Lenze i55 Series User Manual

8.3.1 V/f voltage boost
The parameterisable voltage boost makes it possible to improve the starng performance for
applicaons requiring a high starng torque.
Precondions
The funcon is only eecve in the following motor control types:
•
V/f characterisc control (VFC open loop)
•
V/f characterisc control (VFC closed loop)
Details
•
In 0x2B12:001 (P316.01), a permanent voltage boost can be set.
①
•
In 0x2B12:002 (P316.02), an addional voltage boost can be set for acceleraon processes
only.
②
•
Reference for the percentage seng of the voltage boost is the base voltage 0x2B01:001
(P303.01).
0x2540 001:
0x2916
0
[%]
[Hz]
0
0x2B01 001:
0x2B01 002:
100
0x2B12 001:
0x2B12 002:
0x2B01 002:
2
0x2B12 001:
2
Parameter Name / value range / [default seng] Info
0x2B12:001
(P316.01)
Fixed boost
(Fixed V/f boost)
0.0 ... [2.5]* ... 20.0 %
* Default seng depending on the size.
Fixed (constant) voltage boost for V/f characterisc control without feed-
back.
•
100 % ≡ V/f base voltage 0x2B01:001 (P303.01)
•
For the purpose of opmising the starng performance for applica-
ons requiring a high starng torque.
0x2B12:002
(P316.02)
V/f voltage boost: Boost at acceleraon
(V/f boosts: Dynam. V/f boost)
0.0 ... [0.0] ... 20.0 %
Addional voltage boost for V/f characterisc control without feedback.
•
100 % ≡ V/f base voltage 0x2B01:001 (P303.01)
•
This voltage boost is only acve while the motor is accelerated. It then
acts in addion to the xed voltage boost set in 0x2B12:001
(P316.01).
0x2B01:001
(P303.01)
V/f shape data: Base voltage
(V/f shape data: Base voltage)
0 ... [230]* ... 5000 V
* Default seng depending on the size.
Base voltage and base frequency dene the V/f rao and thus the gradi-
ent of the V/f characterisc.
•
The V/f base voltage is usually set to the rated motor voltage
0x2C01:007 (P320.07).
•
The V/f base frequency is usually set to the rated motor frequency
0x2C01:005 (P320.05).
0x2B01:002
(P303.02)
V/f shape data: Base frequency
(V/f shape data: Base frequency)
Device for 50-Hz mains: 0 ... [50]* ... 1500 Hz
Device for 60-Hz mains: 0 ... [60]* ... 1500 Hz
* Default seng depending on the size.
Motor control
Opmisaon of motor control
V/f voltage boost
183

Lenze i55 Series Specifications

General

Brand	Lenze
Model	i55 Series
Category	Inverter
Language	English