Vacon CX User Manual

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Multi-purpose Control Application IIMulti-purpose Control Application II
Multi-purpose Control Application IIMulti-purpose Control Application II
Multi-purpose Control Application II
Vacon Plc Phone: +358-(0)201 2121 Fax: +358-(0)201 212 205
Service: +358-40-8371 150 E-mail: vacon@vacon.com
TT
TT
T
orque controlorque control
orque controlorque control
orque control
Torque control can be activated either by setting parameter 6.1 to torque control or with
digital input DIA3 (parameter 2.2=10). Torque reference source is selected with parameter
9.1 and reference scaling with parameters 9.2 and 9.3.
9.19.1
9.19.1
9.1
TT
TT
T
orque reference selectionorque reference selection
orque reference selectionorque reference selection
orque reference selection
Defines the source for torque reference value:
0 = None
1 = U
in
2 = I
in
3 = Panel torque reference r2
4 = Ain1 (option board)
5 = Ain2 (option board)
6 = Fieldbus control
9.29.2
9.29.2
9.2
TT
TT
T
orque reference scaling biasorque reference scaling bias
orque reference scaling biasorque reference scaling bias
orque reference scaling bias
9.39.3
9.39.3
9.3
TT
TT
T
orque reference scaling gainorque reference scaling gain
orque reference scaling gainorque reference scaling gain
orque reference scaling gain
The additional scaling function can be used for scaling the torque reference. The
torque reference is always fed to the torque controller even if it is not activated.
T
ref. out
= gain × T
ref. in
+ bias
9.49.4
9.49.4
9.4
TC time constantTC time constant
TC time constantTC time constant
TC time constant
Defines the time constant for the torque controller. A short time constant means
fast response.
9.59.5
9.59.5
9.5
TC min. control limitTC min. control limit
TC min. control limitTC min. control limit
TC min. control limit
Defines frequency limit below which the frequency converter operates normally
in frequency control mode.
The internal torque calculation is inaccurate at low speeds (< nominal slip of the
motor). It is recommended to operate in frequency control operation mode at low
speeds.
The reference value in frequency controlled operation mode is selected with para-
meter 1. 5.

Vacon CX Specifications

General

Brand	Vacon
Model	CX
Category	Media Converter
Language	English