7. SPECIAL ADJUSTMENT FUNCTIONS
7 - 27
(b) When the bus voltage does not decrease lower than 158 V DC within the instantaneous power
failure time of the control circuit power supply
The operation continues without alarming.
Control circuit
power supply
Bus voltage
Undervoltage level
(Note)
LM
(Malfunction)
MTTR
(During tough drive)
MBR
(Electromagnetic
brake interlock)
Base circuit
WNG
(Warning)
[Pr. PF25]
Instantaneous power failure time of the
control circuit power supply
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Note. Refer to table 7.1 for the undervoltage level.
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