ABB ACS355 - Page 190

190 Actual signals and parameters
DI3U,4D(RNC) Digital input DI3: Reference increase. Digital input DI4:
Reference decrease. Stop command resets the reference to
zero.
The reference is not saved if the control source is changed
(from EXT1 to EXT2, from EXT2 to EXT1 or from LOC to
REM). Parameter 2205 ACCELER TIME 2 defines the rate
of the reference change.
11
DI3U,4D(NC) Digital input DI3: Reference increase. Digital input DI4:
Reference decrease.
The program stores the active speed reference (not reset by
a stop command). The reference is not saved if the control
source is changed (from EXT1 to EXT2, from EXT2 to EXT1
or from LOC to REM). When the drive is restarted, the motor
ramps up at the selected acceleration rate to the stored
reference. Parameter 2205 ACCELER TIME 2 defines the
rate of the reference change.
12
AI1+AI2 Reference is calculated with the following equation:
REF = AI1(%) + AI2(%) - 50%
14
AI1*AI2 Reference is calculated with the following equation:
REF = AI1(%) · (AI2(%) / 50%)
15
AI1-AI2 Reference is calculated with the following equation:
REF = AI1(%) + 50% - AI2(%)
16
AI1/AI2 Reference is calculated with the following equation:
REF = AI1(%) · (50% / AI2 (%))
17
KEYPAD(RNC) Defines the control panel as the reference source. Stop
command resets the reference to zero (the R stands for
reset). The reference is not saved if the control source is
changed (from EXT1 to EXT2, from EXT2 to EXT1).
20
KEYPAD(NC) Defines the control panel as the reference source. Stop
command does not reset the reference to zero. The
reference is stored. The reference is not saved if the control
source is changed (from EXT1 to EXT2, from EXT2 to
EXT1).
21
DI4U,5D See selection DI3U,4D.30
DI4U,5D(NC) See selection DI3U,4D(NC).31
FREQ INPUT Frequency input 32
SEQ PROG Sequence programming output. See parameter 8420 ST1
REF SEL.
33
AI1+SEQ
PROG
Addition of analog input AI1 and Sequence programming
output
34
AI2+SEQ
PROG
Addition of analog input AI2 and Sequence programming
output
35
1104 REF1 MIN Defines the minimum value for external reference REF1.
Corresponds to the minimum setting of the used source
signal.
0.0 Hz /
1rpm
All parameters
No. Name/Value Description Def/FbEq