONTACT OUTPUT SELECTION Sn-20 to -22 (Cont'd) (11) Control command (set value = A) This contact is "closed" when the control command from the keyboard is selected. (12) Overtorque detection (set value = B) This contact remains "closed" as long as the inverter is detecting overtorque. Set overtorque detection level in Cn-26 and set overtorque detection time in Cn-27.

  • Page 101: Control Constants

    7.7 CONTROL CONSTANTS Factory Function Data Name Set Range Unit Setting 150 - 220.0 Input voltage 0.1V 255.0* Max. output frequency 0.1Hz 50.0 - 400.0 60.0 0.1 - 255.0 220.0 Max. voltage 0.1V Max. voltage frequency 0.1Hz 0.1 - 400.0 60.0 V/f Patten Setting...
  • Page 102 Change Agreed frequency 0.1Hz 0.0 - 400.0 Agreed Speed Agreed frequency detection Detection 0.1Hz 0.1 - 25.5 width ¢ w 102¢ w...
  • Page 103 7.7 CONTROL CONSTANTS Factory Function Data Name Set Range Unit Setting Carrier frequency upper limit 0.1kHz 0.4 - 15.0* 15.0 * Carrier Frequency Carrier frequency lower limit 0.1kHz 0.4 - 15.0* 15.0 * Adjustment Carrier frequency proportion 0 - 99 gain Overtorque detection level 30 - 200...
  • Page 104 *1 For 230V class. ×2 for 460V class. *2 For 230V class. ×2 for 460V class. *3 Setting range becomes 10 to 200% of inverter rated current. *4 Factory settings differ depending on inverter capacity. (Sn-01 set value). This example shows combination of (1HP 0.75kW) and TECO standard motor 220v 60Hz 1HP 0.75kW.
  • Page 105 (1) Input voltage (Cn-01) Set inverter input voltage. (in units of 0.1V). (2) V/f constant (Cn-02 to Cn-08) Set inverter output frequency/voltage characteristics. (V/f characteristics). (a) Changing V/f characteristics Sn-02 = 0 to E: V/f characteristics determined by set value. Settings of Cn-02 to Cn-08 cannot be changed.
  • Page 106 7.7 CONTROL CONSTANTS (Cont’d) Notes: 1. The maximum output voltage is limited by input voltage. 2. When the set values of Cn-02 to Cn-08 do not satisfy the following conditions, a setting error occurs and is displayed. The set value is checked at power ON and switching from PRGM mode to DRIVE mode.
  • Page 107 (3) Motor rated current (Cn-09) Set motor rated current by the electronic thermal function in units of 0.1A for motor overload protection. The range of setting is 10% to 200% of inverter rated current. When the 1st digit of Sn-14 is 1, the electronic thermal function is disabled and the motor is not protected from overheating due to overload.
  • Page 108 7.7 CONTROL CONSTANTS (Cont’d) (9) Frequency reference lower limit (Cn-15) Set the lower limit of frequency reference in units of 1%. Cn-02 (maximum frequency) is regarded as 100%. When the run command is input with a frequency reference of 0, acceleration continues from the minimum frequency to the lower frequency reference limit, and operation continues in the lower frequency reference limit.
  • Page 109 (11) Setting prohibit (skip) frequency range (Cn-19) Set the range of setting prohibit (skip) frequency in units of 0.1Hz. The range of the setting prohibit (skip) frequency is determined a follows, depending on combinations with Cn-16 to Cn-18. Cn-16 to Cn-18 -Cn-19 ¡ Õ the range of the setting prohibit frequency ¡...
  • Page 110 7.7 CONTROL CONSTANTS (Cont’d) (12) Operator display mode (Cn-20) The setting unit of frequency references 1 to 8 and jog frequency reference depends on the set value of operator display mode (Cn-20) as follows: Cn-20 Setting / Reading Unit Units of 0.01Hz Units of 0.01% Set in the units of r/min (0 to 39999).
