SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.

More documents

Recommendations

Info

Chapter 4 Explanation of Functions 4.2.92 Offline auto-tuning function The offline auto-tuning function allows you to make the inverter automatically measure and set the motor constants that are required for the sensorless vector control, 0Hz-range sensorless vector control, and vector control with sensor. When using the inverter to perform the sensorless vector control, 0Hz-range sensorless vector control, and vector control with sensor for a motor of which the motor constants are unknown, measure the motor constants with the offline tuning function. When "00" (Hitachi general-purpose motor data) is specified for the motor constant selection (H002/H202), the motor constants of Hitachi's general-purpose motors are set as defaults. When you drive a Hitachi's general-purpose motor with the inverter, you can usually obtain the desired motor characteristics without problems. (If you cannot obtain the desired characteristics, adjust the motor constant settings as described in Section 4.2.92 or 4.2.93.) If you intend to use the online tuning function described later, be sure to perform offline auto-tuning beforehand. The offline auto-tuning function applies only to the 1st motor and 2nd motor controls. Do not apply this function to the 3rd motor control. The motor constant data corresponding to the date of one phase of γ connection at 50 Hz. Item Function code Data or range of data Description 00 Disabling the auto-tuning Auto-tuning Setting H001 01 Enabling the auto-tuning (without motor rotation) 02 Enabling the auto-tuning (with motor rotation) 00 Hitachi general-purpose motor data 01 Automatically tuned data Motor data selection H002/H202 Automatically tuned data (online 02 auto-tuning enabled) Motor capacity H003/H203 0.2 to 75.0 (kW) Note):applied for 75 to 150kW Motor poles setting H004/H204 2, 4, 6, 8, or 10 (poles) Auto constant R1 H030/H230 0.000 to 65.53 (Ω) Auto constant R2 H031/H231 0.000 to 65.53 kgm 2 Auto constant L H032/H232 0.00 to 655.3 (mH) Auto constant Io H033/H233 0.00 to 655.3 (A) Auto constant J H034/H234 0.001 to 9999. (kgm 2 ) Base frequency 30 to maximum frequency setting A003/A203 setting (Hz) DC braking enable A051 00 Disabling DC braking 01 Enabling DC braking AVR voltage select A082 200, 215, 220, 230, or 240 Selectable only for 200 V class models 380, 400, 415, 440, 460, or 480 Selectable only for 400 V class models When using this function, follow the instructions below. 1) Adjust the settings of base frequency (A003) and AVR voltage select (A082) to the motor specifications. When motor voltage is other than the altanatives, set as ”motor voltage (A082) “ * ”outputr voltage gain (A045) “ = “motor rated voltage” 2) This function can properly apply to only the motors in the maximum applicable capacity class of your inverter or one class lower than the capacity class of your inverter. If this function is used for motors with other capacities, correct constant data may not be obtained. (In such cases, the auto-tuning operation may not be completed. If the auto-tuning operation is not completed, press the STOP/RESET key. The operation will end with an error code displayed.) 3) If "01" (enabling) is specified for the DC braking enable (A051), motor constants cannot be measured by offline auto-tuning. Specify "00" (disabling) for the DC braking enable. (The default setting is "00".) 4) If "02" (auto-tuning with motor rotation) is specified for the Auto-tuning Setting (H001), confirm or observe the following: a) No problem occurs when the motor rotates at a speed close to 80% of the base frequency. b) The motor is not driven by any other external power source. 4 - 86 Related code H001: Auto-tuning Setting H002/H202: Motor data selection, 1st motor H003/H203: Motor capacity, 1st motor H004/H204: Motor poles setting, 1st motor H030/H230: Auto constant R1, 1 st /2 nd motor H031/H231: Auto constant R2, 1 st /2 nd motor H032/H232: Auto constant L, 1 st /2 nd motor H033/H233: Auto constant Io, 1 st /2 nd motor H034/H234: Auto constant J, 1 st /2 nd motor A003/A203: Base frequency setting A051: DC braking selection A082: AVR voltage select b046: Reverse run proctection enable
Chapter 4 Explanation of Functions c) All brakes are released. d) During auto-tuning, insufficient torque may cause a problem in the load driven by the motor (for example, a lift may slide down). Therefore, remove the motor from the machine or other load, and perform auto-tuning with the motor alone. (The moment of inertia [J] measured by auto-tuning is that of the motor alone. To apply the data, add the moment of inertia of the load machine to the measured J data after converting the moment of inertia into the motor shaft data.) e) If the motor is installed in a machine (e.g., lift or boring machine) that limits the motor shaft rotation, the allowable rotation limit may be exceeded during auto-tuning, and the machine may be damaged. To avoid this problem, specify "01" (auto-tuning without motor rotation) for the Auto-tuning Setting (H001). f) If the no-load current is unknown, operate the motor at 50 Hz in a V/f characteristic control mode to measure the motor current with current monitor. Then, set the measured current as the control constant "H023" or "H223" before auto-tuning. 5) Even when "01" (auto-tuning without motor rotation) is specified for the Auto-tuning Setting (H001), the motor may rotate slightly during auto-tuning. 