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Parameters 253
Selects the communication time levels.
In general, lower time levels of read/write services reduce
CPU load. The table below shows the time levels of the
read/write services for cyclic high and cyclic low data with
each parameter setting.
* Cyclic high data consists of fieldbus Status word, Act1 and
Act2.
** Cyclic low data consists of the parameter data mapped to
parameter groups
,
and acyclic data.
Control word, Ref1 and Ref2 are handled as interrupts
generated on receipt of cyclic high messages.
Note:
This parameter cannot be changed while the drive is
running.
Normal
Normal speed.
0
Fast
Fast speed.
1
Very fast
Very fast speed.
2
Monitoring
Low speed. Optimized for PC tool communication and
monitoring usage.
3
Activates fieldbus communication monitoring separately for
each control location (see section
on page
The parameter is primarily intended for monitoring the
communication with FBA A when it is connected to the
application program and not selected as a control source by
drive parameters.
0000b
0000b…0111b
FBA A communication monitoring selection.
1 = 1
51
Fieldbus adapter A configuration.
Displays the type of the connected fieldbus adapter module.
0
= Module is not found or is not properly connected, or is
disabled by parameter
;
1
= FPBA;
32
= FCAN;
37
= FDNA;
128
= FENA-11/21;
136
= FEPL;
485
= FSCA.
This parameter is read-only.
-
No.
Name/Value
Description
Def
/
FbEq16
Selection
Cyclic high *
Cyclic low **
10 ms
2 ms
2 ms
10 ms
500 µs
2 ms
250 µs
2 ms
Bit
Name
Value
0
Ext 1
1 = Communication monitoring active when Ext 1 is being used.
1
Ext 2
1 = Communication monitoring active when Ext 2 is being used.
2
Local
1 = Communication monitoring active when local control is being
used.
3…15
Reserved
Summary of Contents for ACS860
Page 1: ... ABB INDUSTRIAL DRIVES ACS860 primary control program Firmware manual ...
Page 4: ......
Page 10: ...10 Table of contents ...
Page 18: ...18 Using the control panel ...
Page 24: ...24 Control locations and operating modes ...
Page 54: ...54 Program features ...
Page 78: ...78 Program features ...
Page 90: ...90 Application macros ...
Page 342: ...342 Additional parameter data ...
Page 380: ...380 Fault tracing ...
Page 381: ...Fault tracing 381 ...
Page 382: ...382 Fault tracing ...
Page 436: ...436 Control chain diagrams ...