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. [. . . ] You can configure the lower frequency limit to be greater than zero as shown in the graph to the right. The upper Lower limit must not exceed the rating of the A 62 limit motor or capability of the machinery. 0 Settable range Frequency command "A" Function Func. Code Name / SRW Display Description Sets a limit on output frequency less than the maximum frequency (A_04) Range is 0. 5 to 360. 0 Hz 0. 0 . . setting is disabled >0. 1 setting is enabled Sets a limit on output frequency greater than zero Range is 0. 5 to 360. 0 Hz 0. 0 . . setting is disabled >0. 1 setting is enabled Run Mode Edit Defaults ­FE (CE) 0. 0 ­FU (UL) 0. 0 ­FR Units (Jpn) 0. 0 Hz A_61 Frequency upper limit setting Configuring Drive Parameters LIMIT H 000. 0Hz A_62 Frequency lower limit setting LIMIT L 000. 0Hz 0. 0 0. 0 0. 0 Hz L100 Inverter 3­17 Jump Frequencies ­ Some motors or machines exhibit resonances at particular speed(s), which can be destructive for prolonged running at those speeds. The inverter has up to three jump frequencies as shown in the graph. The hysteresis around the jump frequencies causes the inverter output to skip around the sensitive frequency values Output frequency A 67 Jump frequencies A 65 A 64 A 64 Frequency command A 66 A 66 A 68 A 68 Hysteresis values A 63 0 "A" Function Func. Code Name / SRW Display Description Up to 3 output frequencies can be defined for the output to jump past to avoid motor resonances (center frequency) Range is 0. 0 to 360. 0 Hz Defines the distance from the center frequency at which the jump around occurs Range is 0. 0 to 10. 0 Hz Run Mode ­FE Edit (CE) 0. 0 0. 0 0. 0 Defaults Configuring Drive Parameters ­FU (UL) 0. 0 0. 0 0. 0 ­FR Units (Jpn) 0. 0 0. 0 0. 0 Hz A_63, Jump (center) frequency A_65, setting A_67 JUMP F1 000. 0Hz JUMP F2 000. 0Hz JUMP F3 000. 0Hz A_64, Jump (hysteresis) A_66, frequency width setting A_68 JUMP W1 00. 50Hz JUMP W2 00. 50Hz JUMP W3 00. 50Hz 0. 5 0. 5 0. 5 0. 5 0. 5 0. 5 0. 5 0. 5 0. 5 Hz 3­18 "A" Group: Standard Functions PID Control When enabled, the built-in PID loop calculates an ideal inverter output value to cause a loop feedback process variable (PV) to move closer in value to the setpoint (SP). The current frequency command serves as the SP. The PID loop algorithm will read the analog input for the process variable (you specify the current or voltage input) and calculate the output. · A scale factor in A_75 lets you multiply the PV by a factor, converting it into engineering units for the process. · 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. This gives flexibility in the profile shape. 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. [. . . ] 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. Take measures to minimize interference that is frequently coupled in through installation cables. [. . . ]