Mitsubishi Electric 800 Series Instruction Manual page 169

5.4.9 Parameter write selection
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.
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.)
 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.
Pr.
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 CA terminal function selection
55 Frequency monitoring reference
56 Current monitoring reference
PWM frequency selection
*1
72
75 Reset selection/disconnected PU detection/PU
stop selection
77 Parameter write selection
Operation mode selection
*2
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)
Soft-PWM operation selection
*1
240
241 Analog input display unit switchover
268 Monitor decimal digits selection
290 Monitor negative output selection
296, 297 (Password setting)
306 Analog output signal selection
310 Analog meter voltage output selection
Communication startup mode selection
*2
340
345, 346 (DeviceNet communication)
416, 417 (PLC function)
434, 435 (CC-Link communication)
496, 497 (Remote output)
498 PLC function flash memory clear
*2 NET mode operation command source selection
550
*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.
168
5. PARAMETERS
5.4 (E) Environment setting parameters
Name Initial value
0
Name
Setting range
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.
PU mode operation command source selection
*2
551
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)
866 Torque monitoring reference
888, 889 (Free parameter)
891 to 899 (Energy saving monitor)
900 CA terminal calibration
901 AM terminal calibration
930 Current output bias signal
930 Current output bias current
931 Current output gain signal
931 Current output gain current
990 PU buzzer control
991 PU contrast adjustment
997 Fault initiation
*2 PM parameter initialization
998
Automatic parameter setting
*2
999
1000 Direct setting selection
1006 Clock (year)
1007 Clock (month, day)
1008 Clock (hour, minute)
1019 Analog meter voltage negative output selection
1142 Second PID unit selection
1150 to 1199 (PLC function user parameters)
1211 to 1219 (PID gain tuning)
1460 to 1466 (PID multistage set points 1 to 7)
1480 to 1485 (Load characteristics fault detection)
Description
Name