
117
Motor brake and stop operation
4
(5) DC feeding mode 1 (
Pr. 30
= "10, 11")
⋅
Setting "10, 11" in
Pr. 30
enables DC power supply operation.
⋅
Leave the AC power supply connection terminal R/L1, S/L2, and T/L3 open and connect the DC power supply to
terminal P/+ and N/-. Also, remove jumpers across terminal R/L1 and R1/L11 as well as S/L2 and S1/L21, and
connect terminals R1/L11 and S1/L21 to terminal P/+ and N/-.
⋅
The diagram below is a connection example.
(6) DC feeding mode 2 (
Pr. 30
= "20, 21, 120 or 121")
⋅
When "20, 21, 120 or 121" is set in
Pr. 30
, operation is performed with AC power supply normally and with DC
power supply such as battery at power failure.
⋅
Connect the AC power supply to terminal R/L1, S/L2, and T/L3 and connect the DC power supply to terminal P/+
and N/-. Also, remove jumpers across terminal R/L1 and R1/L11 as well as S/L2 and S1/L21, and connect
terminals R1/L11 and S1/L21 to terminal P/+ and N/-.
⋅
Turning ON the DC feeding operation permission signal (X70) enables DC power supply operation. Refer to the
table below for I/O signals.
Signal
Name
Description
Parameter Setting
Input
X70
DC feeding
operation
permission signal
When performing operation with DC feeding, turn ON the X70 signal.
When the inverter output is shut off because of power failure, the inverter
can be started in about 150ms after switching OFF the X70 signal then
ON again. (When automatic restart operation is valid, the inverter starts
after additional
Pr. 57
set time has elapsed.)
When the X70 signal turns OFF during inverter operation, output is shutoff
(
Pr .261
= 0) or the inverter is decelerated to a stop (
Pr. 261
≠
0).
Set 70 in any of
Pr. 178
to
Pr. 189
.
X71
DC feeding
cancel signal
Turn this signal ON to stop DC feeding.
When the X71 signal is turned ON during inverter operation with turning
ON the X70 signal, output is shutoff (
Pr. 261
= 0) or the inverter is
decelerated to a stop (
Pr. 261
≠
0), then the X85 signal turns OFF after the
inverter stop.
After turning ON the X71 signal, operation cannot be performed even if
the X70 signal is turned ON.
Set 71 in any of
Pr. 178
to
Pr. 189
.
Output Y85 DC feeding signal
This signal turns ON during power failure or under voltage of AC power.
The signal turns OFF when the X71 signal turns ON or power is restored.
The Y85 signal does not turn OFF during inverter operation even if the
power is restored and turns OFF after an inverter stop.
When the Y85 signal turns ON because of undervoltage, the Y85 signal
does not turn OFF even if undervoltage is eliminated.
ON/OFF status is retained at an inverter reset.
Set "85 (positive
logic) or 185
(negative logic)" in
any of
Pr. 190
to
Pr. 196
R/L1
S/L2
T/L3
U
V
W
P/+
N/-
IM
STF
STR
R1/L11
S1/L21
10
2
2
3
1
5
(+)
(-)
MC
Inrush
current
limit circuit
DC power
Forward rotation start
Reverse rotation start
Contact input common
Frequency command
Frequency setting
potentiometer
1/2W1k
Ω
Earth
(Ground)
Inverter
SD
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