REFUdrive 500 RD51
Start-up
6-3
DOK-RD500*-RD51*******-IB01-EN-P
6.3
Motor optimization / motor evaluation
Motor running under no-load conditions
In the steady-state condition, the drive converter current should be
approx. 1/3 of the rated motor current.
If a significant deviation is identified, then the motor data, which was
entered in Quick-Setup, can be checked to ensure that it is correct, and
the mechanical load can be checked to ensure that it moves freely.
Running-up/accelerating under load
If the run-up /accelerating current is too high when the load is coupled, an
additional voltage boost can be selected using parameter P0185 Ua. This
means, that the point Ua on the characteristic is increased which reduces
the accelerating current, and increases the available starting torque.
Procedure
Increase the point Ua on the characteristic step-by-step, until the starting
current has reached the lowest value. The motor current starts to
increase again, if the voltage boost is too high.
We also recommend, that when the drive is accelerating, and in steady-
state operation, the current limiting does not intervene. When required,
the current limit should be increased in parameter P0532, so that the full
motor dynamic performance can be utilized, and the motor can be
prevented from stalling.
Other measures to reduce the starting current include extending the
“Accelerating ramp“ (P0280) or selecting the “Heavy-duty starting“
function (P0539) with a parameterized “delay time after start“ (P0544).
6.4
General information
•
You can quickly commission several converters using the copy
function (refer to Section 4.1.3, Parameterizing with the operator panel
“Copy function“).
•
If you wish to reset all of the parmeters to the factory setting, e.g. due
to incorrect programming, then you can use the function “Load
parameter set” with parameter P0071.
•
Fault acknowledgment: There are three ways to acknowledge a fault.
•
Using the “Esc” button on the operator panel
•
Pressing “RESET” button S9 on the control card (the cover must be
removed).
•
Controlling/energizing a configured digital input with the “Fault
acknowledgement“ function.
•
Comment: If a fault develops during operation, and a fault
acknowledgment is then made, the “Switch-on inhibit” message is
displayed. This means that the drive converter has gone into a fault
condition. A “Stop” command must be entered in order to enter the
“ready to power-on” status.
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01
