C.7 Enter Command
When writing parameters to the drive from the PLC using MEMOBUS/Modbus communication, the parameters are temporarily stored in the parameter
data area of the drive. To enable these parameters in the parameter data area, the Enter command must be used.
There are two types of Enter commands: Enter commands that enable parameter data in RAM only (changes are lost when the drive is shut off), and Enter
commands that write data into the EEPROM (non-volatile memory) of the drive and enable the data in RAM at the same time.
The following table shows the Enter command data. The Enter command is enabled by writing 0 to register number 0900H or 0910H.
Register No. Description
0900H Saves parameter data to EEPROM
0910H Updates parameter data to RAM without saving to EEPROM
Note: Because the EEPROM can be written to a maximum of 100,000 times, refrain from writing to the EEPROM too often. The ENTER command registers are write-only.
Consequently, if these registers are read, then the register address will be invalid (Error code: 02H). An ENTER command is not required if reference or broadcast data are
sent to the drive.
u
ENTER Command Settings when Upgrading the Drive
To transfer parameter settings from an earlier Yaskawa model drive to V1000, parameter H5-11 needs to be set in accordance with how the Enter command
functions in the older drive.
If upgrading from a G7 or F7 series drive to V1000, set parameter H5-11 to 0.
If upgrading from a V7 series drive to V1000, set parameter H5-11 to 1.
No. Name Description Setting Default
Control Mode
Addr. Hex
VF OLV PM
H5-11
Communications ENTER
Function Selection
Select the function for the enter command that saves parameter data to
the drive.
0: Save parameter data that was edited to the drive when the enter
command is given.
1: Parameter data that has been edited is saved when the enter command
is given (compatible with the V7).
0.1 1 A A A 43CH
Note: Option cards are designed for a specific model, and are not compatible between drives.
n
H5-11 and the Enter Command
H5-11 Settings H5-11 = 0 H5-11 = 1
Drive being replaced G7, F7 V7
How parameter settings are enabled When the ENTER key is pressed As soon as the value is changed
Upper/Lower limit check Determined by related parameters Single upper/lower limit
Default value of related parameters Not affected Determines the default values of related parameters
Error when setting multiple parameters Data is accepted even if one setting is invalid Error occurs if one setting is invalid
Operation when saving several parameter settings at once Allows all valid settings to be saved No data is written if a single piece of data is invalid
C.7 Enter Command
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YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
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