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
723
of 820
4
4.11.3 Overload monitoring of the power unit
Overload monitoring protects the power unit against thermal monitoring. Thereby thermal
load is emulated and monitored by a model. There are two methods for this:
m
Temperature model (enabled, if complete thermal data set is available in the de-
vice's characteristics (
Z
175.2
–
bit 3 = 1) and if the temperature model is selected
(
Z
175.1
–
bit 1 = 1, from V10.10 onwards)).
m
Ixt model (is operated, if the temperature model is not enabled).
Parameter Status PU temperature model
Z
175.2
–
bit 0 displays, which method is en-
abled.
4.11.3.1 Ixt model
The thermal load of the complete device is emulated on the basis of apparent current and
peak current time.
Figure 223: Overload monitoring of the power unit (Ixt model)
NOTE!
At nominal load devices (peak current = nominal current) the current is limited to nom-
inal current. Additional monitoring and limitation is not required.
The thermal load factor (Ixt-actual value
Z
6.27
–
or the thermal load
Z
175.15
–
) is not
calculated at nominal load devices and there is neither current limit nor PWM reduc-
tion.
Current controller Iq actual value filtered 47.5
Current controller Id actual value filtered 47.6
Apparent current actual value (I
ist
) [A
eff
]
LT nominal current 4 kHz / 8 kHz (I
nenn
) [A
eff
] 6.26
LT maximum current 4 kHz / 8 kHz (I
max
) [A
eff
] 6.25
6.27
PT1
130.1
5000_1004_rev02_int.cdr
x + y
2
2
Display
It value [%]
Limitation on
Warning 206
LT monitoring
activated
Current controller
Iq actual value filtered
47.5
Current controller
Id actual value filtered
47.6
Power unit
nominal current
(6.26)
Ixt
offset
temperature actual value
actual
I
actual
Power
unit
1
47.5
2
47.6
2
+