9 Troubleshooting
YASKAWA ELECTRIC
TOBP C730600 59A V1000 Option Modbus TCP/IP Installation Manual
EN 43
Two drive monitor parameters, U6-98 and U6-99, assist the user in network troubleshooting.
• U6-98 displays the first declared fault since the last power cycle. U6-98 is only cleared
upon drive power-up.
• U6-99 displays the present option status. U6-99 is cleared upon a network-issued fault
reset and upon power-up.
If another fault occurs while the original fault is still active, parameter U6-98 retains the
original fault value and U6-99 stores the new fault status value.
Force Fault
EF0
3
Network sent a message to force this node to the
fault state
Network Link Down
BUS ERROR
1200
No network link to the option
Connection Time-out
BUS ERROR
1201
The control connection timer (F7-16) timed out
Duplicate IP Address
BUS ERROR
1202
This node and at least one other node have the same
IP address
Default MAC Address
None
1203
Factory default MAC Address programmed into the
option. Contact a Yaskawa representative or the
nearest Yaskawa sales office for details.
Fault Condition
Fault Declared
Status Value
(U6-98/U6-99)
Description
