286 Parameters
Auto falling
One of the above modes is selected automatically depending
on the pulse frequency as follows:
5
(Visible when a TTL, TTL+ or HTL encoder is selected)
Selects whether calculated or estimated speed is used.
Estimation increases the speed ripple in steady state
operation, but improves the dynamics.
Note:
This parameter is not effective with FEN-xx modules
with FPGA version VIEx 2000 or later.
Disable
Last calculated speed used. (The calculation interval is 62.5
microseconds to 4 milliseconds.)
0
Enable
Estimated speed (estimated at the time of data request) is
used.
1
(Visible when a TTL, TTL+ or HTL encoder is selected)
Activates transient filtering for the encoder (changes in
direction of rotation are ignored above the selected pulse
frequency).
4880 Hz
Change in direction of rotation allowed below 4880 Hz.
0
2440 Hz
Change in direction of rotation allowed below 2440 Hz.
1
1220 Hz
Change in direction of rotation allowed below 1220 Hz.
2
Disabled
Change in direction of rotation allowed at any pulse frequency. 3
(Visible when a TTL, TTL+ or HTL encoder is selected)
Selects which encoder cable channels and wires are
monitored for wiring faults.
A, B
A and B.
0
A, B, Z
A, B and Z.
1
A+, A-, B+, B-
A+, A-, B+ and B-.
2
A+, A-, B+, B-, Z+,
Z-
A+, A-, B+, B-, Z+ and Z-.
3
=
or
Determines a pulse waiting time used in speed calculation for
the encoder interface. If no pulse edges are detected within
this time, the measured speed is zeroed by the interface.
Increasing the setting can improve measuring performance
especially at low, near zero speeds.
Notes:
• The parameter is only supported by FEN-xx modules with
FPGA version VIEx 2000 or later. On older modules, the
pulse waiting time is fixed to 4 ms.
• The parameter only affects speed measurement. Position
is updated whenever a new pulse edge is detected. When
the measured speed from the interface is zero, the drive
updates its speed data based on position changes.
4 ms
1…200 ms
Maximum pulse waiting time.
1 = 1 ms
No.
Name/Value
Description
Def
/
FbEq16
Pulse frequency of the
channel(s)
Used mode
< 2442 Hz
2442…4884 Hz
> 4884 Hz
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 ...