Saving A Change To Holding Register (Enter Command); How To Issue Enter Command - Omron MX2 Series User Manual

8-6 Saving a Change to Holding Register
(Enter Command)
The Write to Holding Register (06 hex) or Write to Consecutive Holding Registers (10 hex or 17 hex)
function is used to enable new register data. However, the new data is not stored in the EEPROM of the
inverter and is restored to the previous value when the inverter power supply is shut off.
To store a change to holding registers in the inverter's EEPROM memory, issue the Enter command
according to the following procedure. In addition, after changing a control parameter, you need to recal-
culate the motor parameters. In this case, also use the Enter command to execute recalculation.
8-6-1

How to Issue Enter Command

Use the Write to Holding Register (06 hex) command to write data to the holding register for the Enter
command (0900 hex). Below are the values to be written to the holding register (0900 hex).
Set value
0000
0001
0002 to FFFF
*1. When the motor parameter initialization is executed, the parameters listed below are initialized to the default
data.
The list of parameters that are initialized by the motor parameter initialization
Parameter No.
A003/A203
A004/A204
A044/A244
A082/A282
b112
H002/H202
H003/H203
H004/H204
H005/H205
H020/H220 to
H024/H224
Precautions for Correct Use
• After receiving the Enter command, the inverter returns a response to the host and writes the
value to the EEPROM memory. You can monitor the during data write signal (Coil No. 0049
hex) to check whether the data is written.
• Since the inverter's EEPROM memory has a limit for the number of rewrites (approximately
100,000 times), the inverter life may be shortened if the Enter command is frequently used.
Multi-function Compact Inverter 3G3MX2-V1 User's Manual (I585-E1)
Motor parameter initialization
Set value storage
Motor parameter initialization
Function name
Base Frequency
Maximum Frequency
Control Method
Motor Rated Voltage Selection
Free V/f Frequency 7
Motor parameter selection
Motor Capacity
Motor Pole Number
Speed Response
Various motor parameters
8 Communications Functions
Description
*1
*1
and set value storage
Parameter No.
Various motor parameters
H030/H230 to
H034/H234
(Auto-tuning Data)
PM Motor Parameter
H102
Selection
H103 PM Motor Capacity
H104 PM Motor Pole Number
H105 PM Motor Rated Current
H106 to H110 Various PM motor parameters
Various PM motor parameters
H111 to H113
(Auto-tuning Data)
H116 PM Motor Speed Response
Function name
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