18 Auto tuning asynchronous motors
18.1 General
With asynchronous motors the motor data are often unavailable or the data specified on the name
plate are not correct. The optimum operating data for the motor are determined with the Autotune
function.
18.2 Determining the operating data with the Autotune function
•
The autotune function must be carried out at a motor temperature <40 ° C.
•
Before starting the auto tuning, move the empty cabin to the top stop. Correct connection of the
rotary encoder and correct connection of the motor (in phase) is a prerequisite for correct function-
ing.
If the weight balancing is 40 %, there is not sufficient reserve to move the elevator with nominal load
at nominal speed when performing the auto tune function, which assumes 50 % weight. There are
several possible ways to prevent this:
•
Reduce the Motor name plate/U_Trim parameter to 300-310 V. This frees up reserves for
travelling with nominal load.
Step 1 Enter parameters in menu Installation.
•
V* = 90 % of the system nominal speed
•
MOD_n* = calculate
•
n* = Calculated automatically
•
__D = diameter of the traction sheave
•
__iS = suspension
•
__i1 = i1 of the gear ratio i1:i2
•
__i2 = i2 of the gear ratio i1:i2
Step 2 E
nter the parameters in the Travel menu.
•
V_3 = V* (nominal speed of the installation)
In CANopen lift operation, this speed has to be configured in the control.
Step 3 First of all the value that has to be entered for the Motor name plate/f parameter has to be
calculated. This is done by carrying out the following steps 1-3.
1. Calculation of the number of pole pairs using the data on the name plate:
p = f x 60 / n
2. Calculation of the nominal frequency using the value of n* calculated in step 1 of the auto tune
function and the calculated number of pole pairs. Use the integer proportion for p:
f = n* x p / 60
3. Add 1.5 Hz to the calculated nominal frequency value:
f = f + 1.5 Hz
Enter the calculated value for the Motor name plate/f parameter.
Original operating instructions
ZAdyn4C Auto tuning asynchronous motors
R-TBA12_01-GB 2104 Index 012 Part.-No. 00163371-GB
2
01/224
To Next Page
Loading...
Need help?
General
