Mitsubishi MR-JE-10B Instruction Manual page 188

7. SPECIAL ADJUSTMENT FUNCTIONS
(2) Instantaneous power failure time < [Pr. PF25 Instantaneous power failure tough drive - Detection time]
Operation status differs depending on how bus voltage decreases.
(a) When the bus voltage decreases to 200 V DC or lower within the instantaneous power failure time
[AL. 10 Undervoltage] occurs when the bus voltage decreases to the undervoltage level or lower
regardless of the enabled instantaneous power failure tough drive.
Power supply
Bus voltage
Undervoltage level
(200 V DC)
ALM
(Malfunction)
WNG
(Warning)
MTTR
(During tough drive)
MBR
(Electromagnetic
brake interlock)
Base circuit
(b) When the bus voltage does not decrease to 200 V DC or lower within the instantaneous power
failure time
The operation continues without alarming.
Power supply
Bus voltage
Undervoltage level
(200 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
Instantaneous power failure time
ON
OFF
[Pr. PF25]
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
7 - 25
[Pr. PF25]