Mitsubishi Electric MELSERVO-J5 User Manual page 211

• When the bus voltage decreases to the undervoltage level or lower within instantaneous power failure time of control circuit
power supply
[AL. 010 Undervoltage] occurs when the bus voltage decreases to the undervoltage level or lower even if the instantaneous
power failure tough drive is enabled.
ON
Control circuit
OFF
power supply
Bus voltage
*1
Undervoltage level
ON
ALM
(Malfunction)
OFF
ON
WNG
(Warning)
OFF
ON
MTTR
OFF
MBR
ON
(Electromagnetic
OFF
brake interlock)
ON
Base circuit
OFF
*1 For the undervoltage level, refer to the following table.
Page 210 Behavior
Instantaneous power failure time of control circuit power supply
(Energization)
(Power failure)
[Pr. PF25]
4 APPLICABLE FUNCTIONS
4.1 Tough drive function
4
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