Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 921 / 1218

Parameters (G) Control parameters
FR-A800 5 - 719
DC feeding mode 1 (Pr. 30 = "10, 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.
●
Do not connect anything 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 terminal R/L1 and R/L11as well as between S/L2 and S1/L21, and connect
the terminals R1/L11 and S1/L21 to the terminals P/+ and N/- respectively.
●
Following is a connection example.
DC feeding mode 2 (Pr. 30 = "20, 21") (Standard models and IP55 compatible models)
●
When Pr. 30 = "20, 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 terminal R/L1 and R/L11as well as between 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 signal
(X70). For details on I/O signal, refer to following table.
I002757E_G
Fig. 5-357: Connection example for DC feeding mode 1
E
CAUTION:
Do not connect a separated converter type inverter to a DC power supply. Doing so may damage
the inverter.
R/L1
S/L2
T/L3 U
V
W
P/+
N/-
STF
STR
PC
R1/L11
S1/L21
10
2
2
3
1
5
(+)
(-)
MC
Inverter
Inrush
current
limit circuit
DC power
Forward rotation start
Reverse rotation start
Contact input common
Frequency command
Frequency setting
potentiometer
1/2W 1 k
Earth
(Ground)
IM