6) When performing the auto-tuning for a motor of which the capacity is one class lower than that of the inverter, enable the overload restriction function, and set the overload restriction level to 1.5 times as high as the rated current of the motor. Operating procedure 1) Specify "01" or "02" for the Auto-tuning Setting (H001). 2) Input an operation command. When the operation command is input, the inverter performs an automatic operation in the following steps: (1) First AC excitation (The motor does not rotate.) ↓ (2) Second AC excitation (The motor does not rotate.) ↓ (3) First DC excitation (The motor does not rotate.) ↓ (4) Operation based on V/f characteristic control (The motor rotates at a speed up to 80% of the base frequency.) ↓ (5) Operation based on SLV control (The motor rotates at a speed up to x% of the base frequency.) ↓ (6) Second DC excitation (The motor does not rotate.) ↓ (7) Display of auto-tuning result Note 1: Steps (4) and (5) are skipped when the auto-tuning without motor rotation (H001 = 01) has been selected. Note 2: The motor speed (x) in step (5) is as follows. Assume that "T" is the acceleration or deceleration time in step (4), whichever is largest. When 0s ≤ T < 50 s, x = 40%. When 50 s ≤ T < 100 s, x = 20%. When 100 s ≤ T, x = 10%. Note 3: The tuning result is displayed as follows: Normal end Abnormal end If the auto-tuning has ended abnormally, retry it. (To clear the result display, press the STOP/RESET key.) Note 4: If the inverter trips during the auto-tuning, the auto-tuning is terminated forcibly. (In such cases, the monitor does not display the abnormal-end code, but displays a trip indication code.) In such cases, remove the cause of tripping, and then set H001=01 again to retry the auto-tuning. Note 5: If you cancel the auto-tuning midway with a stop command (by pressing the STOP/RESET key or turning off the operation command), the constants set for auto-tuning may remain in the inverter. Before retrying the auto-tuning, initialize the inverter, and then readjust the settings for the auto-tuning. (Perform the same procedure also when you proceed to the normal inverter operation.) Note 6: If an attempt is made to perform the auto-tuning with a free V/f characteristic selected as the control mode, the inverter will soon terminate the operation with the abnormal-end code displayed. Note 7: Even if the auto-tuning has ended normally, you cannot operate the inverter with the tuning data left. If you intend to operate the inverter with the tuning data left, be sure to switch the setting of motor constant selection (H002) to "01". 4 - 87
Page 1 and 2:
HITACHI INVERTER SJ700-2 SERIES INS
Page 3 and 4:
Safety Instructions Safety Instruct
Page 5 and 6:
Safety Instructions 3. Operation !
Page 7 and 8:
Safety Instructions Precautions Con
Page 9 and 10:
Safety Instructions Precautions Con
Page 11 and 12:
Safety Instructions 10. Distributio
Page 13 and 14:
Contents Chapter 1 Overview 1.1 Ins
Page 15 and 16:
Contents 4.2.30 Overload restrictio
Page 17 and 18:
Contents 4.3.15 Speed/position swit
Page 19:
Chapter 1 Overview This chapter des
Page 22 and 23:
Chapter 1 Overview 1.2 Method of In
Page 24:
Chapter 2 Installation and Wiring T
Page 27 and 28:
Chapter 2 Installation and Wiring 2
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Chapter 2 Installation and Wiring D
Page 35 and 36:
Chapter 2 Installation and Wiring S
Page 37 and 38:
Chapter 2 Installation and Wiring c
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Chapter 2 Installation and Wiring (
Page 45 and 46:
Page 47 and 48:
Chapter 2 Installation and Wiring (
Page 49:
Chapter 3 Operation This chapter de
Page 52 and 53:
Chapter 3 Operation You can operate
Page 54 and 55:
Chapter 3 Operation 3.2.2 Code disp
Page 56 and 57:
Chapter 3 Operation Key operation a
Page 58 and 59:
Chapter 3 Operation (3) Code/data d
Page 60 and 61:
Chapter 3 Operation 3.3 How To Make
Page 62 and 63:
Chapter 3 Operation ELB 3-phase pow
Page 65 and 66:
Chapter 4 Explanation of Functions
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100: Chapter 4 Explanation of Functions
Page 149: Voltage across main circuit termina
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 230 and 231:
Chapter 5 Error Codes 5.1 Error Cod
Page 232 and 233:
Chapter 5 Error Codes Name Gate arr
Page 234 and 235:
Chapter 5 Error Codes 5.1.2 Option
Page 236 and 237:
Chapter 5 Error Codes 3) Error indi
Page 238 and 239:
Chapter 5 Error Codes 5.1.3 Trip co
Page 240:
Chapter 6 Maintenance and Inspectio
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 250 and 251:
Chapter 7 Specifications 7.1 Specif
Page 252 and 253:
Chapter 7 Specifications (3) Common
Page 254 and 255:
Chapter 7 Specifications SJ700-150
Page 256 and 257:
Chapter 7 Specifications SJ700-750
Page 259 and 260:
Chapter 8 List of Data Settings 8.1
Page 261 and 262:
Chapter 8 List of Data Settings 8.4
Page 263 and 264:
Chapter 8 List of Data Settings AVR
Page 265 and 266:
Chapter 8 List of Data Settings Oth
Page 267 and 268:
Chapter 8 List of Data Settings Cod
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
Appendix Upgrading from the SJ300 S
Page 279 and 280:
Index A B C a/b....................
Page 281 and 282:
Index O P O........................
show all

SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.

Create successful ePaper yourself

Delete template?

Save as template?