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Speed Loop Gain Speed Loop Gain has a direct effect on the response Bandwidth of Speed Control Loop. Under the condition of no vibration or noise, when higher is the Speed Loop Gain Value is setting speed response is becoming faster. If Cn025 (Load Inertia Ratio) is correctly set then, Speed Loop Bandwidth = Sn211 (Speed Loop Gain1) or Sn213 (Speed Loop Gain2). Load Inertia Ratio Formula is as below: Speed Loop Integration Time Constant Integral element in Speed Control Loop eliminates the steady state error. Under the condition of no vibration or noise, reducing the speed loop Integral Time Constant can enhance system rigidity. If the Load Inertia Ratio is very high or the system has vibration factors, ensure that the Speed Loop Integral Time Constant is also high enough, otherwise the mechanical system would produce resonance easily. Integral Time Constant for Speed Loop can be set using the formula below: 1 Sn212(Integral Time constant 1of Speed Loop) ≥ 5× 2π × Sn211(Speed Loop Gain 1) Setting Example: Assume: Cn025 (Load Inertia Ratio) is correctly set, If target Speed Loop Bandwidth 100Hz, set Sn211(Speed Loop Gain 1)=100(Hz) then 1 Sn212 (Integral Time Constant 1of Speed Loop) ≥ 5× = 40 ( × 0.2msec) 2π × 100 5-55
Position Loop Gain Position Loop Gain has a direct effect on the response speed of Position Loop. Under the condition that there is no vibration or noise from servo motor, increasing the Position Loop Gain Value can enhance the response speed and hence reduce the positioning time. Position Loop Feed-Forward Gain Using Position Loop Feed-Forward Gain can enhance the response speed. If the Feed-Forward Gain value is setting too high, overshooting could occur and cause the INP (In Position) output contact to switch ON and OFF repeatedly. SO monitor Speed Curve and INP (In Position Signal) at the same time then increase Feed-Forward Value slowly. If Position Loop Gain is too high, Feed-Forward function will be insignificant. Quick Parameters for Gain adjustment Quick Gain adjust parameters are available for setting manually. The related Gain Adjust parameters are listed in the Quick-Parameter leaflet for convenient reference. Quick adjust parameters once altered are saved and become effective immediately, without pressing the Enter-Key. The table below shows the Gain Adjust Quick-Parameters. Parameter Name Default Unit Setting Range Control Mode ◆qn401 Speed Loop Gain 1 40 Hz 10~450 Pe/Pi/S ◆qn402 Integral Time Constant 1 of Speed Loop 100 x0.2 msec 1~500 Pe/Pi/S ◆qn403 Speed Loop Gain 2 40 Hz 10~450 Pe/Pi/S ◆qn404 Integral Time Constant 2 of Speed Loop 100 x0.2 msec 1~500 Pe/Pi/S ◆qn405 Position Loop Gain 1 40 1/s 1~450 Pe/Pi ◆qn406 Position Loop Gain 2 40 1/s 1~450 Pe/Pi ◆qn407 Position Loop Feed-Forward Gain Become effective immediately without pressing Enter-Key 0 % 0~100 Pe/Pi 5-56
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■Warning and Alert: Warning • D
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Contents Chapter 1 Checking and Ins
Page 6 and 7:
5-6-7 Selecting the External Regene
Page 8 and 9:
1-1-2 Confirming with Servo Motors
Page 10 and 11:
1-3 A Brief Introduction of Operati
Page 12 and 13:
1-4-2 Direction and Distance Fan Fa
Page 14:
1-5-3 Notice for install motor 1. P
Page 17 and 18:
2-1-2 Wiring for Servo Drives • T
Page 19 and 20:
2-1-4 Motor Terminal Layout A Table
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2-1-5 Typical Wiring for Motor and
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2-1-7 Wiring for Mechanical Brake R
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2-2-1 Output Signals from the Servo
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Explanation of General I/O Signal F
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(b) Digital I/O Signal: For many ki
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Digital Input Function Explanation
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Digital Output Function Explanation
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(c) Pulse Command Input Interface C
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(f) Analog Output Interface Circuit
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(2) Name and Explanation of I/O Sig
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2-3-2 Position Control Mode (Pe Mod
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2-3-4 Speed Control Mode (S Mode) R
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Chapter 3 Panel Operator / Digital
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Once the first parameter in a param
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Step Control Keys LED Display after
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3-2-2 Diagnostic function Following
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dn-03 (Input terminals status) Use
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dn-07 (Auto offset adjustment of ex
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dn-08 Display Motor Standards Cn030
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4-1 Trial Operation Servo motor wit
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Steps for setting JOG function: Ste
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B. Trial run in Speed control mode(
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C. Position control mode trial run
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Chapter 5 Control Functions 5-1 Con
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5-2-1 Analog Torque command Ratio.
