Constants Function Block; Logical Constants; Numerical Constants - ABB DCS 500B Description

CONSTANTS functi-
on block
Logical constants Logical constants
Numerical
constants
FREE_SIGNALS
function block
DCS 500 Software Description
DCS 500B software consists of certain constant values which can
be used in application software or for testing purpose.
CONSTANT 0
CONSTANT -1

Numerical constants

CONSTANT 1
CONSTANT 2
CONSTANT 10
CONSTANT 100
CONSTANT 1000
CONSTANT 31416
EMF 100%
TORQ 100%
TORQ -100%
CUR,FLX,VLT 100%
CUR,FLX,VLT -100%
SPEED 100%
SPEED -100%
These signals can be set by the CMT/DCS500 or control panel.
The value can be used to give different references. Before the
drive will follow this reference, it has to be connected to the correct
input. If BACKUPSTORE MODE is activated, these values will not
be stored!
Set constants
SIG1(SPEED REF)
SIG2(SPEED STEP)
SIG3(TORQUE REF A)
SIG4(TORQUE REF B)
SIG5(TORQUE STEP)
SIG6(LOAD SHARE)
SIG7(FLUX REF)
SIG8(EMF REF)
SIG9(FORCE FWD)
SIG10(FORCE REV)
SIG11(CURRENT REF)
SIG12(CURRENT
STEP)
Functional Software description
Output Value
(12501) LOGIC 0 (false)
(12502) LOGIC 1 (true)
Output Value
(12503) 1
(12504) 2
(12505) 10
(12506) 100
(12507) 1000
31416 (≈ π * 100)
(12508)
(12509) 3786
(12510) 4000
(12511) -4000
(12512) 4095
(12513) -4095
(12514) 20000
(12515) -20000
Output Range
(12516) -30000...30000
(12517) -30000...30000
(12518) -30000...30000
(12519) -30000...30000
(12520) -30000...30000
(12521) -30000...30000
(12522) -30000...30000
(12523) -30000...30000
(12524) -30000...30000
(12525) -30000...30000
(12526) -30000...30000
(12527) -30000...30000
93