Delta VFD2A8MS21ANSAA User Manual

Chapter 13 Warning CodesMS300
500
ID No.
Display on LCD Keypad
Warning Name
Description
39
CANopen bus off error
(CbFn)
CANopen BUS off error
Action and Reset
Action Condition
Hardware
When CANopen card is not installed, the CbFn warning occurs.
Software
When the master receives wrong communication package, the
CbFn warning occurs.
Too much interference on BUS
The master receives wrong package when the CAN_H and CAN_L
communication cables are short, CbFn warning occurs.
Action Time
Immediately act when the fault is detected
Warning Setting Parameter
N/A
Reset Method
Manual Reset
Reset Condition
Cycle the power
Record
When Pr.00-21 ≠ 3, CbFn is a “Warning”, and the warning is not recorded.
Cause
Corrective Actions
Check if the CANopen card is
installed
Make sure the CANopen card is installed.
Check if the CANopen speed is
correct
Reset CANopen speed (Pr.09-37)
Malfunction caused by
interference
1. Verify the wiring and grounding of the communication circuit. It is
recommended to separate the communication circuit from the main circuit,
or wire in 90 degree for effective anti-interference performance.
2. Make sure the communication circuit is wired in series.
3. Use CANopen cable or add terminating resistance.
Communication cable is broken or
bad connected
Check or replace the communication cable.

Delta VFD2A8MS21ANSAA Specifications

General

Brand	Delta
Model	VFD2A8MS21ANSAA
Category	DC Drives
Language	English