Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 614 / 727

(G) Control parameters
PARAMETERS
613
5
GROUP
G
 Power supply specification for DC feeding (Standard models)
NOTE
• The voltage between P and N will temporarily increase to 1057 V or higher during the regenerative 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 feeding with Pr.30 = "10, 11"
(DC feeding), an option fault (E.OPT) will occur.
• When the input voltage is insufficient during inverter operation with Pr.30 = "2, 10, 11, 20, or 21" (DC feeding), the inverter
output will be shut off. (The undervoltage protection function (E.UVT) is not activated.)
• When set to Pr.30 = "10, 11, 20, 21" (DC feeding) and operated by DC feeding, detection of 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 parameters after confirming the function of each terminal.
Parameters referred to
Pr.17 MRS input selection page 418
Pr.57 Restart coasting time page 515
Pr.178 to Pr.189 (Input terminal function selection) page 415
Pr.190 to Pr.196 (Output terminal function selection) page 370
Pr.261 Power failure stop selection page 526
• Operation example at the time of power failure occurrence 3 (when continuing the operation)
Rated input DC voltage 742 VDC to 848 VDC
Permissible fluctuation 667 VDC to 933 VDC
WARNING
 The value set in Pr. 70 must not exceed the setting of the brake resistor used.
It may cause overheating.
Time
ON
Back up operation
Output
frequency
(Hz)
STF(STR)
DC AC
AC
Control power
supply
ON
Power restoration
AC power supply
ON
Y85(MC)
ON
OFF
X70
X71
Remains on while running