Page 74 and 75: 5-2-3 Torque command linear acceler
Page 76 and 77: 5-2-5 Internal Torque Limit In torq
Page 78 and 79: 5-3 Speed Mode Speed Mode is necess
Page 80 and 81: 5-3-2 Analog speed command Ratio An
Page 82 and 83: Parameter Name Default Unit Setting
Page 84 and 85: Setting example: (1) To achieve 95%
Page 86 and 87: 5-3-7 Setting rotation direction Mo
Page 88 and 89: 5-3-9 Notch Filter The function of
Page 90 and 91: 5-3-10 Torque limit of speed contro
Page 92 and 93: (1) PI to P mode switch over by com
Page 94 and 95: (B) Automatic gain 1& 2 switching S
Page 96 and 97: (3) Automatic gain 1&2 switch condi
Page 98 and 99: 5-3-12 Other Functions When the spe
Page 100 and 101: Speed Feed Back Smooth Filter When
Page 102 and 103: Two types of pulse command can be c
Page 104 and 105: For internal positioning mode there
Page 106 and 107: 5-4-3 Electronic Gear Electronic ge
Page 108 and 109: 4.Parameter Setting for Electronic
Page 110 and 111: 5-4-4 Smooth Acceleration Using the
Page 112 and 113: 5-4-7 Clear the Pulse Offset In pos
Page 114 and 115: Parameter Name Setting Description
Page 116 and 117: Home routine Timing Chart During th
Page 118 and 119: (2) Pn365.0=1or 3. After starting t
Page 120 and 121: (5) Pn365.0=2. After Starting HOME
Page 122 and 123: 5-4-9 Other Position Function In po
Page 126 and 127: 5-5-1 Automatic Adjusting This devi
Page 128 and 129: Process for Auto tuning The Diagram
Page 130 and 131: 5-5-3 Improving Resonance The Servo
Page 132 and 133: Parameter Name Description ★Hn502
Page 134 and 135: 5-6-2 Switch for the Control Mode S
Page 136 and 137: Timing for Brake output signal Set
Page 138 and 139: 5-6-7 Selecting for External Regene
Page 140 and 141: Assess for an external resistor and
Page 142 and 143: In such applications, calculate ER
Page 144 and 145: Chapter 6 Parameter 6-1 Explanation
Page 146 and 147: Parameter Name & Function Default U
Page 158 and 159: Parameter Sn213 Sn214 Sn215 Speed l
Page 166 and 167: Parameter Name & Functions Default
Page 168 and 169: Quick Set-up Parameters Parameter N
Page 170 and 171: Parameter Signal ★Hn502 ★Hn503
Page 172 and 173: Parameter Signal Name & Function De
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Diagnosis Parameter Parameter Name
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(2) Read consecutive 2 words from d
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7-1-3 Modbus communication protocol
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ASCII Mode Framing Symbol Name Desc
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06H:Write Single Register Write a w
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10H:Write Multipile Registers Conti
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CRC Checking: CRC check code is fro
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Low-Order Byte Table /* Table of CR
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RS485 RS232 0024 51BH Cn036 Servo I
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Address RS485 RS232 Parameter Name
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Display parameters Address RS485 RS
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Example: Following table are proced
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Alarm Code Alarm Name and Descripti
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Alarm Reset Methods 1. carry out th
Page 204 and 205:
Position Control Mode Command Sourc
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※ Dimension for TSTA-15 and TSTA-
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※ Dimension for TSTA-50 and TSTA-
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TSB 07/08 SERIES SPECIFICATION 1(kg
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TSB 13 SERIES SPECIFICATION 1(kgf.c
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Appendix A: Peripheral for Servo mo
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