YASKAWA SGDV-OCA05A

5.9 Polarity Detection . . . . . . . . . . . . . . . . . . . 5-25
5.9.1 Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-25
5.9.2 Using the Servo ON Command to Perform
Polarity Detection . . . . . . . . . . . . . . . . . . . . . . .5-26
5.9.3 Using a Tool Function to Perform Polarity
Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-27
5.10 Overtravel and Related Settings . . . . . . . . 5-28
5.10.1 Overtravel Signals . . . . . . . . . . . . . . . . . . . . . . .5-28
5.10.2 Setting to Enable/Disable Overtravel . . . . . . . . .5-29
5.10.3 Setting Overtravel Signal Polarity . . . . . . . . . . . .5-29
5.10.4 Motor Stopping Method for Overtravel . . . . . . .5-29
5.11 Holding Brake . . . . . . . . . . . . . . . . . . . . . . 5-30
5.11.1 Brake Operating Sequence . . . . . . . . . . . . . . . .5-30
5.11.2 /BK (Brake) Signal . . . . . . . . . . . . . . . . . . . . . . .5-31
5.11.3 Output Timing of /BK (Brake) Signal When the
Servomotor Is Stopped . . . . . . . . . . . . . . . . . . .5-32
5.11.4 Output Timing of /BK (Brake) Signal When the
Servomotor Is Operating . . . . . . . . . . . . . . . . . .5-32
5.12 Motor Stopping Method for Servo OFF and Alarms . . 5-34
5.12.1 Stopping Method for Servo OFF . . . . . . . . . . . .5-35
5.12.2 Servomotor Stopping Method for Alarms . . . . . .5-35
5.13 Motor Overload Detection Level . . . . . . . . 5-38
5.13.1 Detection Timing for Overload Warnings
(A.910) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-38
5.13.2 Detection Timing for Overload Alarms (A.720) . .5-39
5.14 Electronic Gear Settings . . . . . . . . . . . . . . 5-40
5.14.1 Electronic Gear Ratio Settings . . . . . . . . . . . . . .5-41
5.14.2 Electronic Gear Ratio Setting Examples . . . . . . .5-44
5.15 Resetting the Absolute Encoder . . . . . . . . 5-46
5.15.1 Precautions on Resetting . . . . . . . . . . . . . . . . . .5-46
5.15.2 Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . .5-46
5.15.3 Applicable Tools . . . . . . . . . . . . . . . . . . . . . . . . .5-47
5.15.4 Operating Procedure . . . . . . . . . . . . . . . . . . . . .5-47
5.16 Setting the Origin of the Absolute Encoder . . 5-49
5.16.1 Absolute Encoder Origin Offset . . . . . . . . . . . . .5-49
5.16.2 Setting the Origin of the Absolute
Linear Encoder . . . . . . . . . . . . . . . . . . . . . . . . . .5-49
5.17 Setting the Regenerative Resistor Capacity . . . 5-52