Commissioning (software)
5.7 Commissioning modes
Control Units CU240S
5-28 Operating Instructions, 11/2006, A5E00766042B AA
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 stator resistance (P0350) and the motor cable
resistance (P0352) are determined.
If the motor cable resistance is known, it should be entered into parameter P0352 after 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
NÎ¥
∗ I
NÎ¥
∗ cosϕ ∗ η ≈ √3 ∗ V
NΔ
∗ I
NΔ
∗ cosϕ ∗ 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)
cosϕ power factor
η efficiency
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