7 - 5
7. SPECIAL ADJUSTMENT FUNCTIONS
(2) When an undervoltage occurs during the instantaneous main circuit power failure
An undervoltage al arm (10.2) is generated if the bus
voltage reduces at the undervoltage level or lower.
Main circuit
power supply
Bus voltage
Undervoltage
level (About
160V or less)
Trouble (ALM)
During tough
drive (MTTR)
Electromagnetic
brake interlock
(MBR)
Base circuit
ON
OFF
Instantaneous power failure time
of the main circuit power supply
Ready (RD)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Parameter No. PC28
(3) When the instantaneous main circuit power failure time is longer than the set value of parameter No. PC28
(detailed setting of instantaneous power failure tough drive)
If the instantaneous main circuit power failure time exceeds the set value of parameter No. PC28, main
circuit power supply failure (instantaneous power failure) alarm (10.3) occurs even if the instantaneous
power failure tough drive function is valid.
Summary of Contents for MELSERVO-JN Series
Page 31: ... 22 MEMO ...
Page 49: ...2 6 2 INSTALLATION MEMO ...
Page 181: ...5 30 5 DISPLAY AND OPERATION SECTIONS MEMO ...
Page 199: ...6 18 6 GENERAL GAIN ADJUSTMENT MEMO ...
Page 303: ...11 46 11 OPTIONS AND PERIPHERAL EQUIPMENT MEMO ...
Page 351: ...12 48 12 SERVO MOTOR MEMO ...
Page 445: ...13 94 13 POSITIONING MODE MEMO ...