YASKAWA GA700 - Self-Diagnostics; Communications Data Table

Network Communications
5
5.3 MEMOBUS/Modbus Communications
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 303
H5-11 Settings H5-11 = 0 H5-11 = 1
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 setting 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.
◆ Self-Diagnostics
The drive can use Self-Diagnositcs to find the operation of the serial communications interface circuit. Self-
Diagnostics connects the transmission terminal to the reception terminal on the control circuit. It then transmits
the data sent by the drive and makes sure that the drive can communicate correctly.
Use this procedure to do Self-Diagnostics:
1. Energize the drive.
2. Set H1-06 = 67 [Terminal S6 Function Selection = Communications Test Mode].
3. De-energize the drive.
4. Connect a jumper between control circuit terminals S6 and SN.
Figure 5.12 Self-Diagnostics Jumper Terminals
5. Energize the drive.
6. When normal, the keypad will show PASS [MEMOBUS/Modbus Communications Test Mode Normal].
When there is an error, the keypad will show CE [MEMOBUS/Modbus Communications Error].
7. De-energize the drive.
8. Disconnect the wire jumper between terminals S6 and SN. Set terminal S6 to its initial function.
Self-Diagnostics is complete and the drive returns to its usual function.
◆ Communications Data Table
Command Data on page 303, Monitor Data on page 306 and Broadcast Messages on page 321 show the
communications data. The data types are command data, monitor data, and broadcast message.
Refer to the Parameter List for parameter communications registers.
■ Command Data
You can read and write command data.
Note:
Set the reserved bit to 0. Do not write the data in the reserved register or the monitor register.