Yaskawa V1000 Option DeviceNet - Manual (Page 31)

7 Troubleshooting
YASKAWA ELECTRIC TOBP C730600 28B V1000 Option DeviceNet Installation Manual 31
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DeviceNet Option Error Codes
■ DeviceNet Option Fault Monitors U6-98 and U6-99
The DeviceNet Option SI-N3/V can declare the error/warning conditions via drive monitor
parameters as shown in Table 11 .
Table 11 DeviceNet Option Fault Monitor Descriptions
Two drive monitor parameters, U6-99 (OPTN ACTIVE STAT) and U6-98 (OPTN LATCH
STAT) assist the user in network troubleshooting.
• U6-99 displays the present DeviceNet Option SI-N3/V status.
• U6-98 displays the first declared fault since the last fault reset or power cycle.
These parameters are accessible from the DeviceNet network the or the drive digital
operator. A drive fault reset or power off clears and refreshes both U6-99 and U6-98.
Note: In the event of a PLC idle state, the action taken by the DeviceNet Option SI-N3/V is dependent
on the value of parameter F6-54 (Idle Mode Fault Detection).
Fault Condition
Fault
Declared
Status Value
(U6-99/U6-98)
Description
No Fault n/a 0 No faults.
CPU Error EF0 1 Option board failure.
PLC in Idle State EF0 2 PLC is sending polled I/O with all data set to zero.
Force Fault EF0 3
Network sent a message to force this node to the fault
state.
Network Power Loss BUS ERROR 1000 Power on DeviceNet network is off.
Connection Time-out BUS ERROR 1001 This nodes timer (Expect Packet Rate) timed out.
Dup MAC ID BUS ERROR 1002
This node and at least one other node have the same
MAC ID. Another node sent it’s MAC ID to the
network first.
Bus-Off BUS ERROR 1003 CAN transceiver senses network error.