Mitsubishi Electric 800 Series, Instruction Manual, Page: 252 / 727

(E) Environment setting parameters
PARAMETERS
251
5
GROUP
E
5.7.9
Parameter write selection
• Pr.77 can be set at any time regardless of the operation mode or operation status. (Setting through communication is unavailable.)
 Writing parameters 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.

Writing during operation is enabled in PU operation mode, but disabled in External operation mode.

Writing during operation is disabled. To change the parameter setting value, stop the operation.
Whether to enable the writing to various parameters or not can be selected. Use this function to prevent parameter
values from being rewritten by misoperation.
Pr. Name Initial value Setting range Description
77
E400
Parameter write selection
0
0 Writing is enabled only during stop.
1 Parameter writing is disabled.
2
Parameter writing is enabled in any
operation mode regardless of the operation
status.
Pr. Name
4 to 6
(Multi-speed setting high-speed, middle-
speed, 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
72

PWM frequency selection
75
Reset selection/disconnected PU detection/
PU stop selection
77 Parameter write selection
79

Operation mode selection
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)
240

Soft-PWM operation selection
241 Analog input display unit switchover
268 Monitor decimal digits selection
271 High-speed setting maximum current
272 Middle-speed setting minimum current
273 Current averaging range
274 Current averaging filter time constant
275

Stop-on contact excitation current low-speed
multiplying factor
290 Monitor negative output selection
296, 297 (Password setting)
306 Analog output signal selection
310 Analog meter voltage output selection
340

Communication startup mode selection
345, 346 (DeviceNet communication)
416, 417 (PLC function)
434, 435 (CC-Link communication)
496, 497 (Remote output)
498 PLC function flash memory clear
550

NET mode operation command source
selection
551

PU mode operation command source
selection
555 to 557 (Current average value monitor)
656 to 659 (Analog remote output)
663 Control circuit temperature signal output level
675
User parameter auto storage function
selection
755 to 758 (Second PID control)
759 PID unit selection
774 to 776 (PU/DU monitor selection)
805 Torque command value (RAM)
806 Torque command value (RAM, EEPROM)
838 DA1 terminal function selection
866 Torque monitoring reference
888, 889 (Free parameter)
891 to 899 (Energy saving monitor)
900 FM terminal calibration
901 AM terminal calibration
990 PU buzzer control
991 PU contrast adjustment
997 Fault initiation
998

PM parameter initialization
999

Automatic parameter setting
1000 Direct setting selection
1006 Clock (year)
1007 Clock (month, day)
1008 Clock (hour, minute)
1018 Monitor with sign selection
1019
Analog meter voltage negative output
selection
1142 Second PID unit selection
1150 to 1199 (PLC function user parameters)
1283 Home position return speed
1284 Home position return creep speed
Pr. Name