Siemens Simatic ET 200pro FC, Руководство по эксплуатации

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Commissioning and optimization (software)
7.2 Commissioning and optimization of the frequency converter and motor combination
ET 200pro FC
Operating Instructions, 07/2016, A5E01100763B AC
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identification time depends on the motor and increases with its size (this takes approx. 4 min.
for a 200 kW motor).
The motor data identification routine must be carried-out with the motor in the cold condition
so that the motor resistance values saved can be assigned to the parameter of the ambient
temperature P0625. Only then is the correct temperature adaptation of the resistances
possible during operation.
The motor data identification routine operates with the results of the "Complete
parameterization" P0340 = 1 or the motor equivalent diagram data which was last saved.
The results become increasingly better the more times that the identification routine is
executed (up to 3 times).
WARNING
It is not permissible to carry-out the motor identification routine for loads which are
potentially hazardous (e.g. suspended loads for crane applications). Before starting the
motor data identification routine, the potentially hazardous load must be secured (e.g. by
lowering the load to the floor or clamping the load using the motor holding brake).
When starting the motor data identification routine, the rotor can move into a preferred
position. This is more significant for larger motors.
Note
The equivalent circuit data (P0350, P0354, P0356, P0358, P0360) and the motor cable
resistance (P0352) are entered as phase values.
During the motor identification routine, the sum of the stator resistance (P0350) and the
motor cable resistance (P0352) are determined. To get a correct stator resistance the cable
resistance has to be set before the motor identification has been started.
If the motor cable resistance is known, it should be entered into parameter P0352 before the
motor data identification. The value of P0350 then will be changed in dependenccy of P0352
and is more precisely as the calculated value.
It is not necessary to lock the motor rotor for the motor data identification routine. However, if
it is possible to lock the motor rotor during the identification routine (i.e. by closing the motor
holding brake), then this should be used to determine the equivalent circuit diagram data.
The following formula can be applied to check the correctness of the motor rating plate data:
P
N
= √3 ∗ V
NΥ
∗ I
NΥ
∗ cos ϕ ∗ η ≈ √3 ∗ V
NΔ
∗ I
NΔ
∗ cos ϕ ∗ η
Where:
P
N
rated motor power
V
N Υ
, V
N Δ
rated motor voltage (star/delta)
I
N Υ
, I
N Δ
rated motor current (star/delta)
cos ϕ power factor
η efficiency
Before starting the motor identification, the correct ambient temp value should be entered in
P0625 (default 20°C).
If Problems occur during the identification run, for example, the current controller oscillates,
then the rating plate data should be re-checked and an approximately correct magnetizing