Program features
70
Step referencing
It is possible to predefine four step references. The step references are selected with
digital inputs. Step reference activation overrides the external speed reference.
This function operates on a 6 ms time level.
The four step references are based on a combination of three digital inputs, for
example, DI3, DI4 and DI5.
If you need any other combination than three digital inputs, you can use the following
parameters for defining the combination. For example, if you need two-step
references with one digital input, you can set:
• Parameter
STEP REF SEL to STEP POINTER (Speed defined by pointer
selections)
• Parameter
to, for example, 500 rpm
• Parameter
to, for example, 1000 rpm
• Parameter
to, for example, +.001.017.04 (= DI5)
After this:
• If DI5 = 0, step reference 500 rpm is valid by par. 12.02.
• If DI5 = 1, step reference 1000 rpm is valid by par. 12.03.
Settings
Parameter group
DI3
DI4
DI5
Operation
0
0
0
STEP REF 1
1
0
0
STEP REF 2
1
1
0
STEP REF 3
1
1
1
STEP REF 4
Summary of Contents for ACS 800 Series
Page 1: ...ACS800 Firmware Manual Crane Control Program N697 ...
Page 4: ......
Page 26: ...Start up and control through the I O interface 26 ...
Page 36: ...Quick start up guide 36 ...
Page 52: ...Control panel 52 ...
Page 105: ...Program features 105 Figure Control diagram for Shaft synchronisation executed in 20 ms ...
Page 128: ...Program features 128 ...
Page 150: ...Application macros control location EXT1 EXT2 150 ...
Page 228: ...Actual signals and parameters 228 ...
Page 299: ...Adaptive Programming examples for crane control 299 ...
Page 305: ...Adaptive Programming examples for crane control 305 ...
Page 318: ...Analogue Extension Module 318 ...
Page 332: ...Additional data actual signals and parameters 332 ...
Page 334: ...DriveWindow 334 ...
Page 335: ...Control block diagrams 335 Control block diagrams ...
Page 336: ...Control block diagrams 336 ...
Page 337: ...Control block diagrams 337 ...
Page 338: ...Control block diagrams 338 ...
Page 340: ...www abb com drives www abb com drivespartners Contact us 3AFE68775230 Rev E EN 2012 09 25 ...