Mitsubishi Electric FR-A700 Instruction Manual page 194

Parameter overview
Parameter
Func-
Name
tion
57 Restart coasting time
58 Restart cushion time
Automatic restart after
instantaneous power
162
failure selection
First cushion time for
163
restart
First cushion voltage
164
for restart
Stall prevention opera-
165
tion level for restart
Rotation direction
detection selection at
299
restarting
Acceleration time at a
611
restart
Tab. 6-1: Parameter overview (14)
6 - 14
Incre- Initial Setting
ments Value Range
0
0.1s 9999
0,1–5s/
0.1–30s *
9999
0.1s 1s 0–60s
0
1
2
1 0
10
11
12
0.1s 0s 0–20s
0.1% 0% 0–100%
0.1% 150% 0–220%
0
1
1 9999
9999
0–3600s
0.1s 5/15s *
9999
Description
The coasting time is as follows:
00052 or less:...................... 0.5s,
00083–00250: ........................ 1s,
00310–01800: ..................... 3.0s,
02160 or more:..................... 5.0s
Set the waiting time for inverter-
triggered restart after an instanta-
neous power failure.
* The setting depends on the
inverter capacity:
(01800 or less/02160 or more)
No restart
Set a voltage starting time at
restart.
With frequency search
Without frequency search
(Reduced voltage system)
Encoder detection frequency
Frequency search at every start
Reduced voltage system at every
start
Encoder detection frequency at
every start
Set a voltage starting time at
restart.
Consider according to the magni-
tude of load (inertia moment/
torque).
Consider the rated inverter current
as 100% and set the stall preven-
tion operation level during restart
operation.
Without rotation direction detection
With rotation direction detection
When Pr. 78 = "0", the rotation
direction is detected.
When Pr. 78 = "1", "2", the rotation
direction is not detected.
Set the accel-
eration time to
reach the set
* The setting
frequency at a
depends on the
restart.
inverter
capacity:
Acceleration
(01800 or less/
time for
02160 or
restart is the
more)
normal accel-
eration time
(e.g. Pr. 7).
Parameter
All
Para- Para-
para-
meter meter
meter
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