Delta Electronics AC Motor Drive VFD-E, User Manual

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Chapter 6 Fault Code Information and Maintenance
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Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11 6-5
Fault
Name
Fault Descriptions Corrective Actions
CANopen Heartbeat Time out
（ Only for VFDxxxExxC ）
Connect to CAN bus again and reset CAN bus
CANopen SYNC Time out
（ Only for VFDxxxExxC ）
Check if CANopen synchronous message is
abnormal
CANopen SDO Time out
（
Only for VFDxxxExxC
）
Check if command channels are full
CANopen SDO buffer
overflow
（
Only for
VFDxxxExxC
）
1. Too short time between commands, please
check SDO message sent from the master
2. Reset CAN bus
CAN bus off
（
Only for
VFDxxxExxC
）
1. Check if it connects to terminal resistor
2. Check if the signal is abnormal
3. Check if the master is connected
CAN Boot up fault
（
Only for
VFDxxxExxC
）
1. Check if the master is connected
2. Reset CAN bus
Error communication protocol
of CANopen
（
Only for
VFDxxxExxC
）
Check if the communication protocol is correct