ProNet series AC servo system User’s manual V.1.08
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Appendix B
Alarm Display
Alarm
Alarm
Alarm
Alarm
Displa y
Displa y
Displa y
Displa y
Alarm
Alarm
Alarm
Alarm
Output
Output
Output
Output
Alarm
Alarm
Alarm
Alarm Name
Name
Name
Name
Meaning
Meaning
Meaning
Meaning
A
．
01
╳
Parameter breakdown
The checksum results of parameters are abnormal.
A
．
02
╳
AD shift channels breakdown
AD related electrical circuit is faulty
A
．
03
╳
Overspeed
The servomotor speed is excessively high and the
servomotor is out of control.
A
．
04
╳
Overload
The servomotor is operating continuously under a torque
largely exceeding ratings.
A
．
05
╳
Position error counter overflow
Internal counter overflow
A
．
06
╳
Position error pulse overflow
Position error pulse exceeded parameter(Pn504)
A
．
07
╳
The setting of electronic gear
or given pulse frequency is not
reasonable.
The setting of electronic gear is not reasonable or the
given pulse frequency is too high.
A
．
08
╳
The 1st channel of current
detection is wrong.
Something wrong with the inside chip of the 1st channel.
A
．
09
╳
The 2nd channel of current
detection is wrong.
Something wrong with the inside chip of the 2nd channel.
A
．
10
╳
Serial encoder error
Communications between servodrive and encoder is not
possible.
A
．
12
╳
Overcurrent
An overcurrent flowed through the IPM.
A
．
13
╳
Overvoltage
Main circuit voltage for servomotor rotation is excessively
high.
A
．
14
╳
Undervoltage
Main circuit voltage for servomotor rotation is excessively
low.
A
．
15
╳
Bleeder resistor error
Bleeder resistor is faulty.
A
．
16
╳
Regeneration error
Regenerative circuit error
A
．
17
╳
Resolver error
The communication of resolver is abnormal.
A
．
20
╳
Power line open phase
One phase is not connected in the main power supply.
A
．
21
╳
Instantaneous power off alarm
An power off for more than one period is occurred in AC.
A
．
41
╳
Reserved
Reserved
A
．
42
╳
Servomotor type error
The parameter setting of servodrive does not match the
servomotor.
A
．
43
╳
Servodrive type error
The parameter setting of servodrive does not match the
servomotor.
A
．
44
╳
Reserved
Reserved
A
．
45
╳
Absolute
encoder
multiturn
information error
Absolute encoder multiturn information is faulty.
A
．
46
╳
Absolute encoder multiturn
information overflow
Absolute encoder multiturn information is overflow.
