Lenze i510 Series Commissioning

8.2.1.3 User-denable V/f characterisc
The user-denable V/f characterisc is based on the linear V/f characterisc. An addional
medium characterisc point, however, enables the adaptaon to applicaons with special tor-
que properes.
Details
An applicaon case for this characterisc shape are applicaons that require a higher torque
at lower speeds. The addional medium characterisc point can be then congured in such a
way that more voltage is provided in the lower frequency range of the characterisc. Other-
wise, the same limits apply for the adapve characterisc as for the linear characterisc.
Select V/f characterisc control with adapve characterisc:
1.
Motor control mode 0x2C00 (P300.00) = "V/f characterisc control (VFC open loop) [6]"
2.
V/f characterisc shape 0x2B00 (P302.00)= "Mulpoint [2]"
Seng of the V/f characterisc:
•
Liming factors for the V/f characterisc are rated mains voltage 0x2540:001 (P208.01),
minimum frequency 0x2915 (P210.00) and maximum frequency 0x2916 (P211.00).
•
The base voltage 0x2B01:001 (P303.01) is usually set to the rated motor voltage (motor
nameplate data). The base voltage is preset to the rated mains voltage. This again is preset
according to the product key of the inverter. 4Mains voltage ^ 95
•
The base frequency 0x2B01:002 (P303.02) is usually set to the rated motor frequency
(motor nameplate data).
•
The addional medium characterisc point is dened based on the parameters
0x2B01:003 (P303.03) and 0x2B01:004 (P303.04).
Characterisc examples:
•
Example on the le: Base voltage is set equal to rated mains voltage
•
Example on the right: Base voltage s set lower than rated mains voltage
0
[V]
[Hz]
0
0x2B01 001:
0x2B01 002:
0x2540 001:
0x2916
0x2915
0x2B01 003:
0x2B01 004:
0
[V]
[Hz]
0
0x2B01 001:
0x2B01 002:
0x2540 001:
0x2916
0x2915
0x2B01 003:
0x2B01 004:
=
Parameter Name / value range / [default seng] Info
0x2B01:003
(P303.03)
V/f shape data: Midpoint voltage
(V/f shape data: Midpoint voltage)
0 ... [0] ... 5000 V
•
From version 03.00
Denion of the medium characterisc point for user-denable V/f char-
acterisc.
•
Only relevant if V/f characterisc shape 0x2B00 (P302.00) is set =
"Mulpoint [2]".
0x2B01:004
(P303.04)
V/f shape data: Midpoint frequency
(V/f shape data: Midpoint freq)
0 ... [0] ... 1500 Hz
•
From version 03.00
Next steps
•
The inverter provides dierent funcons by means of which the drive behaviour can be
further opmised.4Opmisaon of motor control ^ 129
•
An opmisaon of the control loops is not mandatory for this motor control type but may
lead to a
beer control mode. 4Opmisaon of the control loops ^ 140
Motor control
Motor control selecon
V/f characterisc control (VFC)
119

Lenze i510 Series Specifications

General

Brand	Lenze
Model	i510 Series
Category	Inverter
Language	English