Chapter 4
Explanation of Functions
4-105
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).
1024
3072
2048
Motor shaft viewed from
the motor load side
Position indicated by Z pulse
Reference point
0
Summary of Contents for SJ700D-004L
Page 16: ...Contents Appendix Appendix A 1 Index Index Index 1 ...
Page 44: ...Chapter 2 Installation and Wiring 2 23 Memo ...
Page 70: ...Chapter 3 Operation 3 25 Memo ...
Page 248: ...Chapter 5 Error Codes 5 11 Memo ...
Page 256: ...Chapter6 Maintenance and Inspection 6 7 Memo ...