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• 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.
H5-11 Settings
The drive you replaced
Time when the parameter settings are
enabled
Upper and lower limit check
Default setting of related parameters
Fault detection when setting more than one
parameter
■
Self-Diagnostics
The drive is capable of self-diagnosing the operation of the serial communications interface circuit. This function
is called Self-Diagnostics. Self-Diagnostics connects the transmission terminal of the communication part with the
reception terminal and transmits the data that the drive has sent, checking whether the drive is able to
communicate usually.
Follow the procedure below to perform 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 the control circuit terminal S6 to SN.
Figure 5.12 Terminal Connection of the Communication Part when Performing Self-Diagnostics
5.
Energize the drive.
6.
When normal, PASS [Modbus Communication Test] is displayed on the keypad.
When there is an error, CE [Modbus Communication Error] is displayed on the keypad.
7.
De-energize the drive.
8.
Disconnect the wire jumper from terminal S6-SN. Also, set terminal S6 to its original function.
9.
Self-Diagnostics is completed and returns to normal functionality.
■
Communications Data Table
Command Data on page 296, Monitor Data on page 298, and Broadcast Messages on page 313 list the
communications data. The data types are command data, monitor data, and broadcast message.
Refer to the Parameter List for parameters and the corresponding communications registers.
YASKAWA ELECTRIC SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
Table 5.9 Enter Command Function Differences
H5-11 = 0
G7, F7
When the drive receives the Enter command
from the master
Checks the upper and lower limits and
considers the related parameter settings.
Will not change related parameter settings.
You must change the parameters manually.
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.
5 Network Communications
H5-11 = 1
V7
When you change the parameter settings
Checks the upper and lower limit of the
changed parameter only.
Automatically changes the default settings
for the related parameters.
If there is a setting error in a parameter, the
drive responds with a fault. The drive
discards the data that was sent.
295
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