  • Page 111 (13) Agreed frequency (Cn-21) Set an agreed frequency point in units of 0.1Hz. (14) Agreed frequency detection width (Cn-22) Set an agreed frequency detection width in units of 0.1Hz. The relationship with the multi-function contact outputs are shown in the four figures below [(a) to (d)]. (a) Agreed frequency (set value of multi-function contact output = 2) This is "closed"...
  • Page 112 7.7 CONTROL CONSTANTS (Cont’d) (c) Frequency detection contact (set value of multi-function contact output = 4) This contact is "closed" when output frequency is equal to or less than Cn-21, as shown in the figure below. Cn-2 Cn-2 OUTPUT CLOSE FREQUENCY DETECTION Output frequency ¡...
  • Page 113 (15) Carrier frequency upper/lower limit, proportion gain (Cn-23 to Cn-25) The relationship between output frequency and carrier frequency is determined as follows from the set values of Cn-23 to Cn-25. (a) For constant carrier frequency (set value of Cn-23): Set 0 in Cn-25 and set the same value in Cn-23 and Cn-24. (b) For carrier frequency: Carrier frequency changes according to Cn -23 to Cn-25 set values and output frequency as shown below.
  • Page 114 7.7 CONTROL CONSTANTS (Cont’d) (1) Constant HP (kW) area stall prevention limiter (Cn-29) Set constant HP (kW) area stall prevention level in units of 1%. Inverter rated current is regarded as 100%. The function of stall prevention during acceleration automatically extends acceleration according to load status (inverter output current), thus preventing the motor from stalling during acceleration.
  • Page 115 (2) Stall prevention level during running (Cn-30) Set a proportion as a stall prevention level during running in units of 1%. Inverter rated current is regarded as 100% Stall prevention during running starts deceleration when the output current is greater than the setting value of Cn-30 during agreed frequency for more than 100ms. The inverter decelerates as long as the output current exceeds the setting value of Cn-30 (stall prevention level during running).
  • Page 116 7.7 CONTROL CONSTANTS (Cont’d) (3) Motor no-load current (Cn-34) Set motor no load current in units of 1%. Motor rated current (Cn-09) is regarded as 100%. When the output current of the inverter is larger than motor no-load current (Cn-34), the output frequency of the inverter is compensated. The amount of frequency compensation is determined by the formula below.
  • Page 117 No. of auto reset/restart operation (Cn-36) Set the number of auto reset/restart operation. Setting of zero causes no auto reset/restart operation. Each time one of these faults occur: OC, OV, OL1, OL2, OL3, OH, UV1 (OC, GF, OV, rr or UV1), one is added to the number of auto reset/restart operation, and auto reset/restart operation is performed according to the following procedure.
  • Page 118 (Cont’d) 7.7 CONTROL CONSTANTS (6) Speed search deactivation current level (Cn-38) When inverter output current immediately after power recovery is larger than the set value of Cn-38, speed search operation is started. When inverter output current is smaller than the set value of Cn-38, the frequency is interpreted as a speed synchronization point and acceleration or deceleration is performed again up to a specified frequency.

