
GEH-6641E
—————— Function Description ——————
18
Ch.1
1.1.1 Variable Connection Methods
The source allows you to assign the signal for the input Block.
Thanks to a predefined list, pick-list, the user can select the signal origin by connecting it to the input Block.
The signal selected will be assigned to the source. This signal controls the Block Function and is therefore defined
as a control signal. The signals come from different points of the control system.
The connection points can derive from:
1 - Physical terminal board
analog and digital signals from the drive terminal strip and from the
EXP expansion cards.
2 - Analog and digital signals
from DGFC option cards, Field Bus, keypad.
3 - Drive internal variables using
keypad or toolbox.
The control signal is always connected on the Source of each Block. The state of this signal depends on the
Block Function.
For example:
- the Ramp Setpoint Block which generates the ramp reference, defaults Ramp ref 1 src
source from the Analog input 1 output signal (the Block output on the analog Input 1). This
signal is in the pick-list of the Ramp ref 1 src, and can be changed. For example Int ramp ref
1 (Ramp setpoint block internal value).
- the analog Input Block, connects on its Ai 1 sgn src Source (which inverts the output
reference signal) the NULL signal. If the user wants to enable the specific function, he has
to make a selection inside the pick-list of the Ai 1 sgn src (for example ONE, Digital Input
1, etc.).
Ramp ref 1 src
Ramp setpoint
Ramp ref inv src
+1
-1
* -1
* +1
AI 1 alt value
An inp 1 output
Analog input 1 Block
Ramp Setpoint Block
Al 1 sgn src
Al 1 alt sel src
NULL
NULL
NULL
Terminal input
N
OTE
!
AI 1 alt sel src source allows you to select the signal to enable an alternative output reference.
AI 1 alt value parameter determines the value of the alternative output reference.
Ramp ref inv src allows you to select the signal for inverting the final output setpoint.
Содержание AV-300i
Страница 1: ...GEH 6641E Supersedes GEH 6641D GE Industrial Systems AV 300i TM Version 2 User s Guide ...
Страница 2: ......
Страница 12: ...GEH 6641E TABLE OF CONTENTS 12 ...
Страница 44: ...GEH 6641E Function Description 44 Ch 1 ...
Страница 174: ...GEH 6641E Function Description 174 Ch 1 ...
Страница 295: ......