Mitsubishi Electric FR-A700 Series, Technical Manual

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35
1
S
PECIFI
C
A
T
IONS
SPECIFICATIONS
(2) Inverter power ON/OFF timing chart
*1 The inverter output is shut off immediately (between more than 15ms and less than 100ms) after the power is switched OFF.
If more than 100ms has elapsed after the power is switched OFF, the inverter protective circuit is automatically reset by
powering ON again.
*2 Inverter output immediately shuts off if bus voltage of inverter drops to the specified value or lower for more than 10ms after
power OFF.
(3) Inverter instantaneous power failure timing chart
*1 For
,
instantaneous power failure
IPF
activates when the power is restored within 15 to 100ms. Note that
automatic restart after instantaneous power failure is activated and fault output signal is not switched ON when 0 or any of 0.1 to
5s is set in [
Pr. 57
] for the 55K or less and 0 or any of 0.1 to 30s is set for the 75K or more.
When power is restored after inverter output shutoff in , the inverter does not output fault and re-starts from the
starting frequency. However, automatic restart after instantaneous power failure becomes active when the automatic restart
after instantaneous power failure function [
Pr.57 ] is set to "0" or "0.1 to 5s".
*2 An instantaneous power failure of longer than 100ms is identical to a long-time power failure. (Refer to (2) inverter power ON/
OFF timing chart.) If the start signal is ON, the inverter is restarted when the power is restored.
common
[ Pr.13 Start
frequency]
Power supply
R/L1, S/L2, T/L3
Start
STF (STR)
Inverter output shutoff
(Initial reset time)
Approx.1s
ON
t
15ms to 100ms or less *1
The motor is coasted to a
stop
ON
ON
Output
frequency
Approx. 20ms Approx. 20ms Approx. 20ms
A700
D700 E700
F700
More than 10ms *2
common
Start STF (STR)
t
15ms to 100ms or less
ON
ON
ON
ON
ON
[ Pr.13 Start
frequency]
Output
frequency
Coasting
Approx. 20ms
Power supply
R/L1, S/L2, T/L3
Inverter output shutoff
Instantaneous
power failure IPF
*1
Fault output relay
*1
Within 15ms
A700 F700 D700 E700
More than 15ms More than 10ms*
1
A700 F700
D700 E700
Within 10ms
A700 F700
E700 D700