Mitsubishi Electric MELSERVO-J5 - Page 209

4 APPLICABLE FUNCTIONS
4.1 Tough drive function
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4
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.
*1 For the undervoltage level, refer to the following table.
Page 210 Behavior
[Pr. PF25]
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Instantaneous power failure time of control circuit power supply
Control circuit
power supply
Bus voltage
Undervoltage level
*1
Base circuit
ALM
(Malfunction)
MTTR
MBR
(Electromagnetic
brake interlock)
WNG
(Warning)