8.Maintenance
Trouble shooting when alarm activated
8-11
■
Alarm code 43 (Regenerative Overload)
Status at the time of alarm
Cause
1
2
3
4
5
6
7
8
Issued when power supply control is turned ON.
✔
Issued when power supply of main circuit is turned ON.
✔
✔
✔
✔
✔
✔
Issued during operation.
✔
✔
✔
✔
◆
Corrective actions
Cause
Investigation and corrective actions
1
■
Exceeded permitted value of
regenerating power in built-in
regenerative resistance
specifications.
■
Excessive load inertia moment, or
tact time is short.
■
Check the load and operating
conditions.
■
Use an external regeneration resistor.
■
Set the load inertia moment within the
specified range.
■
Increase the deceleration time.
■
Increase the tact time.
2
■
Regenerative resistance wiring
conflicts with built-in regenerative
resistance specifications.
■
Check wiring and replace if incorrect.
3
■
Regenerative resistance wiring
conflicts with external regeneration
resistor specifications.
■
Check wiring and replace if incorrect.
4
■
Regeneration resistor is
disconnected.
■
For built-in regeneration resistor
specifications, replace the driver.
■
For external regeneration resistor
specifications, replace the regeneration
resistor.
5
■
Resistance value of external
regeneration resistor is excessive.
■
Replace the current resistance value
with a value matching the
specifications.
6
■
Input power supply voltage exceeds
the specified range.
■
Check the input power supply voltage
level.
7
■
Defect in internal circuit of driver.
■
Replace the driver.
8
■
When external regenerative
resistance is selected for system
parameter ID02 and external
regenerative resistance is not
installed.
■
Install the external regenerative
resistance.
■
Set to
“
Do not connect regenerative
resistance
“
.
✔
If the setting of system parameter ID02 Regenerative Resistor Selection is incorrect, regeneration
overload is not detected properly, and the driver and surrounding circuit may be damaged or burnt.
■
Alarm code 44 (Magnetic pole position estimation error)
Status at the time of alarm
Cause
1
2
Issued when power supply control is turned ON.
✔
Issued during operation.
✔
◆
Corrective actions
Cause
Investigation and corrective actions
1
■
Magnetic pole position detection
frequency coincides with mechanical
resonance point.
■
Change magnetic pole position
detection frequency.
■
Defect in control circuit of driver
■
Replace the driver.
✔
In case magnetic pole position estimation error takes place, please refer to the setting procedures of
parameters for magnetic pole position estimation.
Summary of Contents for M-EGA-15A2301
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