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Chapter 10 Troubleshooting|ASDA-AB Series
10-2 Revision January 2009
Fault Messages
Display Fault Name Fault Description
IGBT temperature error The temperature of IGBT is over high.
Memory error EE-PROM write-in and read-out is in error.
DSP communication
error
The communication between DSP and MCU is in error. DSP do
not respond to MCU command. The problem is on DSP side.
Serial communication
error
RS232/485 communication is in error.
Serial communication
time out
RS232/485 communication time out.
Command write-in error Control command write-in error.
Input power phase loss One phase of the input power is loss.
Pre-overload warning
To warn that the servo motor and drive is going to overload. This
alarm will display before ALM06. When the servo motor reach
the setting value of P1-56, the motor will send a warning to the
drive. After the drive has detected the warning, the DO signal
OLW will be activated and this fault message will display.
Internal command
execution time out
An error occurs when internal command is executing.
DSP communication
error
1. DSP do not respond to MCU command.
2. DSP has responded to MCU command but there is error in
response message. Maybe the hardware is damaged.
DSP communication
error
1. DSP do not respond to MCU command.
2. DSP has responded to MCU command but there is error in
response message. Maybe the hardware is damaged.
NOTE
1) If there is any unknown fault code that is not listed on the above table, please inform the distributor or
contact with Delta for assistance.