User manual HITACHI L100

[. . . ] Cover HITACHI L100 Series Inverter Instruction Manual · Single-phase Input 200V Class · Three-phase Input 200V Class · Three-phase Input 400V Class Manual Number: NB576XE December 2003 After reading this manual, keep it handy for future reference. Hitachi Industrial Equipment Systems Co. , Ltd. L100 Inverter i Safety Messages For the best results with the L100 Series inverter, carefully read this manual and all of the warning labels attached to the inverter before installing and operating it, and follow the instructions exactly. Keep this manual handy for quick reference. Definitions and Symbols A safety instruction (message) includes a "Safety Alert Symbol" and a signal word or phrase such as WARNING or CAUTION. Each signal word has the following meaning: HIGH VOLTAGE: This symbol indicates high voltage. It calls your attention to items or operations that could be dangerous to you and other persons operation this equipment. [. . . ] · Proportional, integral, and derivative gains are all adjustable. · See "PID Loop Operation" on page 4­32 for more information. "A" Function Func. Code Name / SRW Display Description Enables PID function, two option codes: 00 . . . PID Disable 01 . . . PID Enable Proportional gain has a range of 0. 2 to 5. 0 Integral time constant has a range of 0. 0 to 150 seconds Run Mode Edit Defaults ­FE (CE) 00 ­FU (UL) 00 ­FR Units (Jpn) 00 -- A_71 PID Enable PID SW OFF Configuring Drive Parameters A_72 PID proportional gain PID P A_73 PID integral time constant PID I 001. 0s 1. 0 1. 0 1. 0 1. 0 -- 1. 0 1. 0 1. 0 sec. A_74 PID derivative time constant PID D PID CONV 00. 0 01. 00 Derivative time constant has a range of 0. 0 to 100 seconds 0. 0 0. 0 0. 0 sec. A_75 PV scale conversion Process Variable (PV) scale factor (multiplier), range of 0. 01 to 99. 99 Selects source of Process Variable (PV), option codes: 00 . . . [OI] terminal (current in) 01 . . . [O] terminal (voltage in) 1. 00 1. 00 1. 00 -- A_76 PV source setting PID INPT CUR 00 00 00 -- NOTE: The setting A_73 for the integrator is the integrator's time constant Ti, not the gain. When you set A_73 = 0, the integrator is disabled. L100 Inverter 3­19 Automatic Voltage Regulation (AVR) Function The automatic voltage regulation (AVR) feature keeps the inverter output waveform at a relatively constant amplitude during power input fluctuations. This can be useful if the installation is subject to input voltage fluctuations. However, the inverter cannot boost its motor output to a voltage higher than the power input voltage. If you enable this feature, be sure to select the proper voltage class setting for your motor. "A" Function Func. Code Name / SRW Display Description Run Mode Edit Defaults ­FE (CE) 02 ­FU (UL) 00 ­FR Units (Jpn) 02 -- A_81 AVR function select AVR MODE Automatic (output) voltage regulation, selects from three DOFF type of AVR functions, three option codes: 00 . . . AVR enabled 01 . . . AVR disabled 02 . . . AVR enabled except during deceleration A_82 AVR voltage select AVR AC 200V class inverter settings: . . . . . . . 200/220/230/240 230V 400V class inverter settings: . . . . . . . 380/400/415/440/460 230/ 400 230/ 460 200/ 400 V Configuring Drive Parameters 3­20 "A" Group: Standard Functions Second Acceleration and Deceleration Functions The L100 inverter features two-stage acceleration and deceleration ramps. You can specify the frequency transition point, the point at which the standard acceleration (F_02) or deceleration (F_03) changes to the second acceleration (A_92) or deceleration (A_93). Select a transition frequency method via A_94 as depicted below. A_94 = 00 Transition via 2CH input Output frequency Accel 2 Accel 1 0 2CH input 1 0 t t 0 t A_94 = 01 Transition via freq. level Output frequency A 95 Accel 1 Accel 2 Frequency transition point "A" Function Configuring Drive Parameters Func. Code Name / SRW Display Description Duration of 2nd segment of acceleration, range is: 0. 1 to 3000 sec. Duration of 2nd segment of deceleration, range is: 0. 1 to 3000 sec. Run Mode Edit Defaults ­FE (CE) 15. 0 ­FU (UL) 15. 0 ­FR Units (Jpn) 15. 0 sec. A_92 Acceleration (2) time setting ACC 2 0015. 0s A_93 Deceleration (2) time setting DEC 2 0015. 0s 15. 0 15. 0 15. 0 sec. A_94 Select method to switch Two options for switching to Acc2/Dec2 profile from 1st to 2nd accel/decel: 00 . . . 2CH input from terminal ACC CHG TM 01 . . . transition frequency A_95 Acc1 to Acc2 frequency Output frequency at which transition point Accel1 switches to Accel2, range is 0. 0 to 360. 0 Hz ACC CHFr 000. 0Hz A_96 Dec1 to Dec2 frequency Output frequency at which transition point Decel1 switches to Decel2, range is 0. 0 to 360. 0 Hz DEC CHFr 000. 0Hz 00 00 00 -- 0. 0 0. 0 0. 0 Hz 0. 0 0. 0 0. 0 Hz NOTE: For A_95 and A_96, if you set a very rapid Acc1 or Dec1 time (less than 1. 0 second), the inverter may not be able to change rates to Acc2 or Dec2 before reaching the target frequency. In that case, the inverter decreases the rate of Acc1 or Dec1 in order to achieve the second ramp to the target frequency. L100 Inverter 3­21 Accel/Decel Standard acceleration and deceleration is linear. The inverter CPU can also calculate an S-curve acceleration or deceleration curve as shown. This profile is useful for favoring the load characteristics in particular applications. Curve settings for acceleration and deceleration are independently selected. To enable the S-curve, use function A_97 (acceleration) and A_98 (deceleration). Output frequency Target freq. Code Name / SRW Display Description Set the characteristic curve of Acc1 and Acc2, two options: 00 . . . linear 01 . . . S-curve Set the characteristic curve of Acc1 and Acc2, two options: 00 . . . linear 01 . . . S-curve Run Mode Edit Defaults ­FE (CE) 00 ­FU (UL) 00 ­FR Units (Jpn) 00 -- A_97 Acceleration curve selection ACCEL LINE A_98 Deceleration curve selection DEC LINE L L Configuring Drive Parameters 00 00 00 -- 3­22 "B" Group: Fine Tuning Functions "B" Group: Fine Tuning Functions The "B" Group of functions and parameters adjust some of the more subtle but useful aspects of motor control and system configuration. Automatic Restart Mode The restart mode determines how the inverter will resume operation after a fault causes a trip event. Frequency matching allows the inverter to read the motor speed by virtue of its residual magnetic flux and restart the output at the corresponding frequency. The inverter can attempt a restart a certain number of times depending on the particular trip event: · Over-current trip, restart up to 3 times · Over-voltage trip, restart up to 3 times · Under-voltage trip, restart up to 16 times When the inverter reaches the maximum number of restarts (3 or 16), you must power cycle the inverter to reset its operation. Other parameters specify the allowable under-voltage level and the delay time before restarting. [. . . ] · Some motors have a rubber gasket between terminal box and motor housing. Very often, the terminal boxes, and particularly the threads for the metal PG screw connections, are painted. Make sure there is always a good metallic connection between the shielding of the motor cable, the metal PG screw connection, the terminal box, and the motor housing. If necessary, carefully remove paint between conducting surfaces. Appendix C L100 Inverter C­3 4. [. . . ]