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Hardware reference
Alarm
Error detection function
number
Main
Sub
29
2
Counter overflow error
protection 2
33
8
EXT input function alloca-
tion error
83
0
Serial bus communication
error protection
84
0
Serial bus timeout error
protection
1
Serial bus SYNC signal
error protection 1
2
Serial bus SYNC signal
error protection 2
3
Synchronization error pro-
tection
86
0
Cyclic command error pro-
tection
HARDWARE REFERENCE MANUAL
Detection details and probable cause
The value of position deviation in the unit of pulse has
29
exceeded ±2
(536870912), or the value of position
deviation in the unit of command has exceeded ±2
(1073741824).
•
While EXT1 or EXT2 is allocated to a general-pur-
pose input, EXT1 input or EXT2 input is not allo-
cated to all control modes.
•
EXT1 input is allocated elsewhere than SI4.
•
EXT2 input is allocated elsewhere than SI5.
•
EXT1 input or EX2 input is allocated via break
contact.
Communication error occurred 4 consecutive times.
SYNC signal is disconnected for 2 ms.
Communication and servo cycle out of synchronization
(SYNC signal is connected but cycle is abnormal).
SYNC signal was input 4 times or more for the commu-
nication cycle.
An error occurred in the synchronization processing.
Cyclic command is undefined.
Countermeasure
•
Check whether the motor rotates in accordance
with the position command.
30
•
Check on the torque monitor that the output torque
is not saturated.
•
Perform gain adjustment.
•
Maximize Pn013 "First torque limit setting" and
Pn524 "Second torque limit setting".
•
Perform encoder connection as per the wiring dia-
gram.
•
Allocate EXT1 input or EXT2 input to all control
modes.
•
Check the EXT1 input allocation port and logic.
•
Check the EXT2 input allocation port and logic.
•
Check if the communication cable is still con-
nected to both the Servo Drive and the TJ2-KS02
•
Check the routing of the communication cable and
the FG wiring.
•
Mount ferrite cores on the communication cable.
•
Replace the servo drive or TJ2-KS02
•
Check if the communication cable is still con-
nected to both the Servo Drive and the TJ2-KS02
•
Check the routing of the communication cable and
the FG wiring.
•
Mount ferrite cores on the communication cable.
•
Replace the servo drive or TJ2-KS02
•
Check the processing by the option unit for any
wrong cyclic command setting.
Attribute
History
Can be
Immediate
cleared
stop
√
−
−
−
√
−
√
√
−
√
√
−
√
√
−
√
−
−
√
−
−
√
√
−
283
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