SD710 Series Servo Drive User Manal Chapter 10 Troubleshooting
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10.2.2 Fault and warning logs
The servo is equipped with a fault and warning logging function that allows the logging of the last ten fault and warning
names, the time when the fault and warning occurred, as well as the current fault and warning names, the current warning
and the status information when the warning occurred (time stamp, actual motor speed, speed command, internal torque
command, input command pulse speed, position deviation, main circuit bus voltage, current feedback RMS, cumulative
load factor, regenerative load factor, DB resistor power consumption, maximum cumulative load factor, rotational inertia
ratio, number of serial Coder communication exceptions, internal signal monitoring, input signal X monitoring and output
signal Y monitoring).
Fault and warning logs are viewed by
Method 1
: View via the auxiliary function Fn000.
Method 2
: By monitoring function codes Un800 to Un842
10.2.3 Fault and warning outputs
The Servo can output the current fault or warning signal flag.
Relevant output signals.
Set value: 0x08
Symbols
Warning Signals
Trigger
method
Control
mode
Warning
When this signal is on, a warning signal is output.
High and low
levels
□
P
□
S
□
T
Set value: 0x0B
Symbols
Fault signals
Trigger
method
Control
mode
Alerts
When this signal is on, a fault signal is output
High and low
levels
□
P
□
S
□
T
10.2.4 Historical fault queries
Historical fault information can be queried by the user via the auxiliary function Fn000 or obtained by monitoring the
parameters, where the smaller the value of the record number, the more recent the alarm has occurred.
Table 10-4 Function codes for historical fault information queries
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Show Explanation
Unit
Data type
Communicat
ion address
Un820
Alarm log 0
-
uint16
0xE820
Un821
Alarm log 1
-
uint16
0xE821
