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

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Chapter 4 Explanation of Functions Note 1: Since the inverter positions the motor shaft within two turns while decelerating the motor, do not specify a high frequency as the home search speed. Otherwise, the inverter may trip during home search because of the overvoltage protection function. Note 2: For setting the home search stop position, the periphery of the motor shaft is divided into 4,096 sections to determine points No. 0 to No. 4095, beginning at the reference point in the direction of forward rotation. (The division into 4,095 sections is irrelevant to the encoder pulse-per-revolution (PPR) setting.) The reference point is specified as the point at which the Z pulse inserted between the EZP pulse and EZN pulse signals is detected. Figure 7-2 shows the layout of the reference point and target stop positions on the periphery of the motor shaft viewed from the load side of the motor shaft (in case of positive-phase connection). Position indicated by Z pulse Reference point 0 Motor shaft viewed from the motor load side 1024 3072 2048 4 - 106
Chapter 4 Explanation of Functions 4.3.12 Absolute position control mode - To use the absolute position control mode function, specify "05" (V2) for V/F characteristic curve selection, 1st motor (A044) and "02" (APR: absolute position control) for the control pulse setting (P012). - If "03" (high-resolution absolute position control) has been specified for the control pulse setting (P012), the quadruple number of pulses used for internal operations is applied to the control. (Then, specify values of quadruple precision for the multistage position settings and position range specification.) - Position settings can be switched in up to eight stages in combination with control pulse settings. - You can select zero-return mode from one low-speed and two high-speed modes.(The home search function described in the preceding section cannot be used.) - The teaching function allows you to specify position settings while actually running the machine. - If function "73" (SPD) is assigned to an intelligent input terminal, you can switch between the speed control and position control modes during operation. - Only the four high-order digits of data are displayed when the data (e.g., position setting) to be displayed consists of a large number of many digits. Related code P012: Control pulse setting P023: Position loop gain setting P060: Multistage position setting 0 P061: Multistage position setting 1 P062: Multistage position setting 2 P063: Multistage position setting 3 P064: Multistage position setting 4 P065: Multistage position setting 5 P066: Multistage position setting 6 P067: Multistage position setting 7 P068: Zero-return mode selection P069: Zero-return direction selection P070: Low-speed zero-return frequency P071: High-speed zero-return frequency P072: Position range specification (forward) P073: Position range specification (reverse) P074: Teaching selection C169: Multistage speed/position determination time C001 to C008: Terminal [1] to terminal [8] functions Item Function code Data/range of data Description Control pulse setting P012 APR2: Absolute position control Position loop gain setting P023 HAPR: High-resolution absolute position control Position range specification Multistage position setting 0 P060 (reverse) to position range specification (forward) Position range specification Multistage position setting 0 P061 (reverse) to position range specification (forward) Position range specification Multistage position setting 0 P062 (reverse) to position range specification (forward) Position range specification Multistage position setting 0 P063 (reverse) to position range specification (forward) Position range specification Multistage position setting 0 P064 (reverse) to position range specification (forward) Position range specification Multistage position setting 0 P065 (reverse) to position range specification (forward) Position range specification Multistage position setting 0 P066 (reverse) to position range specification (forward) Position range specification Multistage position setting 0 P067 (reverse) to position range specification (forward) 00 Zero-return mode selection P068 01 02 Zero-return direction selection P069 00 For forward rotation 01 For reverse rotation Low-speed zero-return frequency P070 0.00 to 10.00 (Hz) High-speed zero-return 0.00 to 99.99 / 100.0 to 400.0 P071 frequency (Hz) Position range specification 0 to +268435456 When APR2 is selected P072 (forward) 0 to +1073741823 When HAPR is selected Position range specification 0 to +268435456 P073 (reverse) 0 to +1073741823 00 Multistage position setting 0 (P060) 01 Multistage position setting 0 (P060) 02 Multistage position setting 0 (P060) Teaching selection P074 03 Multistage position setting 0 (P060) 04 Multistage position setting 0 (P060) 05 Multistage position setting 0 (P060) 06 Multistage position setting 0 (P060) 07 Multistage position setting 0 (P060) 4 - 107
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HITACHI INVERTER SJ700-2 SERIES INS
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Safety Instructions Safety Instruct
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Safety Instructions 3. Operation !
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Safety Instructions Precautions Con
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Safety Instructions Precautions Con
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Safety Instructions 10. Distributio
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Contents Chapter 1 Overview 1.1 Ins
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Contents 4.2.30 Overload restrictio
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Contents 4.3.15 Speed/position swit
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Chapter 1 Overview This chapter des
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Chapter 1 Overview 1.2 Method of In
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Chapter 2 Installation and Wiring T
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Chapter 2 Installation and Wiring 2
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Chapter 2 Installation and Wiring D
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Chapter 2 Installation and Wiring (
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Chapter 3 Operation This chapter de
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Chapter 3 Operation You can operate
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Chapter 3 Operation 3.2.2 Code disp
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Chapter 3 Operation Key operation a
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Chapter 3 Operation (3) Code/data d
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Chapter 3 Operation 3.3 How To Make
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Chapter 3 Operation ELB 3-phase pow
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Chapter 4 Explanation of Functions
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Chapter 5 Error Codes 5.1 Error Cod
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Chapter 5 Error Codes Name Gate arr
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Chapter 5 Error Codes 5.1.2 Option
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Chapter 5 Error Codes 3) Error indi
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Chapter 5 Error Codes 5.1.3 Trip co
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Chapter 6 Maintenance and Inspectio
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Chapter 7 Specifications 7.1 Specif
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Chapter 7 Specifications (3) Common
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Chapter 7 Specifications SJ700-150
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Chapter 7 Specifications SJ700-750
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Chapter 8 List of Data Settings 8.1
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Chapter 8 List of Data Settings 8.4
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Chapter 8 List of Data Settings AVR
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Chapter 8 List of Data Settings Oth
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Chapter 8 List of Data Settings Cod
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Appendix Upgrading from the SJ300 S
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Index A B C a/b....................
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Index O P O........................
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SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.

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