Baumuller b maXX BM2500, Руководство по эксплуатации

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Description of the Software Modules and Parameters
Parameter manual b maXX BM3000
Document no.: 5.12001.07
695
of 820
4
At nominal load devices (peak current = nominal current) the current is limited to nominal
current. Additional monitoring and limitation is not required.
The Ixt-actual value is not calculated at nominal load devices and there is no current re-
duction.
This parameter is important if the PU overload monitoring is not executed via the tem-
perature model (see "Status PU temperature model'
Z
175.2
–
, only.
6.28
Motor I
2
t actual value
The output of the I
2
t model (PT
1
element) to monitor the overload monitoring of the motor.
Exceeding of
Z
6.29
–
will trigger Error 205 "I
2
t Overload".
Also see
Z
Overload monitoring of the motor (I
2
t)
–
from page 731. to the functionality of
the l
2
t motor.
Standardization: 100%

Maximum thermal load of the motor
6.29
Motor I
2
t threshold
2
t warning limit at motor overload
See also
Z
Overload monitoring of the motor (I
2
t)
–
from page 731
Standardization: 100%

Maximum thermal load of the motor
6.30
Motor apparent current smoothed
Total current actual value in 2 ms cycle calculated from filtered d and q current.

(Filter time constant 1.25 ms)
6.32
Motor real power smoothed
(from controller firmware V1.09)
From the motor-voltages and currents calculated instantaneous value of the electrical ef-
fective power
p
e real
, in kW. The calculation is based on a symmetrical three-phase sys-
tem.
whereat the following internal sizes are determined in the controller:
i
s

, i
s

Motor currents in

-coordinates (in A, instantaneous values).

e real
1000
3
2
---
 
 
u
s

i
s


u
s

i
s


+
   
= in kW