Panasonic MINAS A6 Series, Technical Reference

Page: 238 / 306

Advanced Safety Functions
8-14
8.5.3.3 Activation to STO state, timing diagram
(NOTE 1)
t1 will be a shorter time of either the setup value of Pr4.38 “Mechanical braking setting during operation” or elapsing
time for the motor speed to fall below Pr4.39 “Brake release speed setup.”
(NOTE 2) Dynamic brake operates to the setting
of Pr5.10 “Sequence at alarm.”
(During STO state, “sequence at alarm” will be applied even though no alarm is generated.)
(NOTE 3) When you use redundant safety input to activate STO function, you should turn safety input OFF at the same time.
(NOTE 4) Since servo-lock cannot be performed in the interval after motor energization is cut off until the external brake
operates, the work may fall by gravity from the vertical axis. Take an appropriate measure to prevent this.