User manual HITACHI SJ-FB

[. . . ] FOR HITACHI INVERTER SJ-FB (Feed-Back Board) INSTRUCTION HITACHI NB616XB Thank you for purchasing the SJ-FB (HITACHI FEED-BACK BOARD). This manual explains the operation of the feed-back board for use with SAFETY To get best performance with SJ-FB (Feedback Board), read this manual, the SJ300 Instruction Manual, and all of the warning labels attached to the inverter carefully before installation and operation, and follow the instructions exactly. Keep this manual handy for your quick reference. Definitions and Symbols A safety instruction (message) is given with a hazard alert symbol and a signal word - WARNING or CAUTION. Each signal word has the following meaning throughout this manual. It used to call your attention to items or operations that could be dangerous to your and/or other persons operating this equipment. [. . . ] Set the necessary items according to the instruction manual "Chapter 4 FUNCTION EXPLANATION" of the inverter main body. For speed control, operation is started when operation command of the inverter main body is turned on. For position control, turn on the STAT terminal of SJ-FB and operation command of the inverter main body first of all. If the motor doesn't accelerate normally or the inverter trips with overload, check the encoder for phase order. The normal phase order is that the waveform of phase A advances by 90° than that of phase B when the motor rotates forward. (Note 1) : The monitor signal may not be output from FM terminal of inverter main body under vector control with sensor (A044=05). (Note 2) : Please do not do the free run action by "RS terminal" of inverter main body. When you do this action, over current trip, or power element destruction may occur. Please use "FRS" the terminal when performing free run action. (Note 3) : If the torque limit setting (b041-b044) is enlarged, over current trip would occur at the time of the motor added burden. (Note 4) : The motor constant data of the SJ300 series is the data at the time of base frequency 50Hz in the J1 motor made in Hitachi. Please put in the value that did it to motor constant I0 (H023) 0. 7 times, in the case that you use it with base frequency 60Hz in the J1 motor. (Note 5) : Please do the auto tuning, in the case that you do not understand the motor constant. 21 Chapter 6 OPERATION (Note 6) : If satisfactory performance can not be obtained, adjust the motor constants for the particular symptoms observed according to following table: Inverter Status At starting Symptom Observed Shock occurs starting Adjustment Guidelines Parameter(s) to Adjust H024/H034 H005 H024/H034 b022 b041-b044 H024/H034 at Set "Motor constant J" higher gradually, up to 1. 2 times the initially preset (default) value. Instability of motor deceleratio Set "Motor constant J" smaller than the rotation n initially preset value. Insufficient torque Set overload restriction level lower than the During during torque limit torque limit level(s). torque limit at low speed At low Set "Motor constant J" higher than the initial Irregular rotation frequency preset (default) value. operation 22 Chapter 7 FUNCTIONS Relation 7. 1 Orientation function This board is provided with the orientation function used to position the motor at a certain point during operation. This function can be used for replacing a component of the main axis of the subject machine tool for example. A044: 1 st Control Method P014: Orientation Stop Position P015: Orientation Speed setting P016: Orientation Direction setting P017: Completion range setting P018: Completion delay time 7. 1. 1 Function outline The orientation function maintains position which has decided P023: Position loop gain with the position control after speed control operation. The action C001-C008: Intelligent input terminal C021-C025: Intelligent output terminal is shown in Figure 7-1. In the speed control operation period, inverter drives at constant speed with the orientation speed setting (P015). (Orientation mode becomes valid when turning RUN command ON under ORT is being ON. ) 2. After arriving to the orientation speed setting(P015), the first coming the Z pulse is detected after that the control mode moves to the position control. [. . . ] (Please use the thermistor of the characteristic like type B b098: Thermistor selection that shows it below. (This thermistor is the characteristic of b099: Thermistor error level PE-41E made of a Shibaura electronics co. , Ltd. )) C085: Thermistor adjustment 1. Please wire the thermistor that is built to the motor to the inverter. (Wiring between TH and CM1 of the terminal unit board of the main body) 2. [. . . ]