
7.1 Communication Related Alarms
7
Detecting Alarm
s
/W
ar
ning
s
Related to Communication
s
or Command
s
7-3
Commu-
nication
Error
9
Data recep-
tion error
Data reception errors occurred
twice consecutively after com-
pleting the execution of the
CONNECT command. (Influ-
ence of noise, etc.)
An error is detected on the
communication LSI.
Check communication
connections.
Take countermeasures
against noise.
To recover from the alarm
state, send the ALM_-
CLR command and then
the SYNC_SET com-
mand.
If the alarm continues,
replace the SERVO-
PACK.
Zero-
speed
stop-
ping
A.E60
Possi-
ble
8
FCS error
FCS errors occurred twice
consecutively after complet-
ing the execution of the CON-
NECT command. (Influence of
noise, etc.)
Check communication
connections.
Take countermeasures
against noise.
To recover from the alarm
state, send the ALM_-
CLR command and then
the SYNC_SET com-
mand.
Zero-
speed
stop-
ping
A.E62
Possi-
ble
A
Synchro-
nous frame
not received
The synchronous frame not
received state was detected
twice consecutively after com-
pleting the execution of the
CONNECT command. (Influ-
ence of noise, etc.)
Check communication
connections.
Take countermeasures
against noise.
To recover from the alarm
state, send the ALM_-
CLR command and then
the SYNC_SET com-
mand.
Zero-
speed
stop-
ping
A.E63
Possi-
ble
Commu-
nication
Synchro-
nization
Error
C
Synchroniza-
tion error
The controller is not refreshing
the WDT data in each commu-
nication cycle after completing
communication synchroniza-
tion (in communication phase
3).
Review the WDT pro-
cessing of the controller.
To recover from the alarm
state, send the ALM_-
CLR command and then
the SYNC_SET com-
mand.
Zero-
speed
stop-
ping
A.E50
Possi-
ble
B
Transmis-
sion cycle
error
The transmission cycle interval
varied after completing the
execution of the CONNECT
command.
Review the transmission
cycle interval of the con-
troller.
To recover from the alarm
state, send the ALM_-
CLR command and then
the SYNC_SET com-
mand.
Zero-
speed
stop-
ping
A.E61
Possi-
ble
0
Internal
synchroniza-
tion error
The transmission cycle interval
varied after completing the
execution of the CONNECT
command.
Review the transmission
cycle interval of the con-
troller.
To recover from the alarm
state, turn OFF the
power and then turn it
back ON.
Stop by
dynamic
brake
A.E02
Impos-
sible
0
Internal
synchroniza-
tion error
The transmission cycle interval
varied after completing the
execution of the CONNECT
command.
Review the transmission
cycle interval of the con-
troller.
To recover from the alarm
state, send the ALM_-
CLR command and then
the SYNC_SET com-
mand.
Zero-
speed
stop-
ping
A.EA2
Possi-
ble
Continued on next page.
Continued from previous page.
Category
Alarm in Response
Remedy
SERVOPACK Side
COM-
M_ALM
Name
Meaning
Stop-
ping
Method
Alarm
Code
Alarm
Reset