Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 162 / 608

Parameter overview Parameter
6 - 8
Func-
tion
Parameter
Name
Incre-
ments
Initial
Value
Setting
Range
Description
Para-
meter-
Copy
Para-
meter
Clear
All
Para-
meter
Clear
Refer
to
Page
Rela
te
d
Paramet
ers
✔
: Enabled
—: Disabled
Change of the monit
or
output fr
om t
erminal A
M
55
Frequency monitoring
reference
0.01 Hz 50 Hz 0–400 Hz
Set the full-scale value to output the output
frequency monitor value to terminal AM.
✔ ✔ ✔
6-148
56 Current monitoring reference 0.01
Rated
inverter out-
put current
0–500
Set the full-scale value to output the output
current monitor value to terminal AM.
✔
—
✔
Restar
t oper
ation aft
er instan
taneous po
w
er failur
e
57 Restart coasting time 0.1 s 9999
0
The coasting time is as follows:
FR-E720S-080SCor less,
FR-E740-040SC or less:.................. 1 s,
FR-E720S-110SC,
FR-E740-060SC to 170SC:.............. 2 s,
FR-E740-230SC and 300SC: ........... 3 s
✔ ✔ ✔
6-153
0.1–5 s
Set the waiting time for inverter-triggered
restart after an instantaneous power failure.
9999 No restart
58 Restart cushion time 0.1 s 1s 0–60s Set a voltage starting time at restart.
✔ ✔ ✔
162
Automatic restart after
instantaneous power failure
selection
1 1
0
With frequency
search
When using the
frequency search,
consider the wiring
length limit.
(Refer to page 3-13.)
✔ ✔ ✔
1
Without
frequency search
(Reduced voltage
system)
10
Frequency search
at every start
11
Reduced voltage
system at every
start
165
Stall prevention operation
level for restart
0.1% 150% 0–200%
Consider the rated inverter current as 100%
and set the stall prevention operation level
during restart operation.
✔ ✔ ✔
298
Frequency search gain 1 9999
0–32767
When offline auto tuning is performed
under V/F control, frequency search gain
necessary for frequency search for automatic
restart after instantaneous power failure is
set as well as the motor constants (R1).
✔
—
✔
9999
Uses the Mitsubishi motor (SF-JR, SF-HRCA)
constants
299
Rotation direction detection
selection at restarting
1 9999
0 Without rotation direction detection
✔ ✔ ✔
1 With rotation direction detection
9999
When Pr. 78 = "0", the rotation direction is
detected.
When Pr. 78 = "1", "2", the rotation direction
is not detected.
611
Acceleration time at a restart 0.1 s 9999
0–3600 s
Set the acceleration time to reach the set
frequency at a restart.
✔ ✔ ✔
9999
Acceleration time for restart is the normal
acceleration time (e.g. Pr. 7).
Tab. 6-1: Parameter overview (8)