KEB COMBIVERT F6 Programming Manual

Motor parameterization
© 2022 KEB Automation KG
309
Currentlimitations
The maximum permissible or possible current for the motor is limited by several
parameters (=> also chapter 4.4.8 Maximum current).
Index
Id-Text
Name
Function
0x201D
de29
inverter maximal current
Maximal current of the inverter at rated switching fre-
quency
Specification in in-
struction manual
Short-time current limit at 0
Hz
Error OL2 is triggered if the current is exceeded
0x220C
dr12
max current %
Permissible max. current in % of the rated motor cur-
rent
0x350B
is11
max current [de28 %]
Permissible max. current in % of the inverter rated
current
0x350E
is14
overload protection mode
Current limitation on short-time current
0x3523
is35
set current limit
Safety distance to the overcurrent (OC)
The current limit defined by the inverter and is35 set current limit is displayed in
de29 inverter maximal current.
is35 defines the safety distance between the control limit and the overcurrent
switch-off threshold. If this is too small, e.g. due to a very high current ripple, the
permissible maximum current can be reduced with is35 is 35 is a "PowerOn“ pa-
rameter. is 35.
The maximum permissible current for the motor is entered in dr12max current %.
Exceeding of this current could e.g. demagnetize a synchronous motor or the mo-
tor winding can be overloaded.
An inverter-dependent current limit can be preset in is11 max current [de28 %] in
is11 max current [de28 %] (e.g. to reduce heating).
A further inverter dependent current limit is given by the short-time current limit.
This is depending on the output frequency and the switching frequency. The short-
time current limit at 0 Hz can be taken from the instruction manual.
At rated switching frequency the short time current limit increases in the range of 0
to 10 Hz from the 0Hz value to de29 inverter maximal current.
is14 overload protection mode is available to prevent OL2 errors. The permissible
current is limited depending on OL2 by this function (=> Chapter 4.4.2 Overload
power components (OL2)).
The listed limits above limit the total current. The d-current component has priority,
the active current component is limited by the total limit and the d-component.
NOTICE
➢ The activation of the overload protection mode causes a dy-
namic current limitation and thus also a torque limitation. For ap-
plications in the field of lifting and lowering, this can lead to any
sag of the loads!
The d-current and the currents which identify the motor parameters are always lim-
ited by the switching frequency-dependent short-time current limit at 0Hz (inde-
pendent on the adjustment of is14) (=> Chapter 4.4.2 Overload power components
(OL2)).

KEB COMBIVERT F6 Specifications

General

Brand	KEB
Model	COMBIVERT F6
Category	Controller
Language	English