sh030106u.pdf - 第612页

17. APPLICATIO N OF FUNCTIONS 17 - 61 2) Instant aneous po wer fail ure time o f contro l circui t pow er su pply < [Pr . PX2 8 SEMI -F47 func tion - Instantane ous po wer fail ure detec tion t ime] Operation s tatus …

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17. APPLICATION OF FUNCTIONS
17 - 60
1) Instantaneous power failure time of control circuit power supply > [Pr. PX28 SEMI-F47 function -
Instantaneous power failure detection time]
The alarm occurs when the instantaneous power failure time of the control circuit power supply
exceeds [Pr. PX28 SEMI-F47 function - Instantaneous power failure detection time].
MTTR (During tough drive) turns on after the instantaneous power failure is detected.
MBR (Electromagnetic brake interlock) turns off when the alarm occurs.
Bus voltage
Undervoltage level
(Note)
A
LM
(Malfunction)
[Pr. PX28]
Instantaneous power failure time of the control circuit power supply
MTTR
(During tough drive)
MBR
(Electromagnetic
brake interlock)
Base circuit
ON
OFF
ON
OFF
W
NG
(Warning)
ON
OFF
ON
OFF
ON
OFF
Control circuit
power suppl
y
ON (energization)
OFF (power failure)
Note. Refer to table 17.8 for the undervolta
g
e level.
17. APPLICATION OF FUNCTIONS
17 - 61
2) Instantaneous power failure time of control circuit power supply < [Pr. PX28 SEMI-F47 function -
Instantaneous power failure detection time]
Operation status differs depending on how bus voltage decrease.
a) When the bus voltage decreases lower than Undervoltage level within the instantaneous
power failure time of the control circuit power supply
[AL. 10 Undervoltage] occurs when the bus voltage decrease lower than Undervoltage level
regardless of the enabled instantaneous power failure tough drive.
[Pr. PX28]
Instantaneous power failure time of the control circuit power supply
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Bus voltage
Undervoltage level
(Note)
A
LM
(Malfunction)
MTTR
(During tough drive)
MBR
(Electromagnetic
brake interlock)
Base circuit
W
NG
(Warning)
Control circuit
power supply
ON (energization)
OFF (power failure)
Note. Refer to table 17.8 for the undervolta
g
e level.
17. APPLICATION OF FUNCTIONS
17 - 62
b) When the bus voltage does not decrease lower than Undervoltage level within the
instantaneous power failure time of the control circuit power supply
The operation continues without alarming.
Bus voltage
Undervoltage level
(Note)
A
LM
(Malfunction)
MTTR
(During tough drive)
MBR
(Electromagnetic
brake interlock)
Base circuit
W
NG
(Warning)
[Pr. PX28]
Instantaneous power failure time of the
control circuit power supply
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Control circuit
power suppl
y
ON (energization)
OFF (power failure)
Note. Refer to table 17.8 for the undervolta
g
e level.
(8) Compliance with SEMI-F47 standard
POINT
The control circuit power supply of the servo amplifier can be possible to comply
with SEMI-F47 standard. However, a back-up capacitor may be necessary for
instantaneous power failure in the main circuit power supply depending on the
power supply impedance and operating situation.
Use a 3-phase for the input power supply of the servo amplifier. Using a 1-phase
100 V AC/200 V AC for the input power supply will not comply with SEMI-F47
standard.
The external dynamic brake cannot be used for compliance with SEMI-F47
standard. Do not assign DB (Dynamic brake interlock) in [Pr. PD07] to [Pr.
PD09]. Failure to do so will cause the servo amplifier to become servo-off when
an instantaneous power failure occurs.
Be sure to perform actual machine tests and detail checks for power supply
instantaneous power failure of SEMI-F47 standard with your equipment.
The following explains the compliance with "SEMI-F47 semiconductor process equipment voltage sag
immunity test" of MR-J4 series.
This function enables to avoid triggering [AL. 10 Undervoltage] using the electrical energy charged in the
capacitor in case that an instantaneous power failure occurs during operation.