  • Page 119: Monitor Display

    7.8 MONITOR DISPLAY Items to be monitor displayed differ as follows, according to Un-xx. Monitor Item Display Example Frequency reference 60.0 * Output frequency 60.0 Output current 12.5A Output voltage 200V DC voltage Pn 310 Output power (± display) * 12.5 * Input terminal status Output terminal status...
  • Page 120 OFF (TERMINAL 1 : OPEN) LIT (TERMINAL 2 : CLOSED) OFF (TERMINAL 3 : OPEN) LIT (TERMINAL 4 : CLOSED) OFF (TERMINAL 5 : OPEN) OFF (TERMINAL 6 : OPEN) LIT (TERMINAL 7 : CLOSED) LIT (TERMINAL 8 : CLOSED) ¢...
  • Page 121 7.8 MONITOR DISPLAY (Cont’d) *5 Display of output terminal status (Un-08). Output terminal status is displayed. ¡ Õ Example ¡ Ö Control circuit terminals 9 - 10: closed Control circuit terminals 25 - 27, 26 - 27: open LIT (TERMINALS 9 - 10 : CLOSED) OFF (TERMINALS 25 - 27 : OPEN) OFF (TERMINALS 26 - 27 : OPEN) *6 Display of PROM No.

  • Page 122: Fault Display And Troubleshooting

    8. FAULT DISPLAY AND TROUBLESHOOTING The GA7200 has protection functions and warning self-diagnosis functions. If a fault a occurs, the protection functions operate to shut OFF the inverter output and the motor coasts to stop, at the same time, the fault contact signal (terminal ¡ ³ 1 8 -¡ ³ 2 0 ,¡ ³ 1 9 -¡ ³ 2 0 ) is output.
  • Page 123 The warning and self-diagnosis functions do not operate fault contact output (except OH2 warning function) and returns to the former operation status automatically when the factor is removed. The fault display and troubleshooting are provided as shown in the table below. Error Causes Action to be taken Inverter capacity is too small.
  • Page 124 B.) Warning and Self-Diagnosis Functions Fault Cont. Protective Function Explanation Monitor Display Output Low-voltage protection Monitor display appears if low voltage protection conditions such as a drop in main (UV) main circuit voltage circuit voltage or momentary power loss occur while the inverter output is OFF. operation (Blink) insufficient...
  • Page 125 Error Causes Action to be taken Check the main circuit DC voltage in Un-xx. If the voltage is low, adjust the Input voltage drop input voltage. Check the main circuit DC voltage in Un-xx. If the voltage is high, adjust Input voltage rise the input voltage.

  • Page 126: Ga7200 Terminal Functions

    9. GA7200 TERMINAL FUNCTIONS TYPICAL CONNECTION DIAGRAM [230V class, 10HP (7.5kW) or less] BRAKING RESISTOR UNIT (OPTION) ¡ ³ B1/¡ ³ MCCB L1(R) MOTOR L1(R) T1(U) POWER SUPPLY 3-PHASE L2(S) L2(S) T2(V) 200 TO 230V 50/60Hz GA7200 L3(T) L3(T) T3(W)

  • Page 127: Appendix (Options And Peripherals)

    10. APPENDIX (OPTION PERIPHERAL) 10.1 OPTION CARDS Permits operation or constant setting by command COMMUNICATION INTERFACE CARD from master controller. (SC-C) ¡ Ð Communication method: Synchronous ¡ Ð Communication speed: up to 19.2 KBPS ¡ Ð Interface : RS-232 INVERTER MCCB RS-422 MOTOR...

  • Page 128: Analog Operator

    10.2 ANALOG OPERATOR The GA7200 has two types of operator panels: digital operator (JNEP--12) and analog operator (JNEP--14). The optional analog operator is used for simple applications where no complicated constant settings are necessary. BRAKING RESISTOR UNIT (OPTION) B1/¡ ³...

  • Page 129: Braking Resistor And Braking Unit

    10.3 BRAKING RESISTOR AND BRAKING UNIT • GA7200 230V class 20HP (15kW) or below and 460V class 20HP or below, the braking transistor is built-in as standard, it is only necessary to connect braking resistor to B1/¡ ³ + , B2 terminal.

  • Page 130: Ac Reactor

    AC reactor. • GA7200 230V/460V 20HP (15kW) or smaller have external DC reactor connecting terminals, external connecting optional DC reactor is possible. GA7200 230V/460V 25HP (18.5kW) or larger have built-in DC reactor. Max. Applicable...
  • Page 131 0.06 0340 CONSULT FACTORY ¢ w 131¢ w...

  • Page 132: Noise Filter

    A. INPUT NOISE FILTER There are two types of input noise filters: board type (open chassis) and standard type (enclosed). When EMC filter is installed as indicated, the GA7200 will comply with the EN50081-2 (1994) noise interference suppression directive. Input Noise...
  • Page 133 B. ZERO PHASE NOISE SUPPRESSOR • MODEL : JUNFOC046S------- • CODE NO: 4H000D0250001 • Feature 1. high attenuation, as shown in curve below. 2. simple connection. 3. single type suitable for all series inverter, can be used on inverter's input side or output side. NOISE Attenuation Characteristics (10 turns) 10 1 10 2...
  • Page 134 DISTRIBUTED BY: – 5100 NORTH IH-35 ROUND ROCK, TEXAS 78691 www. tecowestinghouse. com 12/1/2 ¢ w 134¢ w...

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