YASKAWA SGD7S-****20A Series Product Manual page 136

5.9 Polarity Sensor Setting . . . . . . . . . . . . . . . 5-24
5.10 Polarity Detection . . . . . . . . . . . . . . . . . . . 5-25
5.10.1 Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-25
5.10.2 Using the SV_ON (Servo ON) Command to
Perform Polarity Detection . . . . . . . . . . . . . . . . .5-26
5.10.3 Using a Tool Function to Perform Polarity
Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-27
5.11 Overtravel and Related Settings . . . . . . . . 5-28
5.11.1 Overtravel Signals . . . . . . . . . . . . . . . . . . . . . . .5-28
5.11.2 Setting to Enable/Disable Overtravel . . . . . . . . .5-29
5.11.3 Motor Stopping Method for Overtravel . . . . . . .5-29
5.11.4 Overtravel Warnings . . . . . . . . . . . . . . . . . . . . . .5-31
5.12 Holding Brake . . . . . . . . . . . . . . . . . . . . . . 5-32
5.12.1 Brake Operating Sequence . . . . . . . . . . . . . . . .5-32
5.12.2 /BK (Brake) Signal . . . . . . . . . . . . . . . . . . . . . . .5-34
5.12.3 Output Timing of /BK (Brake) Signal When
the Servomotor Is Stopped . . . . . . . . . . . . . . . .5-35
5.12.4 Output Timing of /BK (Brake) Signal When
the Servomotor Is Operating . . . . . . . . . . . . . . .5-35
5.13 Motor Stopping Methods for Servo OFF and Alarms . .5-37
5.13.1 Stopping Method for Servo OFF . . . . . . . . . . . .5-38
5.13.2 Servomotor Stopping Method for Alarms . . . . . .5-38
5.14 Motor Overload Detection Level . . . . . . . . 5-40
5.14.1 Detection Timing for Overload Warnings
(A.910) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-40
5.14.2 Detection Timing for Overload Alarms (A.720) . .5-41
5.15 Electronic Gear Settings . . . . . . . . . . . . . . 5-42
5.15.1 Electronic Gear Ratio Settings . . . . . . . . . . . . . .5-43
5.15.2 Electronic Gear Ratio Setting Examples . . . . . . .5-47
5.16 Resetting the Absolute Encoder . . . . . . . . 5-48
5.16.1 Precautions on Resetting . . . . . . . . . . . . . . . . . .5-48
5.16.2 Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . .5-48
5.16.3 Applicable Tools . . . . . . . . . . . . . . . . . . . . . . . . .5-49
5.16.4 Operating Procedure . . . . . . . . . . . . . . . . . . . . .5-49
5.17 Setting the Origin of the Absolute Encoder . . 5-51
5.17.1 Absolute Encoder Origin Offset . . . . . . . . . . . . .5-51
5.17.2 Setting the Origin of the Absolute
Linear Encoder . . . . . . . . . . . . . . . . . . . . . . . . . .5-51
5.18 Setting the Regenerative Resistor Capacity . . . 5-54