Lenze E82EV 8200 - Manual (Page 95)

Safety instructions
Thermal motor monitoring
2
l
95 EDK82EV113 DE/EN/FR 11.0
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0120 I 2 t switch−off 0 0
= inactive {1 %} 200 Reference: apparent motor
current (C0054)
Reference to active motor current
(C0056) possible, see C0310
C0311
*
v
Functions for
special
applications 2 1 0 All functions switched off A combination of functions can be
activated by entering the sum of
the selection values.
1, 2, 4,
8, 16 , System manual
(from software
version 3.9) 1 128 Motor overload (I 2 xt) tart value
Function active: Function switched−off:
When the device is connected to the
mains, the thermal motor load is
initialised with 50 %.
The function has to be activated for
operation in UL−approved systems. When the device is connected to
the mains, the thermal motor load
is initialised with 0 % ("cold
engine")
Adjustment
1.
Calculate C0120. This value corresponds to a motor utilisation of 100 %:
C0120 [%] +
I r
I
N
@ 100 %
I
r
Rated motor current
I r Rated controller current at switching frequency 8 kHz
2. If you decrease C0120 on the basis of the value calculated, the monitoring already responds at
a motor utilisation < 100 %.
3. If you increase C0120 on the basis of the value calculated, the monitoring only responds at a
motor utilisation > 100 %.
The controller switches off with error OC6 if the apparent motor current is greater than the rated
motor current for a longer time.