Lenze 8200 motec frequency inverter 0.25kW-7.5kW - Manual (Page 120)

Function library
Motor data entry/automatic detection
7−49
L
EDB82MV752 EN 5.2
Activation
)
Note!
Ensure that the motor is cold when the identification is started!
l During identification current flow via the controller outputs U, V.
l The load machine can remain connected. Holding brakes can remain in their
braking position.
l With idling motors a small angle shift can occur at the motor shaft.
1. Inhibit the controller. And wait until the drive is in standstill.
2. Enter C0087, C0088, C0089, C0090 and C0091 of your motor (see nameplate):
– It is absolutely necessary to enter correct data since important parameters such as slip
compensation, idle running current and I 2 t monitoring are based on these values.
– Enter rated motor current (C0088) and rated motor voltage (C0090) according to the
connection type (star or delta).
3. Select C0148 = 1, confirm with
v.
4. Enable controller. Identification starts (green controller LED blinking quickly).
– The motor stator resistance is measured and stored under C0084.
– The motor stator inductance is calculated from the data entered and stored under C0092.
– The V/f rated frequency is calculated and stored under C0015.
– The slip is calculated and stored under C0021.
– The identification takes approx. 30 s.
– Identification is completed when the green controller LED comes on (keypad, GDC:
c is
active).
5. Inhibit the controller.
)
Note!
Only the parameter set activated via the digital input signals will be identified.
If you want to detect motor data for any other parameter set, this parameter
set must be activated via digital input signals before it can be identified.
Motor data correction during operation
·
The motor data are corrected automatically during operation (max. ±25 %) to compensate for
temperature fluctuations.
– The values under C0084 and C0092 calculated by C0148 become active after mains
switching.
·
The values under C0084 and C0092 can be manually entered or corrected.