Panasonic MINAS A6 Series, Technical Reference

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Application Functions
6-4
(Note 3) Action of A/B: When an alarm requiring emergency stop occurs, the action A is selected when the setup value in the table is set
within the range 4 to 7, causing emergency stop of operation. When an alarm not requiring emergency stop occurs, it triggers
dynamic braking (DB) specified by action B, or free-running. (Refer to Section "6.3.5 Emergency stop upon occurrence of alarm")
Hold the main circuit power until deceleration stop is completed.
For the alarm requiring emergency stop, refer to Section "7.1 List of protective function".
(Note 4) Deceleration period is the time required for the running motor to speed down to 30 r/min. Once the motor speed drops below 30
r/min, and changes its status after stoppage, it is treated as in stop state regardless of its speed.
(Note 5) Action B is performed when an alarm requiring emergency stop occurs while performing the dynamic braking (DB) operation with
drive inhibition input sequence, sequence at the time of servo OFF or sequence at main power OFF or free-running.
(Note 6) Stopping method is Free run (DB OFF) in dynamic brake non-compatible models.
6.3.5 Emergency stop upon occurrence of alarm
When an alarm requiring emergency stop occurs, the system controls and immediately stops the motor.
Relevant parameters

Relevant parameters
Class No. Attribute Title Range Unit Function
5 10 B Sequence at alarm 0 to 7 - Specify the status during deceleration and after stop, after
occurrence of alarm.
Setting the parameter to one of 4 to 7, enables emergency stop.
5 11 B Torque setup for
emergency stop 0 to 500 % Set up the torque limit at emergency stop.When setup value is 0,
the torque limit for normal operation is applied
5 13 B Over-speed level
setup 0 to
20000 r/min Set up the detection level of Err.26.0 Over-speed protection.If the
motor speed exceeds this setup value, Err26.0 “Over-speed
Protection” occurs.When the setting value is 0, the over-speed level
becomes the over-speed protection level.The internal value is
limited to the over-speed level of applicable motor. (Note 1)
6 14 B Emergency stop
time at alarm 0 to 1000 ms Set up the time allowed to complete emergency stop in an alarm
condition. Exceeding this time puts the system in alarm state.
When setup value is 0, emergency stop is disabled and the
immediate alarm stop is enabled.
6 15 B 2nd over-speed
level setup 0 to
20000 r/min Set up the detection level of Err.26.1 2nd over-speed protection.
If the motor speed exceeds this setup value, Err26.1 “2nd
over-
speed protection” occurs. When the setting value is 0, the
over-speed level becomes the over-speed protection level. The
internal value is limited to the over-speed level of applicable motor.
(Note 1)
(Note 1) Except some motors.
Contents

Emergency stop sequence upon occurrence of the alarm requiring emergency stop.