Panasonic MINAS-A5BL Series Manual page 152

Error No.
Protective
function
Main Sub
Over-heat
15 0
protection
Over-load
0
protection
16
Torque saturation
1
error protection
Over-regeneration
0
load protection
18
Regenerative
1 transistor error
protection
(To be continued)
R1.00
Causes
Temperature of the heat sink or power device has been
risen over the specified temperature.
1) Ambient temperature has risen over the specified
temperature.
2) Over-load
Torque command value has exceeded the over-load level
set with Pr 5.12 (Setup of over-load level) and resulted in
overload protection according to the time characteristics
(described later).
1) Load was heavy and actual torque has exceeded the
rated torque and kept running for a long time.
2) Oscillation and hunching action due to poor
adjustment of gain. Motor vibration, abnormal noise.
Inertia ratio (Pr 0.04) setup error.
3) Miswiring, disconnection of the motor.
4) Machine has collided or the load has gotten heavy.
Machine has been distorted.
5) Electromagnetic brake has been kept engaged.
6) While wiring multiple axes, miswiring has occurred
by connecting the motor cable to other axis.
 The over-load protection time characteristics are described on page 103.
Torque saturated has continued for the period set to Pr
7.16 "Torque saturation error protection frequency".
Regenerative energy has exceeded the capacity of
regenerative resistor.
1) Due to the regenerative energy during deceleration
caused by a large load inertia, converter voltage has
risen, and the voltage is risen further due to the lack
of capacity of absorbing this energy of the
regeneration discharge resistor.
2) Regenerative energy has not been absorbed in the
specified time due to a high motor speed.
3) Active limit of the external regenerative resistor has
been limited to 10% duty.
Caution: Install an external protection such as thermal fuse without fail when you set up Pr 0.16 to 2. Otherwise,
regenerative resistor loses the protection and it may be heated up extremely and may burn out.
Regenerative driver transistor on the servo driver is
defective.
No. SX-DSV02829 -
Measures
1) Improve the ambient temperature and cooling condition.
2) Increase the capacity of the driver and motor. Set up
longer acceleration/ deceleration time. Lower the load.
Check that the torque (current) does not oscillates nor
fluctuate up and down very much on the graphic screen of the
network. Check the over-load alarm display and load factor
with the network.
1) Increase the capacity of the servo driver and motor. Set up
longer acceleration/ deceleration time. Lower the load.
2) Make a re-adjustment of gain.
3) Make a wiring as per the wiring diagram. Replace the
cables.
4) Remove the cause of distortion. Lower the load.
5) Measure the voltage between brake terminals. Release the
brake
6) Make a correct wiring by matching the correct motor and
Feedback Scale wires.
• Check the operating state of the amplifier.
• Take the same measure as done against Err16.0.
Check the load factor of the regenerative resistor from the
front panel or via communication. Do not use in the
continuous regenerative brake application.
1) Check the running pattern (speed monitor). Check the
load factor of the regenerative resistor and
over-regeneration warning display. Increase the capacity
of the driver and the motor, and loosen the deceleration
time. Use the external regenerative resistor.
2) Check the running pattern (speed monitor). Check the
load factor of the regenerative resistor. Increase the
capacity of the driver and the motor, and loosen the
deceleration time. Lower the motor speed. Use an external
regenerative resistor.
3) Set up Pr 0.16 to 2.
Replace the driver.
Motor Business Unit, Panasonic Corporation
146-