Abbreviations Used - Samson TROVIS 6495 Series Mounting And Operating Instructions

15.3

Abbreviations used

Analog input
AI
Analog output
AO
Digital input
DI
Digital output
DO
Auxiliary variable, disturbance
DV
variable or leading process
variable in ratio control
Error signal
e
Feedback
FB
Proportional-action coefficient
KP
Process value
PV
Actual value at comparator
PV0
Actual ratio
PVR
Pulse width modulation
PWM
Switch output
SO
Set point
SP
SP1...4 Set point 1...4
Internal set point
SPI
15.4 Block diagrams
Simplified block diagrams are shown for each control mode on the following pages. The
Configuration Manual KH 6495-2 EN contains detailed block diagrams.
Set point at comparator
SP0
Set point via interface
SPC
External set point, auxiliary variable,
SPE
disturbance variable
Set point of slave controller
SPM
(cascade control)
Set point ratio
SPR
Reset time
TN
Input variable for output tracking,
TR
auxiliary variable, disturbance
variable
Output tracking via interface
TRC
Derivative-action time
TV
Derivative-action gain
TV.K
Manipulated variable
Y
Operating point
Y0
Output variable of master conroller
YM
(cascade control)
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EB 6495-2 EN