Yaskawa DSD 406 - Manual (Page 71)

4 Maintenance
67 Troubleshooting Guide
3/21/96
Fault/Error Possible Causes &
Code
Fault/Error Name
Corrective Actions
Table 3. Troubleshooting Guide – Continued
266
267
268
269
270
271
272
273
274
Unexpected Null Block
Wrong S-Record Type
Bad S-Record Check
Bad S-Record End Record
File Too Large
Wrong File Name
No Memory Here
NVRAM Protected
Motor Running
YMODEM transfer is stopped. The
YMODEM protocol has been violated. A
null block was received but not expected.
➊
Re-initialize up load procedures on the
YMODEM software and the drive and try
to start again.
YMODEM transfer is stopped. The
program information data is corrupted.
➊
Try again from backup file.
❷
Recompile PAC program.
YMODEM transfer is stopped. The file to
be transmitted is too large to fit in drive’s
memory.
➊
PAC program is too large. Redo,
recompile and try again.
YMODEM transfer is stopped. The
parameter file sent does not belong to the
drive.
➊
Verify the file belongs to the drive and
try again.
YMODEM transfer is stopped. The file
attempted to write to non-existent memory.
➊
Verify drive type in PAC file is correct.
❷
Replace drive PCB or flash ROM chips.
See “Replacing Drive Control PCB”/
Maintenance Section.
YMODEM transfer is stopped. The
NVRAM switch is set to write protect the
NVRAMs.
➊
Put the NVRAM Protection switch to the
“off” position and retry transfer.
YMODEM transfer is stopped. The motor
was running during an operation that
required the motor to be stopped.
➊
Verify that the motor is not being pulled
by its load.
❷
Stop motor and retry the transfer.