Larsen & Toubro C*2000 Series, Руководство пользователя

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Chapter 7 Basic Functions
7-4
Cx2000 AC Drive
Setting of keypad potentiometer V2+ terminal AI 0 ~ 20mA (dial J1 to terminal I)
Group Code Item Set value Range Initial Unit
Drive group 0.00
Target frequency - 0.00 ~ 400.00 0.00 Hz
Frq Frequency setting mode 5 0 ~ 8 0
Set Freq code of Drive group to 5.
The main/ auxillary speed is adopted to adjust so as to reach the override function. (
Override function
available using Main/Auxiliary speed adjustment)
Relevant codes: I 2 ~ I 5
，
I11 ~ I15
 Override function is to gain precise control and fast response by combining Main and Auxiliary speed input.
Fast response can be achieved by Main speed and precise control can be accomplished by Aux. speed if
the accuracy of Main/Aux speed is set differently.
 Follow the setting below when Main speed is given via 0 ~ 20mA with Aux. speed via keypad potentiometer
(0 ~ 5V).
 When override function is used, select the Main/Aux. speed according to loads used.
Group Code Item Set Value Unit
I/O group
I 2 V2 input Min voltage 0.00 V
I 3
Corresponding frequency of V2 input Min
voltage
0.00 Hz
I 4 V2 input Max voltage 5.00 V
I 5
Corresponding frequency of V2 input Max
voltage
5.00 Hz
I12 I input Min voltage 4.00 mA
I13 Corresponding frequency of I input Min current 0.00 Hz
I14 I input Max current 20.00 mA
I15 Corresponding frequency of I input Max current 60.00 Hz
After the setting is made as above, if 2.5V is applied to V2 terminal with 12mA given to terminal I, output
frequency would be 32.5Hz. If 2.5V is applied to V2 terminal with 5V given to terminal V1, output frequency
would be 32.5Hz, too.