Regenerative Error - Mitsubishi Electric MELSERVO-JE Instruction Manual

1. SERVO AMPLIFIER TROUBLESHOOTING
Alarm No.: 30 Name: Regenerative error
Alarm content
Detail
Detail name
No.
30.1 Regeneration (1) The setting of the
heat error
(2) The regenerative
(3) The combination of the
(4) The power supply
(5) The regenerative load
30.2 Regeneration (1) A detection circuit of
signal error
30.3 Regeneration (1) A detection circuit of
feedback signal
error
(2) Something near the
The permissible regenerative power of the built-in regenerative resistor or regenerative option was
exceeded.
A regenerative transistor in the servo amplifier is malfunctioning.
Cause
Check the
regenerative resistor regenerative resistor
(regenerative option) is (regenerative option)
incorrect. and [Pr. PA02]
setting.
Check if the
resistor (regenerative regenerative resistor
option) is not (regenerative option)
connected. is connected
correctly.
Check if the
regenerative resistor combination of the
(regenerative option) regenerative resistor
and servo amplifier is (regenerative option)
incorrect. and servo amplifier is
specified.
Check if the voltage
voltage is high. of the input power
supply is over 264 V
AC.
Check the
ratio exceeded 100%. regenerative load ratio
when the alarm
occurs.
Check if the
the servo amplifier is regenerative resistor
malfunctioning. (regenerative option)
is overheating.
Remove the
the servo amplifier is regenerative option or
malfunctioning. built-in regenerative
resistor, and then
check if the alarm
occurs at power-on.
Check the noise,
device caused it. ground fault, ambient
temperature, etc.
Check method Check result
The setting value is
incorrect.
It is set correctly.
It is not connected
correctly.
It is connected
correctly.
The combination is
incorrect.
The combination is
correct.
It is over 264 V AC.
It is 264 V AC or
less.
It is 100% or more.
It is overheating
abnormally.
The alarm occurs.
The alarm does not
occur.
It has a failure.
1 - 21
Action Target
Set it correctly. [A]
[B]
[C]
Check (2).
Connect it correctly.
Check (3).
Use them in the
correct combination.
Check (4).
Reduce the power
supply voltage.
Check (5).
Reduce the
frequency of
positioning.
Increase the
deceleration time
constant. Reduce
the load. Use a
regenerative option
if it is not being
used. Review the
regenerative option
capacity.
Replace the servo
amplifier.
Replace the servo
amplifier.
Check (2).
Take
countermeasures
against its cause.