YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
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2.10 Enter Command
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2.10 Enter Command
When writing parameters to the drive from the PLC using MEMOBUS/Modbus
communication it depends on the setting of parameter H5-11 if an Enter command must be
used to enable these parameters or not. This sections explains Enter commands.
◆
Enter Command Types
The drive supports two types of Enter commands as shown in the table below. An Enter
command is enabled by writing 0 to register number 0900H or 0910H. These registers can
be written to only. An error will occur if the user attempts to read from these registers.
Table 2.6 Enter Command Types
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.
◆
Enter Command Settings when Upgrading the Drive
When replacing earlier OYMC drive models with V1000 and keeping the MEMOBUS/
Modbus communications settings, parameter H5-11 needs to be set in accordance with how
the Enter command functions in the older drive. H5-11 determines if an Enter command is
needed or not in order to activate parameter changes in the 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.
■
H5-11 and the Enter Command
Register No.
Description
0900H
Writes data into the EEPROM (non-volatile memory) of the drive and enables the data
in RAM at the same time.
Parameter changes remain even if the power supply is cycled.
0910H
Writes data in the RAM only.
Parameter changes are lost when the drive is shut off.
H5-11 Settings
H5-11 = 0
H5-11 = 1
Drive being replaced
G7, F7
V7
How parameter
settings are enabled
When the Enter command is received
from the master.
As soon as the value is changed.
Содержание OYMC V1000
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