Mitsubishi Electric FR-F800 Series Instruction Manual page 468

Pr.
Automatic restart after
162
instantaneous power
A700
failure selection
Rotation direction
299
detection selection at
A701
restarting
57
Restart coasting time
A702
58
Restart cushion time
A703
163 First cushion time for
A704 restart
164 First cushion voltage
A705 for restart
Stall prevention
165
operation level for
A710
restart
611 Acceleration time at a
F003 restart
*1 The same operation is performed for the both settings.
*2 The coasting time when Pr.57 = "0" is as shown below. (When Pr.162 and Pr.570 are set to the initial value.)
FR-F820-00077(1.5K) or lower and FR-F840-00038(1.5K) or lower: 0.5 s
FR-F820-00105(2.2K) to FR-F820-00340(7.5K), FR-F840-00052(2.2K) to FR-F840-00170(7.5K): 1 s
FR-F820-00490(11K) to FR-F820-02330(55K), FR-F840-00250(11K) to FR-F840-01160(55K): 3.0 s
FR-F820-03160(75K) or higher, FR-F840-01800(75K) or higher: 5.0 s
 Automatic restart after instantaneous power failure function
Power
supply
IPF
∗1 10 to 100 ms for IP55 compatible models
• The inverter output is shut off at the activation of the Instantaneous power failure (E.IPF) or Undervoltage (E.UVT). (Refer
to page 603
• When E.IPF or E.UVT is activated, the Instantaneous power failure/undervoltage (IPF) signal is output.
• The IPF signal is assigned to terminal IPF in the initial status. By setting "2 (positive logic) or 102 (negative logic)" in any
parameter from Pr.190 to Pr.196 (Output terminal function selection), the IPF signal can be assigned to another
terminal.
• When the automatic restart after instantaneous power failure function is selected, motor driving is resumed at the power
restoration after an instantaneous power failure or undervoltage. (E.IPF and E.UVT are not activated.)
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Initial value
Name
FM CA
0
9999
9999
1 s
0 s
0%
120% 110%
9999
∗1
15 to 100 ms
ON
OFF
ON
OFF
for E.IPF or E.UVT.)
search engine
Setting
range
*1
0 (2) ,
1000 Frequency search only performed at the first start
*1
(1002)
1, 1001 Reduced voltage start only at the first start (no frequency search)
3, 1003 Frequency search only performed at the first start (reduced impact restart)
*1
,
10 (12)
1010 Frequency search at every start
*1
(1012)
11, 1011 Reduced voltage start at every start (no frequency search)
13, 1013 Frequency search at every start (reduced impact restart)
0 Rotation direction detection disabled
1 Rotation direction detection enabled
When Pr.78 Reverse rotation prevention selection = "0", rotation
direction detection enabled.
9999
When Pr.78 Reverse rotation prevention selection = "1 or 2", rotation
direction detection disabled.
0
Coasting time differs according to the inverter capacity.
Set the waiting time for the inverter to perform a restart after restoring power
0.1 to 30 s
due to an instantaneous power failure.
9999 No restart
0 to 60 s Set the voltage cushion time for restart.
0 to 20 s
Set the voltage cushion time for restart.
Consider this matched to the size of the load amount (moment of inertia/
0% to
torque).
100%
0% to Set the stall prevention level at restart operation on the assumption that the
400% inverter rated current is 100%.
Set the acceleration time to reach Pr.20 Acceleration/deceleration
0 to 3600 s
reference frequency at restart.
Standard acceleration time (for example, Pr.7) is applied as the acceleration
9999
time at restart.
Description
*2
5. PARAMETERS
5.11 (A) Application parameters
1
2
3
4
5
6
7
8
9
10
467