E1 Series Servo Drive User Manual Troubleshooting And Maintenance
HIWIN MIKROSYSTEM CORP. 13-15
Alarm Number And
Alarm Name
Cause Confirmation Method Corrective Action
cable is poor or the
connection is poor.
AL.FA0
Encoder power error
Servo drive malfunction N/A
malfunction, please replace
AL.FB0
Fieldbus
communication
hardware
malfunction
communication board is not
connected with the servo
Check if the communication
indicator is normal.
Replace the servo drive.
Servo drive malfunction N/A
Power on again. If the alarm
occurs again, it could be servo
drive malfunction, please
AL.FB1
Fieldbus
communication error
Fieldbus communication
cannot be established due
to signal cable
disconnection or poor
connection.
Check if the communication
cable is correctly
connected.
Replace the communication
cable or correctly connect the
communication cable, and
power on the servo drive
again. If the error still occurs, it
could be servo drive
malfunction, please replace
AL.FC0
Communication error
of gantry control
system
established. It could be
disconnection of the
communication cable or
Check if the communication
cable is correctly
connected.
Check if the communication
cable is correctly connected.
Communication is
interfered.
interference source or the
communication cable is not
Add ferrite ring or replace the
communication cable.
interrupted. For instance,
one of the axes has been
N/A
Perform alarm reset on master
axis via Thunder or external
signal. Or reset both axes.
AL.FC1
Slave axis error in
gantry control
system
An error occurs in the slave
axis of gantry control
system.
Check the cause of the
error.
After the cause of the error is
cleared, perform alarm reset
on master axis via Thunder or
external signal. Or reset both
Note:
The detection timing of AL.F50 (Motor main circuit cable disconnection) is when the motor velocity drops to the value
set in Pt507 or Pt583.
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