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5.3 Limitation of the speed by fixed frequencies
The maximum permitted speed can be limited by the parameters
ixed Frequency 1
480, Fixed Frequency 2 481 , Fixed Frequency 3 482 and Fixed Frequency 3 483.
For this, the parameter
Frequency upper limit source 769 is to be set to the opera-
tion mode 110.
If the additional limitation has been activated, the maximum frequency (maybe per-
mitted by the load detection or its modification during the movement of a luffing jib) is
limited to the current fixed frequency. The limitation is effective for both clockwise
and anti-clockwise.
Operation mode Function
0 -Off There is no additional speed limitation
110 -Fixed limit
The selected fixed frequencies are taken into ac-
count for limitation
5.4 Temperature adjustment
The properties of the asynchronous machine change with the temperature and can be
taken into account via a suitable measurement or estimate. Various methods and
sources of actual values for temperature detection are to be selected via the parame-
ter
Operation mode Temperature adjustment 465.
The parameter
Operation mode Temperature adjustment 465 is pre-set to the opera-
tion mode 4-temperature estimate in the confi
gurations 260 and 460. In switching on,
the temperature of the asynchronous machine is estimated and taken into account for
correct calculation.
If this is not required, the parameter
Operation mode Temperature adjustment 465
must be parameterized to the operation mode 0-Off.
Operation mode Function
0 -Off The function is deactivated
1 -Temp. Detect. At AE1
Temperature synchronization (0 … 200
°
C => 0/2 …
10V), actual temperature value to multifunctional input
1
2 -Temp. Detect. At AE2
Temperature synchronization (0 … 200
°
C => 0/2 …
10V), actual temperature value to multifunctional input
2
3 -Temp. Detect. At AE3
Temperature synchronization (0 … 200
°
C => 0/2 …
10V), actual temperature value to multifunctional input
3
4 -Temperature estimate Temperature synchronization by estimation
11 to 13
Operation modes 1 to 3 with the VECTRON extension
temperature synchronization (-26.0 … 207.8
°
C => 0 …
10V)
The
Adjusting temperature 467 is to be set to the temperature at which the optimiza-
tion of the extended machine data has been carried out. The temperature can be read
out via the actual value parameter
Winding temperature 226 and can be used in the
optimization for the parameter.
Parameter Setting
No. Description Min. Max. Fact. sett.
467 Adjusting temperature -50.0 °C 300.0 °C 100.0 °C
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