Mitsubishi Electric FR-A800, Instruction Manual

Page: 864 / 1042

(G) Control parameters Parameters
5 - 684
●
Operation example at the time of power failure occurrence 3 (when continuing the operation)
Power supply specification for DC feeding (Standard models and IP55 compatible models)
I001565E
Fig. 5-343: Operation example 3 at power failure (when continuous operation is performed)
200 V class
Rated input DC voltage 283 V DC to 339 V DC
Permissible fluctuation 240 V DC to 373 V DC
400 V class
Rated input DC voltage 537 V DC to 679 V DC
Permissible fluctuation 457 V DC to 740 V DC
Tab. 5-313: 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.
P
WARNING:
The value set in Pr. 70 must not exceed the setting of the brake resistor used.
It may cause overheating.
Control power supply
AC power supply
Y85 (MC)
X70
X71
STF (STR)
Output
frequency [Hz]
Time
AC DC
ON
ON
ON
Back up operation
AC
Power restoration
Remains on while running
ON
OFF