Parameters
92 Operating manual for INVEOR α | DOC01539818 - 0004 | 2017-01 | V2.0 EN
5.3.11 Motor current limit
This function limits the motor current to a parameterised maximum value after a parameterised
current-time zone has been reached.
This motor current limit is monitored at application level and thereby limits with relatively low
dynamics. This has to be taken into consideration when selecting this function.
The maximum value is determined using the “motor current limit as %” parameter (5.070). This is
stated as a percentage and relates to the nominal motor current specified in the “motor current”
type plate data (33.031).
The maximum current-time zone is calculated from the product of the “motor current limit in s”
parameter (5.071) and the fixed overcurrent of 50% of the required motor current limit.
As soon as this current-time zone is exceeded, the motor current is restricted to the limit value by
reducing the speed. If the output current of the drive controller exceeds the motor current
(parameter 33.031) multiplied by the set limit as % (parameter 5.070) for the set time (parameter
5.071), the output current of the drive controller is limited permanently to the parameterised value.
The entire function can be deactivated by setting the “motor current limit as %” parameter (5.070)
to zero.
5.070 Motor current limit as % Unit: %
Relationship
to parameter:
5.071
33.031
Parameter
manual:
P. xy
Transfer status:
2
min.: 0 Own value
(to be entered!)
max.: 250
def.: 0
0 = disable
See description 5.3.1
5.071 Motor current limit S Unit: s
Relationship
to parameter:
5.070
33.031
Parameter
manual:
P. xy
Transfer status:
2
min.: 0 Own value
(to be entered!)
max.: 100
def.: 1
See description 5.3.1
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