COSMOS DRIVER SERIES 3000 - USE AND MAINTENANCE MANUAL
10.2 Control errors
They are generated by external problems or by the driver power section.
An example of external problem could be the motor overload due to a too heavy mechanical load; an example for the
errors due to power section could be the brake resistor overheating.
During the error condition the driver can not be enabled. It is necessary to carry out a specific procedure for the
elimination of the error status; there are different procedures, according to the selected controller type.
An irretrievable error can not be cancelled by software procedures. Try to disconnect the auxiliary power supply from the
driver and then connect it again. If the error persists, it might be necessary to replace it.
The error code is displayed on the VISIO and on the LEDs, according to the modes specified in chapter
10.2.1 Models for brushless motor
Cod.
Error
Description
01
VRef beyond limits
Irretrievable.
The detected value of the reference
voltage is beyond the tolerance limits.
02
The currents are not balanced
Irretrievable
. The sum of the three-phase currents of
the motor are not balanced. The current may be
wasted down to earth on the motor side and/or a
current sensor module may be damaged.
03
Reserved.
04
NTC driver interrupted
The temperature sensor of the driver is interrupted.
05
NTC motor interrupted
The temperature sensor of the motor is interrupted.
Make sure that the encoder cable is connected
properly.
06
Motor temperature too high
The motor temperature exceeds the limit set in the
parameter [1.4.10]. Make sure that the load applied to
the motor is correct (no obstructions, nor frictions). If
everything is OK or if you are testing the motor and it
has not reached the operating temperature yet, it is
recommended to increase the limit or to cool the motor.
If these hypotheses are all to be discarded, it is
recommended to replace the motor with one of a larger
size.
07
Driver temperature too high
The temperature inside the driver is too high. It is
recommended to increase the ventilation.
08
Intervention of protection
Irretrievable
. This error signals the intervention of
the hardware protection inside the power board. Here
are the main causes:
a) over-current in the output phases
b) simultaneous conduction of IGBT
c) power supply default on the IGBT Gates
d) disturb current impulse
There are several causes for these defects, both inside
and outside the driver: motor cable, motor turning-up,
wrong connections of the earth lines. If the error
persists, it will be necessary to replace the driver.
09
Converter I out of limits
This error indicates that the data applied to the motor
must be better calibrated or that the application
requires too quick current increases which can not be
controlled by the driver. While waiting for a more
precise calibration of the parameters, please reduce the
maximum speed rates and the speed increase fronts.
Moreover, make sure that the pre-selected motor is the
one actually in use.
10
DC BUS voltage exceeding the maximum
limit
This error occurs if the brake resistor can not absorb all
power generated by the motor. It can also indicate that
the mains voltage is higher than the limits permitted or
is considerably fluctuating.
Ver. 1.07
Pag. 91
