MITSUBISHI ELECTRIC 700 Series - Manual (Page 41)

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Inverter Parameter Read/Write Method
1.8.2 Writing the inverter parameters
Parameter writing is performed when the parameter number is stored to D9241
(D9243) and parameter writing value to D9242 (D9244), and turns ON the Y29 (Y2B).
When writing is completed, X29 (X2B) turns ON to notify the completion. (The device
number within parentheses is used to write the parameter setting value to EEPROM.)
When writing the calibration parameter (Pr. 902 to Pr. 939), set the following value to
D9234 (D9235) to write each calibration parameter value.
0: Setting value (Frequency/Toruque)
1: Parameter-set analog value
2: Analog value input from terminal
As soon as the inverter parameter write completion (X29 (RAM) or X2B (EEPROM))
turns on, 0 is set to D9150 on normal completion.
If an error occurs during access to the parameters, e.g. if any value outside the setting
range is written or write is performed during inverter operation, the value of parameter
No. + H8000 is set to D9150 as soon as the write completion signal (X29 (RAM) or
X2B (EEPROM)) turns on, resulting in abnormal completion. If abnormal completion
occurs, the parameters are not written. (For example, if an error occurs in the torque
boost, H8000 is written to D9150.)
For whether inverter parameter write can be performed or not, refer to Pr.77 Parameter
write selection .
Device No. Name Command Completion
Data Access Enable
Condition
(Operation mode)
D9241 Parameter number (RAM)
Y29 X29 Always
D9242 Parameter description (RAM)
D9234
Second parameter changing
(RAM)
D9243 Parameter number (EEPROM)
Y2B X2B
PU, NET operation mode
(as in Pr.77)
D9244
Parameter description
(EEPROM)
D9235
Second parameter changing
(EEPROM
POINT
Inverter parameter write must be performed in the PU operation mode or NET
operation mode. (Refer to the inverter instruction manual (applied).)