13 Troubleshooting
YASKAWA ELECTRIC
SIEP C730600 92A YASKAWA AC Drive Option SI-EN3 Technical Manual
63
Explicit Message Communications Errors
When there is a problem with a request message sent from the master in explicit communications, the drive will return
one of the following error codes.
Note:
Refer to the MEMOBUS/Modbus Data Table in the MEMOBUS/Modbus Communications chapter of the drive manual for a list
of monitor data using the MEMOBUS/Modbus message area.
Option Error Codes
Option Fault Monitors U6-98 and U6-99
The option can declare error/warning conditions via drive monitor parameters on the drive digital operator as shown in
.
Table 16 Option Fault Monitor Descriptions
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.
Error
Code
(hex)
Description
Cause
Possible Solution
08
Service not supported
The service code is incorrect.
Correct the service code.
09
Invalid attribute value
The attribute is incorrect.
Correct the attribute.
0C
Object state conflict
Attempted to change an drive constant that cannot be changed
while the drive is running.
Stop the drive.
0E
Attribute not settable
Attempted to change a read-only attribute.
Correct the service code or attribute setting.
13
Not enough data
The data size is incorrect.
Correct the data size.
14
Attribute not supported Attempted to execute a service not defined for the attribute.
Correct the service code or attribute setting.
15
Too much data
The data size is incorrect.
Correct the data size.
16
Object does not exist
An unsupported object was specified.
Correct the class or instance setting.
1F
Vendor-specific error
Attempted to change a drive constant that cannot be changed
while the drive is running.
Attempted to change a drive constant to a value outside the
setting range.
Stop the drive.
Specify a value within the setting range.
20
Invalid parameter
Attempted to change to a data value outside the setting range.
Specify a data value within the setting range.
Fault Condition
Fault Declared
Status Value
(U6-98/U6-99)
Description
No Fault
n/a
0
No faults.
Force Fault
EF0
3
Network sent a message to force this node to the fault state.
Network Link Down
BUS ERROR
1100
No network link to option.
Connection Time-out
BUS ERROR
1101
The node timer (Requested Packet Interval) timed out.
Duplicate IP Address
BUS ERROR
1102
This node and at least one other node have the same IP Address.
Default MAC Address
None
1103
Factory default MAC Address programmed into the option. Return for
reprogramming.
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