LS ELECTRIC L7NHF Series, Руководство пользователя

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12. Maintenance and Inspection
12-7
Alarm Code Names Causes Inspection Items Measures to Take
significantly different from the
ambient temperature.
Encoder temperature
(Encoder Overheat)
Reserved
- -
Encoder
communication
(Serial Encoder
Communication Error)
Encoder cable open
(Encoder cable
disconnection)
Encoder data
(Encoder Data Error)
Encoder cable
abnormality
Check for disconnection,
abnormal connection and short
circuit.
Replace the encoder cable.
Parameter setting
abnormality
Encoder type [0x2001] and
encoder resolution [0x2002]
settings should be the same as
the motor label information.
Modify the parameter so it matches
the motor label information.
If the modified values are not applied
after saving the parameters, replace
the motor because there may be a
problem with the motor.
Encoder abnormality
-
If alarms occur continually after
power cycling, replace the motor
since there may be abnormalities in
the motor.
Drive abnormality
-
If alarms occur continually after
power cycling, replace the drive
since there may be abnormalities in
the drive.
Motor setting
(Motor ID Setting Error)
Motor ID setting
Motor ID [0x2000] setting should
be the same as the motor label
information.
Modify the parameters so that they
match the information on the motor
label. This alarm can be canceled
after parameter modification when
the power is on/off.
Drive abnormality
-
If alarms occur continually after
power cycling, replace the drive
since there may be abnormalities in
the drive.
Z Phase open
(Encoder Z-phase
Loss)
Parameter setting
abnormality Check the setting of the warning
mask [0x2014].
If the motor does not use the Z
phase (e.g. step motor), set the 14th
bit in the warning mask settings to
mask the AL-34.
Encoder cable
abnormality Check for abnormal wiring and
short circuit.
Replace the encoder cable.
Encoder abnormality
-
If alarms occur continually after
power cycling, replace the motor
since there may be abnormalities in
the motor.
Drive abnormality
-
If alarms occur continually after
power cycling, replace the drive
since there may be abnormalities in
the drive.
Low battery
(Low Voltage of
Encoder Battery)
Parameter setting
abnormality
Check the setting value of the
absolute encoder configuration
[0x2005].
If you want to use an absolute
encoder as an incremental encoder,
set it to 1 so the alarm does not
occur.
Defective battery
connection, unconnected Check the battery connection
status.
Connect the battery accurately.
Low battery voltage
Check if the battery voltage is
3.3V or higher.
Replace the battery.
Sinusoidal ENC
amplitude
(Encoder Sine Wave
Amplitude Error)
Encoder cable
abnormality
Check for disconnection,
abnormal connection and short
circuit.
Check for shield and PE
disconnection.
Replace the encoder cable.