Mitsubishi FR-A721-11K Instruction Manual page 118

Parameter
Name
Frequency monitoring
55
reference
Current monitoring
56
reference
Torque monitoring
866
reference
57
Restart coasting time
58
Restart cushion time
Automatic restart after
instantaneous power failure
162
selection
First cushion time for
163
restart
First cushion voltage for
164
restart
Stall prevention operation
165
level for restart
Rotation direction detection
299
selection at restarting
Acceleration time at a
611
restart
59
Remote function selection
Energy saving control
60
selection
Incre Initial
Range
ments Value
Set the full-scale value to output the output frequency
0.01Hz 60Hz 0 to 400Hz
monitor value to terminal FM and AM.
Rated
Set the full-scale value to output the output current
inverter
0.01A 0 to 500A
monitor value to terminal FM and AM.
current
Set the full-scale value to output the torque monitor
0.1% 150% 0 to 400%
value to terminal FM and AM.
The coasting time is as follows:
0 7.5K or lower................................. 1.0s,
11K or higher ................................ 3.0s
0.1s 9999
Set the waiting time for inverter-triggered restart after
0.1 to 5s
an instantaneous power failure.
9999 No restart
0.1s 1s 0 to 60s Set a voltage starting time at restart.
0 With frequency search
1 Without frequency search (Reduced voltage system)
2 Encoder detection frequency
1 0
10 Frequency search at every start
11 Reduced voltage system at every start
12 Encoder detection frequency at every start
0.1s 0s 0 to 20s
Set a voltage starting time at restart.
Consider according to the magnitude of load
(moment of inertia/torque).
0.1% 0% 0 to 100%
Consider the rated inverter current as 100% and set
0.1% 150% 0 to 220% the stall prevention operation level during restart
operation.
0 Without rotation direction detection
1 With rotation direction detection
1 0
When Pr. 78 = "0", the rotation direction is detected.
9999 When Pr. 78 = "1", "2", the rotation direction is not
detected.
Set the acceleration time to reach the Pr. 20
0 to 3600s
Acceleration/deceleration reference frequency at a restart.
0.1s 5s
Acceleration time for restart is the normal
9999
acceleration time (e.g. Pr. 7 ).
RH, RM, RL signal
function
0 Multi-speed setting
1 Remote setting
1 0
2 Remote setting
3 Remote setting
0 Normal operation mode
1 0
4 Energy saving operation mode
Parameter List
Description
Frequency setting
storage function
⎯
Yes
No
No (Turning STF/STR off
clears remotely- set
frequency.)
111
4