YASKAWA GA800 Technical Reference page 862

12.7 F: Options
Operations at the Time of Communication Error
Error
Communication Error
Codes
From controller to
bUS
communication option
From communication
oFAxx
option to master drive
From master drive to
CE
slave drive
Gateway Special Register Specification
Register
No. (Hex.)
Command source update
bit 0 Drive 1 Update Command Enabled
bit 1 Drive 2 Update Command Enabled
15C5
bit 2 Drive 3 Update Command Enabled
bit 3 Drive 4 Update Command Enabled
bit 4 Update Register Access Command Enabled
bit 5 - F Reserved
Run Command (Drive 1)
H5-12 = 0: FWD/Stop
0 = Stop
1 = Forward run
bit 0
H5-12 = 1: Run/Stop
0 = Stop
1 = Run
H5-12 = 0: REV/Stop
0 = Stop
1 = Reverse run
15C6
bit 1
H5-12 = 1: FWD/REV
0 = Forward run
1 = Reverse run
bit 2 External fault
bit 3 Fault Reset
bit 4 ComRef
bit 5 ComCtrl
bit 6 - F Reserved
15C7 Frequency Reference (Drive 1)
15C8 Run Command (Drive 2)
15C9 Frequency Reference (Drive 2)
15CA Run Command (Drive 3)
862
• Master drive
Detects bUS [Option Communication Error] and operates as specified by F6-01 [Communication Error Selection].
• Slave drive
Detects CE [Modbus Communication Error] and operates as specified by H5-04 [Communication Error Stop Method].
Note:
• After error detection, each drive can continue the operation specified by the last received command if the F6-01 and H5-04 settings
agree. Because the controller cannot stop the operation, you must supply a stopping method, for example an emergency stop switch.
• If you set H5-05 = 0 [Comm Fault Detection Selection = Disabled], the drive will not detect CE. The H5-04 setting does not have an
effect.
• Master drive
Detects oFAxx and coasts to stop.
• Slave drive
Detects hLCE [High Level Communication Errors] and coasts to stop.
The master drive stops communicating with the slave drive in these conditions: Reset the fault to restart communication.
The slave drive detects CE after H5-09 [CE Detection Time] is expired. Then it operates in as specified with H5-04 [Communication Error
Stop Method].
• A message error occurred in the send data from the slave drive 10 consecutive times.
• Response from the slave drive timed out 10 consecutive times.
Table 12.52 Command Data
Operation
Description
This flag enables command updates.
To input the Run command and frequency reference at the same time, write all commands,
then change the bit value from 0 to 1.
The unit of measure changes when o1-03 changes.
Refer to "15C6: Run Command (Drive 1)" for more information.
The unit of measure changes when o1-03 changes.
Refer to "15C6: Run Command (Drive 1)" for more information.
YASKAWA SIEPC71061737D GA800 Drive Technical Reference