Mitsubishi Electric FR-F820-04750 Instruction Manual page 701

Parameters
● Operation example at the time of power failure occurrence 3 (when continuing the operation)
Fig. 5-262:
Power supply specification for DC feeding (Standard models)
200 V class
400 V class
Tab. 5-283: Power supply specification for DC feeding
NOTES The voltage between P and N will temporarily increase to 415 V (830 V) or higher during the regen-
erative driving, so take caution on the selection of the DC power supply.
When an AC power supply is connected to the R/L1, S/L2, and T/L3 terminals during the DC feed-
ing with Pr. 30 = "2, 10, 11" (DC feeding), an option fault (E.OPT) will occur.
When set to Pr. 30 = "2, 10, 11, 20, 21" (DC feeding) and operated by DC feeding, detection of
undervoltage (E.UVT) and instantaneous power failure (E.IPF) is not performed.
When DC power is switched on, a larger inrush current flows than in AC power. The number of
power-on times should be minimized.
Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) or
Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set parame-
ters after confirming the function of each terminal.
Parameters referred to
Pr. 17
Pr. 57
Pr. 178 to Pr. 189
Pr. 190 to Pr. 196
Pr. 261
FR-F800
Control power supply
AC
ON
AC power supply
Y85 (MC)
ON
X70
OFF
X71
STF (STR)
Output
frequency [Hz]
Operation example 3 at power failure (when continuous operation is performed)
Rated input DC voltage
Permissible fluctuation
Rated input DC voltage
Permissible fluctuation
MRS input selection
Restart coasting time
(input terminal function selection)
(output terminal function selection)
Power failure stop selection
DC
ON
ON
Back up operation
283 V DC to 339 V DC
240 V DC to 373 V DC
537 V DC to 679 V DC
457 V DC to 740 V DC
(G) Control parameters
AC
Power restoration
Remains on while running
Time
I001565E
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