Parameter Write Selection - Mitsubishi Electric 800 Series Instruction Manual

7.7

Parameter write selection

Whether to enable the parameter write or not can be selected. Use this function to prevent parameter values from being
rewritten by misoperation.
Pr. Name
77
Parameter write selection
E400
• Pr.77 can be set at any time regardless of the operation mode or operation status. (Setting through communication is
unavailable.)
 Parameter write enabled only during stop (Pr.77 = "0" (initial value))
• Parameters can be written only during a stop in the PU operation mode.
• The following parameters can always be written regardless of the operation mode or operation status.
Pr.
(Multi-speed setting high-speed, middle-speed,
4 to 6
low-speed)
22 Stall prevention operation level
24 to 27 (Multi-speed setting speed 4 to speed 7)
52 Operation panel main monitor selection
54 FM terminal function selection
55 Frequency monitoring reference
56 Current monitoring reference
*1
PWM frequency selection
72
Reset selection/Disconnected PU detection/PU
75
stop selection
77 Parameter write selection
*2
Operation mode selection
79
129 PID proportional band
130 PID integral time
133 PID action set point
134 PID differential time
158 AM terminal function selection
160 User group read selection
232 to 239 (Multi-speed setting speed 8 to speed 15)
*1
Soft-PWM operation selection
240
241 Analog input display unit switchover
268 Monitor decimal digits selection
Stop-on contact excitation current low-speed
*1
275
scaling factor
290 Monitor negative output selection
295 Frequency change increment amount setting
296, 297 (Password setting)
306 Analog output signal selection
310 Analog meter voltage output selection
*2
Communication startup mode selection
340
416, 417 (PLC)
442 to 445 (Ethernet communication)
496, 497 (Remote output)
498 PLC function flash memory clear
*1 Writing during operation is enabled in PU operation mode, but disabled in External operation mode.
*2 Writing during operation is disabled. To change the parameter setting value, stop the operation.
Initial value Setting range
0
1
0
2
Name
Parameter write is enabled only during stop.
Parameter writing is disabled.
Parameter writing is enabled in any operation mode
regardless of the operation status.
Pr.
*2
NET mode operation command source selection
550
*2
PU mode operation command source selection
551
555 to 557 (Current average value monitoring)
675 User parameter auto storage function selection
774 to 776 (Operation panel monitor item selection)
805 Torque command value (RAM)
806 Torque command value (RAM, EEPROM)
866 Torque monitoring reference
888, 889 (Free parameter)
891 to 899 (Energy saving monitoring)
C0 (900) FM terminal calibration
C1 (901) AM terminal calibration
Operation panel setting dial push monitor
992
selection
997 Fault initiation
*2
PM parameter initialization
998
*2
Automatic parameter setting
999
1006 Clock (year)
1007 Clock (month, day)
1008 Clock (hour, minute)
1020 Trace operation selection
1124 Station number in inverter-to-inverter link
1125 Number of inverters in inverter-to-inverter link
system
1150 to 1199 (PLC function user parameters)
1399, 1424 to
1432, 1434 to (Ethernet communication)
1457
1480 to 1485 (Load characteristics fault)
7. (E) Environment Setting Parameters
Description
Name
7.7 Parameter write selection
1
2
3
4
5
6
7
8
9
10
135