YASKAWA E-7S SERVOPACK SGD7S - Page 150

5.9 Polarity Detection . . . . . . . . . . . . . . . . . . . 5-24
5.9.1 Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24
5.9.2 Using the /S-ON (Servo ON) Signal to Perform
Polarity Detection . . . . . . . . . . . . . . . . . . . . . . .5-25
5.9.3 Using a Tool Function to Perform Polarity
Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26
5.10 Overtravel and Related Settings . . . . . . . . 5-27
5.10.1 Overtravel Signals . . . . . . . . . . . . . . . . . . . . . . .5-27
5.10.2 Overtravel Settings . . . . . . . . . . . . . . . . . . . . . .5-28
5.10.3 Motor Stopping Method When Overtravel is
Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-28
5.10.4 Overtravel Warnings . . . . . . . . . . . . . . . . . . . . . .5-29
5.11 Holding Brake . . . . . . . . . . . . . . . . . . . . . . 5-31
5.11.1 Brake Operating Sequence . . . . . . . . . . . . . . . .5-31
5.11.2 Allocating the /BK (Brake) Signal . . . . . . . . . . . .5-32
5.11.3 Output Timing of /BK (Brake) Signal When the
Servomotor Is Stopped . . . . . . . . . . . . . . . . . . .5-33
5.11.4 Output Timing of /BK (Brake) Signal When the
Servomotor Is Operating . . . . . . . . . . . . . . . . . .5-33
5.12 Motor Stopping Methods for Servo OFF and Alarms . . . 5-35
5.12.1 Stopping Method for Servo OFF . . . . . . . . . . . .5-36
5.12.2 Servomotor Stopping Method for Alarms . . . . . .5-36
5.13 Motor Overload Detection Level . . . . . . . . 5-39
5.13.1 Detection Timing for Overload Warnings
(A.910) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-39
5.13.2 Detection Timing for Overload Alarms (A.720) . .5-40
5.14 Electronic Gear Settings . . . . . . . . . . . . . . 5-41
5.14.1 Electronic Gear Ratio Settings . . . . . . . . . . . . . .5-42
5.14.2 Electronic Gear Ratio Setting Examples . . . . . . .5-45
5.15 Resetting the Absolute Encoder . . . . . . . . 5-47
5.15.1 Precautions on Resetting . . . . . . . . . . . . . . . . . .5-47
5.15.2 Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . .5-47
5.15.3 Applicable Tools . . . . . . . . . . . . . . . . . . . . . . . . .5-48
5.15.4 Operating Procedure . . . . . . . . . . . . . . . . . . . . .5-48
5.16 Setting the Origin of the Absolute Linear Encoder . . 5-50
5.16.1 Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . .5-50
5.16.2 Applicable Tools . . . . . . . . . . . . . . . . . . . . . . . . .5-50
5.16.3 Operating Procedure . . . . . . . . . . . . . . . . . . . . .5-50
5.17 Setting the Regenerative Resistor Capacity . . . 5-53