COSMOS DRIVER SERIES 3000 - USE AND MAINTENANCE MANUAL
11 Error codes (Sercos II model)
The drivers COSMOS 3000 - Sercos II model feature two series of error codes: the errors due to the driver and the
errors due to Sercos II field bus.
11.1 Driver errors
The error code is indicated on the FBS LEDs according to the criteria in chapter
As long as the driver is in error condition, it can not be enabled. It is necessary to carry out a specific procedure to
cancel the error status; the procedure is different according to the selected controller.
An
irretrievable
error can not be cancelled through software procedures. Try to disconnect the power supply from the
driver logic and then connect it again. If the error persists, replace the driver.
Here is a list of the errors:
Code
Error
Description
1
VRef beyond limits
Irretrievable.
The detected value of the reference
voltage is beyond the tolerance limits.
2
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.
4
NTC driver interrupted
The temperature sensor of the driver is interrupted.
5
NTC motor interrupted
The temperature sensor of the motor is interrupted.
Make sure the cable “ENCODER IN” is connected
properly.
6
Motor temperature too high
The motor temperature exceeds the limit set in
“MOTOR TEMP MAX”. 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.
7
Driver temperature too high
The inner temperature is too high. It is recommended
to increase the driver ventilation.
8
Intervention of the 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 internal/external causes for these
defects: motor cable, motor turning-up, wrong
connections of the earth lines. If the error persists, it
will be necessary to replace the driver.
9
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.
Ver. 1.07
Pag. 95
