Mitsubishi Electric MELSERVO-J5 User Manual page 209

Ac servo system

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Table of Contents

Timing chart

■When the instantaneous power failure time of the control circuit power supply > [Pr. PF25

SEMI-F47 function - Instantaneous power failure detection time (Instantaneous power failure

tough drive detection time)]

The alarm occurs when the instantaneous power failure time of the control circuit power supply exceeds [Pr. PF25 SEMI-F47

function - Instantaneous power failure detection time (Instantaneous power failure tough drive detection time)]. MTTR turns on

after the instantaneous power failure is detected.

MBR (Electromagnetic brake interlock) turns off when the alarm occurs.

Control circuit

power supply

Undervoltage level

(Malfunction)

(Electromagnetic

brake interlock)

Base circuit

*1 For the undervoltage level, refer to the following table.

Page 210 Behavior

Instantaneous power failure time of control circuit power supply

4 APPLICABLE FUNCTIONS

4.1 Tough drive function