To Next Page

To Previous Page

6 ADL300 • Functions description and parameters list

2 – Drive internal variables

Internal drive control system variables, from “function block” calculations, sent via keypad, PC congurator or eldbus.

Practical example

The following examples illustrate the philosophies and methods with which more or less complex operations are performed

in the single “function blocks”, the results of which represent the output of the block.

• Example: Changing the Speed Reference source

The main drive reference (in the default conguration) Ramp ref 1 mon (PAR: 620) is generated by the output of the func-

tion block “Ramp setpoint Block”.

Its default source is the Analog input 1 mon signal (PAR: 1500), from the output of the function block “Analog input 1

Block”, which in this case refers to analog input 1 of the signal terminal strip.

To change the reference source from the analog input to a digital reference inside the drive, the input signal must be

changed to “Ramp setpoint Block”.

Enter the Ramp ref 1 src parameter (PAR: 610) and set a new reference, selecting it from among those listed in the L_ML-

TREF selection list, for example Dig ramp ref 1 (PAR: 600).

• Example: Inverting the analog reference signal

To invert the “Analog input 1X Block” output signal, the value of the An inp 1X sign src parameter (PAR: 1626), which

has a default setting of Null (no operation), must be changed by selecting the source of the command signal from among

those listed in the L_DIGSEL 2 selection list, for example Digital input X mon, One (function always enabled), etc.

-1

*-1

*+1

Null

An inp 1X sign src

Analog input 1X mon

Analog input 1X Block

Ramp Setpoint Block

Terminal input

Ramp ref 1mon

Ramp ref 1 src

Ramp ref invert src

The diagrams above illustrate the internal processing philosophy of the single “function blocks” and the result of these

changes on the other interconnected “function blocks”.

Note ! This section contains a brief description of the functions of the other parameters in the function blocks not included for the changes in the

example.

The Ramp ref invert src parameter (PAR: 616) can be used to select the source for the command to reverse the “Ramp

setpoint” function block output.

The output signal from the “Ramp setpoint” block is displayed in the Ramp ref 1 mon parameter (PAR: 620).

gefran SIEIDrive ADL300 Functions Description And Parameters List

Other manuals for gefran SIEIDrive ADL300