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7.6 Emergency Stop Processing
7-21
Alarm and W
arning Processing
(2) Emergency Stop Processing
When the emergency stop signal turns OFF (emergency stop state), the SERVOPACK performs the following
processing.
• The axes that are in motion (both spindle and feed axes) decelerate to a stop at the torque that is set in
parameter Pn406 (Emergency Stop Torque).
If the servomotor for each axis is not stopped within 10 seconds after the emergency stop signal turns OFF
(emergency stop state), an Emergency Stop Operation Failure Alarm (A.6B0) will occur.
• The axes are base-blocked after they stop.
• Confirm that SVCMD_IO.ESTP2 changes from 0 to 1 for each SERVOPACK.
• Use the SMON (30 hex) command for all axes.
(3) Processing to Turn OFF the Main Circuit
When the emergency stop signal turns OFF (emergency stop state), the power regeneration converter performs
the following processing.
• When the emergency stop signal turns OFF, turn OFF the main circuit magnetic contactor (controlled by the
2KM:SVM signal) from parameter Pn631.
• The host controller displays that an emergency stop was performed.
Note: Do not turn OFF the main circuit magnetic contactor (2KM) during motor deceleration. If the main circuit magnetic
contactor (2KM) is turned OFF during axis deceleration, an Undervoltage Alarm (A.410) may occur.
(4) Recovering after an Emergency Stop
Confirm that all axes have stopped and that SVCMD_IO.M_RDY (bit 12) is 1 for all axes.
When the emergency stop signal turns ON (emergency stop state released), perform the following processing.
• Check that SVCMD_IO.ESTP2 changes from 1 to 0 to confirm that the emergency stop signal turns ON
(emergency stop release) for the SERVOPACK for each axis.
• From the host controller, set SVCMD_IO.MC-ON (bit 23) to 1 to turn ON the main circuit magnetic contac-
tor (controlled by the 2KM:SVM signal).
If multiple SERVOPACKs are connected to the power regeneration converter, the main circuit magnetic
contactor is activated as long as SVCMD_IO.MC-ON is 1 for one or more axes.
• Check that SVCMD_STAT.M_RDY (bit 12) is 1 to confirm that the servomotor is powered and ready.
• Use the SV_ON (31 hex) command to turn ON the servo for the feed axis.
• Use the SMON (30 hex) command to base-block the spindle axis.
• Resume operation of the machine.