Lenze i550

5.3 Dual rang
The inverter has two dierent load characteriscs: "Light Duty" and "Heavy Duty". The load
characterisc "Light Duty" enables a higher output current with restricons regarding over-
load capacity, ambient temperature and switching frequency. As a result, the motor can be
driven by a less powerful inverter. The selected load characterisc depends on the applicaon.
NOTICE
Load characterisc "Light Duty"
In order to avoid irreversible damage to the inverter/motor:
▶
Based on the conguraon document, check whether the inverter can be operated with the
load characterisc "Light Duty".
▶
Comply with all data in the conguraon document for this load characterisc and the cor-
responding mains voltage range. Among other things, this includes informaon on the type
of installaon and required fuses, cable cross-secons, mains chokes and lters.
▶
Set the parameters only in accordance with the following specicaons .
Details
The following table compares the two load characteriscs:
Duty selecon0x2D43:001 (P306.01)
"Heavy Duty [0]" "Light Duty [1]"
Characteriscs High dynamic requirements Low dynamic requirements
Typical applicaons Main tool drives, travelling drives, hoist drives, winders,
forming drives, and conveyors.
Pumps, fans, general horizontal materials handling tech-
nology, line drives and centrifugal pumps.
Overload capacity 3 s/200 %, 60 s/150 %
For details see conguraon document
Reduced overload
For details see conguraon document
If the inverter is reset to the default seng, the load characterisc is set to
"Heavy Duty [0]".
Parameter
Address Name / seng range / [default seng] Info
0x2D43:001
(P306.01)
Inverter load characterisc: Duty selecon
(Inv. load char.: Duty selecon)
•
Seng can only be changed if the inverter is inhibi-
ted.
Selecon of the load characterisc.
Further required sengs:
•
Set the data of the motor used.
•
Set applicaon-specic parameters such as current limits.
0 Heavy Duty Load characterisc for high dynamic requirements.
1 Light Duty Load characterisc for low dynamic requirements.
•
The device overload monitoring (i*t) is adapted.
CAUTION!
Observe the informaon in the conguraon document for this load
characterisc.
Related topics
4Motor data ^ 50
4Maximum overload current of the inverter ^ 240
Basic seng
Dual rang
41