Mitsubishi Electric MELSERVO-JE MR-JE-70A Instruction Manual page 218

7. SPECIAL ADJUSTMENT FUNCTIONS
(1) Instantaneous power failure time > [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 exceeds [Pr. PF25 SEMI-F47 function -
Instantaneous power failure detection time (instantaneous power failure tough drive - detection time)].
MTTR (During tough drive) turns on after the instantaneous power failure is detected.
MBR (Electromagnetic brake interlock) turns off when the alarm occurs.
Power supply
Bus voltage
Undervoltage level
(158 V DC)
ALM
(Malfunction)
WNG
(Warning)
MTTR
(During tough drive)
MBR
(Electromagnetic
brake interlock)
Base circuit
Instantaneous power failure time
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
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[Pr. PF25]