Mitsubishi Electric MELSERVO-J4 MR-J4 A Series - Page 237

7. SPECIAL ADJUSTMENT FUNCTIONS
7 - 26
(2) Instantaneous power failure time of the control circuit power supply < [Pr. PF25 Instantaneous power
failure tough drive - Detection time]
Operation status differs depending on how bus voltage decrease.
(a) When the bus voltage decrease lower than 158 V DC within the instantaneous power failure time of
the control circuit power supply
[AL. 10 Undervoltage] occurs when the bus voltage decrease lower than 158 V DC regardless of the
enabled instantaneous power failure tough drive.
೙ᓮ࿁〝㔚Ḯ
Უ✢㔚࿶
⿷㔚࿶࡟ࡌ࡞
(DC158V)
CALM
(౒ㅢ᡿㓚)
[Pr.PF25]
೙ᓮ࿁〝㔚Ḯ⍍஗ᤨ㑆
MTTR
(࠲ࡈ࠼࡜ࠗࡉ)
MBR
(㔚⏛ࡉ࡟࡯ࠠ
ࠗࡦ࠲ࡠ࠶ࠢ)
ࡌ࡯ࠬ࿁〝
ON
OFF
ON
OFF
ON
OFF
WNG
(⼊๔)
ON
OFF
ON
OFF
ON
OFF
Instantaneous power failure time of the control
circuit power supply
Control circuit power
supply
Bus voltage
Undervoltage level
(158 V DC)
WNG
(Warning)
MTTR
(During tough drive)
MBR
(Electromagnetic
brake interlock)
Base circuit
A
LM
(Malfunction)