Speed Switch-Off Limit; 817Speed Switch-Off Limit Hz 0.00; 818I Limit; Fin - BONFIGLIOLI ACTIVE Applications Manual

5.1.4
As an additional security element in the lowering of a load, a further monitoring has
been implemented. The reference value of the speed is compared with the actual
value of the speed. If the absolute value of the speed is larger than the actual speed
by the value entered in the parameter
overspeed" is triggered.
If the direction of rotation deviates from the nominal direction, the fault is output as
soon as the absolute value of the speed exceeds the adjustable threshold.
With the I limit parameter, the maximum permitted speed at the detected load is
scaled.
•
•
If the parameter
tive value of the stator current which sets after the acceleration at the permitted
maximum speed.
20
20

Speed switch-off limit

Speed switch-off limit 817
Speed switch-off limit 817
Parameter
No. Description
817 Speed switch-off limit
I limit
If the parameter
the same load.
I limit
If the 818 is reduced, the maximum speed is reduced accordingly. As a
minimum, the rated speed is permitted.
T
const
T
R
parameter 818
load
Parameter
No. Description
818 I limit
Operation mode LE
Speed switch-off limit
reference speed
Min.
0.00 Hz
818 is enlarged, a larger maximum speed is permitted at
P
const
f 2 f
R
R
Min.
0.01 ⋅ I
822 has been set to 1 or 2, the limit is the effec-
817, the fault "F1110
Setting
Max. Fact. sett.
999.99 Hz 10.00 Hz
3 f
4 f
R
R
Setting
Max. Fact. sett.
3 ⋅ o ⋅ I

FIN

FIN
I
FIN
06/05
06/05