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Related Manuals for HNC Electric HSD7 Series
Summary of Contents for HNC Electric HSD7 Series
- Page 1 HSD7-ES Full Closed-Loop Control Instruction HNC Electric Limited...
- Page 2 What is a full closed loop system A full closed loop system is a system that uses an encoder (2 encoder) or grating ruler directly installed on the motion mechanism of the equipment to detect the actual position of the motion mechanism and feedback the position information to the servo unit.
- Page 3 1. Start-up steps of the servo unit When starting the servo unit, first confirm whether the action is normal through semi-closed loop control, and then confirm whether the action is normal through full closed loop control. The procedure for starting by full closed loop control is shown below.
- Page 4 • Visually check whether the movement distance of the motion • Detection value of excessive mechanism is roughly the same as deviation between motor and load the number of counts of the "Full position (Pn51B) Closed Loop Feedback Pulse • Positioning completion range Counter"...
- Page 5 2.2 Control diagram of full closed loop control 2.3 Setting of motor rotation direction and machine movement direction Set the rotation direction of the motor and the motion mechanism. When performing full-closed loop control, Pn000=n.□□□X (selection of rotation direction) and Pn002= n.X□□□( Use method of 2nd encoder). Pn002= n.X□□□( Use method of 2nd encoder).
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Page 6: Related Parameters
Related parameters Pn000= n.□□□X .For details, refer to the table above "Setting the direction of motor rotation and motion mechanism". Pn002= n.X□□□ When performing full closed-loop control, set Pn002=n.1□□□ or n.3□□□ Parameter Name Function Effective time n.0□□□ No external encoder is used. [Default] It is used as "the motor rotates in CCW n.1□□□... - Page 7 Related parameters Number of pitches of the grating ruler Position Pn20A Range Unit Default Effective time 4~1048576 1 grating ruler pitch/Rev 32768 Restart 2.5 Encoder frequency division pulse output signal (PAO, PBO, PCO) setting Set the position resolution to Pn281 (encoder output resolution). The setting value should input the value of A and B phase edge.
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Page 8: Troubleshooting
2.6 Un070 2nd encoder current position monitoring The current position of the 2nd encoder can be read through Un070. It supports absolute position counting. Since the panel operator can only display 5 digits, the setting value of 6 digits or more is as follows: The following figure shows that the current position is: -0493853276 3.7 Related alarms Alarm number... - Page 9 3.8 Alarm detection setting The settings of alarm detection (Pn51b, Pn52A) are as follows. Setting of detection value of excessive deviation between motor and load position (Pn51B) It is the setting to detect the difference between the servo motor encoder feedback (motor position) and the fully closed loop 2nd encoder feedback (load position).
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