Mitsubishi Electric FR-E710W-0.1K, Instruction Manual

Page: 187 / 349

187
Misoperation prevention and parameter setting restriction
4
P
ARAM
ETE
R
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4.18.2 Parameter write disable selection (Pr. 77)
(1) Write parameters only during stop (setting "0" initial value)
Parameters can be written only during a stop in the PU operation mode.
The shaded parameters in the parameter list
(page 62) can always be written regardless of the operation mode and
operating status. However, Pr. 72 PWM frequency selection, Pr. 240 Soft-PWM operation selection, and Pr. 275 Stop-on contact
excitation current low-speed multiplying factor can be written when the inverter is running in the PU operation mode, but
cannot be written in the External operation mode.
(2) Inhibit parameter write (setting "1")
(3) Write parameters during operation (setting "2")
Parameters can always be written.
The following prameters cannot be written when the inverter is running if
Pr. 77 = "2". Stop the inverter when changing their
parameter settings.
You can select whether write to various parameters can be performed or not. Use this function to prevent parameter
values from being rewritten by misoperation.
Parameter
Number
Name Initial Value Setting Range Description
77
Parameter write selection
0
0 Write is enabled only during a stop.
1 Parameter can not be written.
2
Parameter write is enabled in any operation
mode regardless of operation status.
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 188)
Pr. 77 can be always set independently of the operation mode and operation status.
.............Specifications differ according to the date assembled. Refer to page 338 to check the SERIAL number.
Parameter write is not enabled.
(Read is enabled.)
Parameter clear and all parameter clear cannot be
performed, either.
The parameters given on the right can be written if Pr. 77 =
"1".
Parameter
Number
Name
22 Stall prevention operation level
75
Reset selection/disconnected PU detection/
PU stop selection
77 Parameter write selection
79 Operation mode selection
160 User group read selection
296 Password lock level
297 Password lock/unlock
Parameters referred to
Pr. 79 Operation mode selection Refer to page 194
Parameter
Number
Name
23
Stall prevention operation level compensation
factor at double speed
40 RUN key rotation direction selection
48 Second stall prevention operation current
60 Energy saving control selection
61 Reference current
66
Stall prevention operation reduction starting
frequency
71 Applied motor
79 Operation mode selection
80 Motor capacity
81 Number of motor poles
82 Motor excitation current
83 Rated motor voltage
84 Rated motor frequency
90 to 94 (Motor constants)
96 Auto tuning setting/status
178 to 184 (input terminal function selection)
190 to 192 (output terminal function selection)
277 Stall prevention operation current switchover
292 Automatic acceleration/deceleration
293 Acceleration/deceleration separate selection
298 Frequency search gain
329
Digital input unit selection
(Parameter for the plug-in option FR-A7AX E kit)
450 Second applied motor
541
Frequency command sign selection (CC-Link)
(Parameter for the plug-in option FR-A7NC E kit)
800 Control method selection
859 Torque current
Parameter
Number
Name