Lenze i510 - Ultimate Motor Current; Motor Phase Failure Detection

Parameter Name / value range / [default seng] Info
0x6078
(PAR 103)
Current actual value
(Mot
or current %)
•
Read only: x.x %
Display of the present motor current.
•
100 % ≡ rated motor current 0x6075 (PAR 323)
7.7.3 Ulmate motor current
The parameterisable ulmate motor current I
ULT
serves to pr
otect the motor.
NOTICE!
With an incorrect parameterisaon, the ulmate motor curren
t may be exceeded in the proc-
ess.
Possible consequence: irreversible damage of the motor.
▶
Be absolutely sure to adapt the seng of the ulmate motor current to the motor connec-
ted.
▶
Set the maximum output current of the inverter in 0x6073 (PAR 324) to a considerably
lower value than that of the ulmate motor current.
Parameter Name / value range / [default seng] Info
0x2D46:001
(PAR 353/001)
Monitoring of ulmate motor curren
t: Threshold
(Ult mot. current monit.: Mot. current threshold)
0.0 ... [6.8]* ... 500.0 A
•
Default seng depending on the size.
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 (PAR 353/002) is eected for the
purpose of motor protecon.
0x2D46:002
(PAR 353/002)
Monitoring of ulmate motor curren
t: Response
(Ult mot. current monit.: Mot. current resp.)
•
For possible sengs see descripon for
0x2D45:001 (PAR 310/001). ^ 94
Selecon of the response to the triggering of motor current monitoring.
3 Error
7.7.4 Motor phase failure detecon
The motor phase failure detecon funcon can be acvated for both synchronous and asyn-
chronous motors.
Precondions
Phase failur
e detecon during operaon is basically only suitable for applicaons which are
operated with a constant load and speed. In all other cases, transient processes or unfavoura-
ble operang points can cause maloperaon.
Details
If a current-carrying motor phase (U, V, W) fails during operaon, the response selected in
0x2D45:001 (PAR 310/001) is tripped if the following two condions are met:
•
Condion 1: detecon is acvated. See 0x2D45:002 (PAR 310/002)
•
Condion 2: a specic commutaon angle (approx. 150° electrically) has been covered with-
out the detecon of a current ow.
Parameter Name / value range / [default seng] Info
0x2D45:001
(PAR 310/001)
Motor phase failure detecon: R
esponse
(Motor Ø failure: Ø error response)
Selecon of the response following the detecon of a motor phase fail-
ure.
0 No response
1 Warning
2 Trouble
3 Error
Motor control
Motor protecon
Ulmate motor curren
t
94
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