When you use MEMOBUS/Modbus communications to write parameters from the PLC to the drive, H5-11 [Comm ENTER Command Mode] lets you use the Enter command to enable these parameters. This section gives information about the Enter command.

Types of Enter Commands

The drive supports the two Enter commands shown in Table 1.

Write 0 to register number 0900 or 0910 (Hex.) to enable the Enter command. You can only write to these registers. If you read to these registers, it will cause an error.

Table 1. Types of Enter Commands

Register No. (Hex.)

Description

0900

When you write parameter data to the EEPROM, you will enable the data on the RAM at the same time.

This process saves the parameter changes even if you de-energize the drive.

0910

This updates the data on the RAM, but does not write data to the EEPROM.

If you de-energize the drive, you will lose the parameter changes.
Note:

  • You can write the EEPROM to the drive a maximum of 100,000 times. Do not frequently execute the Enter command (0900 (Hex.)) that is written to EEPROM.

  • The Enter command register is write-only. If this register is read, it will cause a Register Number Error (02 (Hex.)).

  • When the command data or broadcast message is transmitted to the drive, the Enter command is not necessary.

Functions of the Enter Command when Replacing a Previous Generation Drive

When you replace a previous generation Yaskawa drive with this product, you must set the Enter command function for this product the same as the previous product. The Enter command function is different for Yaskawa G7, F7-series, and V7-series drives.

Use H5-11 to set the Enter command function:

  • When replacing G7 and F7 series drives, set H5-11 = 0 [ENTER Command Required].

  • When replacing V7 series drives, set H5-11 = 1 [ENTER Command Not Required].

  • When replacing 1000-series drives, set H5-11 to the same value as the drive you replaced.

Table 2. Enter Command Function Differences

H5-11 Settings

H5-11 = 0

H5-11 = 1

The drive you replaced

G7, F7

V7

Time when the parameter settings are enabled

When the drive receives the Enter command from the master

When you change the parameter settings

Upper and lower limit check

Checks the upper and lower limits and considers the related parameter settings.

Checks the upper and lower limit of the changed parameter only.

Default setting of related parameters

Will not change related parameter settings. You must change the parameters manually.

Automatically changes the default settings for the related parameters.

Fault detection when you set more than one parameter

Accepts and responds as usual to correct setting data if the data contains parameter setting errors. The drive discards the disabled setting data, but will not return an error message.

If there is a setting error in a parameter, the drive responds with a fault. The drive discards the data that was sent.