Mitsubishi Electric FR-F820-00046 Instruction Manual page 543

Fr-f800 series
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 DC feeding mode 1 (Pr.30 = "10 or 11") (standard models and IP55
compatible models)
• For standard models and IP55 compatible models, setting Pr.30 = "10 or 11" allows operation with a DC power supply.
• Keep the AC power supply connection terminals R/L1, S/L2, and T/L3 open, and connect the DC power supply between
terminals P/+ and N/-. Also, for the standard model, remove the jumpers between terminals R/L1 and R1/L11 and between
terminals S/L2 and S1/L21, and connect the terminals R1/L11 and S1/L21 to the terminals P/+ and N/- respectively.
• The following diagram shows a connection example.
DC power
(+)
(-)
Forward rotation start
Reverse rotation start
Contact input common
3
2
Frequency command
Frequency setting
potentiometer
1
1/2 W 1 kΩ
CAUTION
• Do not connect a separated converter type inverter to a DC power supply. Doing so may damage the inverter.
 DC feeding mode 2 (Pr.30 = "20 or 21") (standard models and IP55
compatible models)
• When Pr.30 = "20 or 21", it will normally operate with AC power supply and operate with DC power supply such as batteries
at the time of power failure.
• Connect the AC power supply to the AC power supply connecting terminals R/L1, S/L2, and T/L3, and connect the DC
power supply to the terminals P/+ and N/-. Also, for the standard model, remove the jumpers between terminals R/L1 and
R1/L11 and between terminals S/L2 and S1/L21, and connect the terminals R1/L11 and S1/L21 to the terminals P/+ and
N/- respectively.
• Operation with DC current is possible by turning ON the DC feeding operation permission (X70) signal. For details on the
I/O signals, refer to following table.
542
5. PARAMETERS
5.13 (G) Control parameters
Inverter
Inrush
R/L1
current
limit circuit
S/L2
T/L3
R1/L11
MC
S1/L21
P/+
N/-
STF
STR
SD
10
2
5
U
V
IM
W
Earth
(Ground)

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