Emotron VS10 - Overcurrent Monitoring

7.7.3. Overcurrent monitoring
This function monitors the instantaneous value of the motor current and serves as motor
protection.
NOTICE
This note refers to a danger which, if not avoided, may result in damage to property. With an incorrect
parameterisation, the maximum permissible motor current may be exceeded in the process. Possible consequence:
irreversible damage of the motor.
The setting of the threshold for the overcurrent monitoring in 0x2D46:001 (P353.01) must
be adapted to the connected motor.
▶ Set the maximum output current of the inverter in 0x6073 (P324.00)
much lower than the threshold for overcurrent
monitoring.
Details
The inverter monitors its output current. This monitoring takes place irrespective of the
settings for the current limiting function.
 Current limits  160
• If the instantaneous value of the motor current exceeds the threshold set in
0x2D46:001 (P353.01), the response set in 0x2D46:002 (P353.02) takes place.
• With the setting 0x2D46:002 (P353.02) = "No response [0]", the monitoring function is
deactivated.
The threshold for the overcurrent monitoring is preset to four times the rated motor
current. This presetting is overwritten in case a motor in the engineering tool is selected
from the "motor catalog" or the automatic identification or calibration of the motor data
is carried out. For a suitable protection, the automatically adapted setting should be used.
If disturbances occur during operation, the value can be increased.
Parameter
Name / value range / [default setting]
Info
0x2D46:001
(P353.01)
Overcurrent monitoring: Threshold
(Overcurr. monit.: Threshold)
0.0 ... [6.8]* ... 1000.0 A
* Default setting depending on the size.
From version 02.00
Warning/error threshold for motor current monitoring.
If the instantaneous value of the motor current exceeds the threshold
set, the response set in 0x2D46:002 (P353.02) is effected for the
purpose of motor protection.
The parameter is calculated and set in the course of the automatic
identification of the motor.
The parameter can also be set and thus overwritten by selecting a
motor in the engineering tool from the "motor catalog" or calibrating
the motor.
 Optimisation of the control loops

133
0x2D46:002
(P353.02)
Overcurrent monitoring: Response
(Overcurr. monit.: Response)
For further possible settings, see parameter
0x2D45:001 (P310.01).  163
Selection of the response to the triggering of motor current monitoring.
Associated error code:
29056 | 0x7180 Motor overcurrent
3
Fault
 Error types  84