User manual HITACHI SJ100

[. . . ] Cover HITACHI SJ100 Series Inverter Instruction Manual · Single-phase Input 200V Class · Three-phase Input 200V Class · Three-phase Input 400V Class Manual Number: NB585XF December 2003 After reading this manual, keep it handy for future reference. Hitachi Industrial Equipment Systems Co. , Ltd. SJ100 Inverter i Safety Messages For the best results with the SJ100 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. [. . . ] Constant torque Select from two curves, option codes: 00. . . Constant torque 01 01 00 -- 01 01 00 -- Configuring Drive Parameters WARNING: When parameter B_12, level of electronic thermal setting, is set to device FLA rating (Full Load Ampere nameplate rating), the device provides solid state motor overload protection at 115% of device FLA or equivalent. Parameter B_12, level of electronic thermal setting, is a variable parameter. NOTE: For inverter models 005NFE, 011NFE, and 030HFE, the thermal value is less than the rated amperes (is the same as models 004NFE, 007NFE, and 040HFE respectively). Therefore, be sure to set the electronic thermal overload according to the actual motor driven by the particular inverter. SJ100 Inverter 3­27 Overload Restriction If the inverter's output current exceeds a preset current level you specify during acceleration or constant speed, the overload restriction feature automatically reduces the output frequency to restrict the overload. This feature does not generate an alarm or trip event. You can instruct the inverter to apply overload restriction only during constant speed, thus allowing higher currents for acceleration. Or, you may use the same threshold for both acceleration and constant speed. When the inverter detects an overload, it must decelerate the motor to reduce the current until it is less than the threshold. You can choose the rate of deceleration that the inverter uses to lower the output current. "B" Function Func. Code Name / SRW Display Description Select the operating mode during overload conditions, three options, option codes: ON 00. . . Enabled for acceleration and constant speed 02. . . Enabled for constant speed only Run Mode ­FE Edit (CE) 01 Defaults Motor Current B 22 0 t Output frequency 0 B 23 Restriction area t Configuring Drive Parameters ­FU (UL) 01 ­FR Units (Jpn) 01 -- B_21 Overload restriction operation mode OLOAD MODE B_22 Overload restriction setting Sets the level for overload restriction, between 50% and 150% of the rated current of OLOAD LVL 03. 75A the inverter, setting resolution is 1% of rated current Sets the deceleration rate when inverter detects overload, range is 0. 1 to 30. 0, resolution is 0. 1. Rated current x 1. 25 A B_23 Deceleration rate at overload restriction OLOAD CONST 01. 0 1. 0 1. 0 1. 0 -- 3­28 "B" Group: Fine Tuning Functions Software Lock Mode The software lock function keeps personnel from accidentally changing parameters in the inverter memory. Use B_31 to select from various protection levels. The table below lists all combinations of B_31 option codes and Run the ON/OFF state of the [SFT] input. Each Check or Ex Mode indicates whether the corresponding parameter(s) can be edited. Edit The Standard Parameters column below shows access is permit ted for some lock modes. These refer to the parameter tables throughout this chapter, each of which includes a column titled Run Mode Edit as shown to the right. The marks (Check or Ex ) under the "Run Mode Edit" column title indicate whether access applies to each parameter as defined in the table below. In some lock modes, you can edit only F_01 and the Multi-speed parameter group that includes A_20, A220, A_21­A_35, and A_38 (Jog). However, it does not include A_19, Multi-speed operation selection. The editing access to B_31 itself is unique, and is specified in the right-most two columns below. B_31 Lock Mode [SFT] Intelligent Input OFF ON 01 OFF ON 02 03 (ignored) (ignored) Standard Parameters Stop Run Run mode edit access Run mode edit access F_01 and Multi-Speed Stop & Run Stop B_31 Run Configuring Drive Parameters 00 NOTE: Since the software lock function B_31 is always accessible, this feature is not the same as password protection used in other industrial control devices. SJ100 Inverter 3­29 "B" Function Func. Code Name / SRW Display Description Prevents parameter changes, in four options, option codes: 00. . . [. . . ] 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 SJ100 Inverter C­3 4. Take measures to minimize interference that is frequently coupled in through installation cables. [. . . ]