236 Actual signals and parameters
COMM
Defines bit 13 of Command word 1 as the control for forcing
the speed to zero. The Command word 1 is supplied
through fieldbus communication (parameter
7
DI1(INV)
Inverted digital input DI1. Defines inverted digital input
DI
1
as the control for forcing the speed to zero.
• De-activating the digital input forces the speed to zero.
• Activating the digital input: speed control resumes normal
operation.
-1
DI2(INV)
See selection
-2
DI3(INV)
See selection
-3
DI4(INV)
See selection
-4
DI5(INV)
See selection
-5
23 SPEED
CONTROL
Speed controller variables. See section
on page
.
Note:
These parameters do not affect drive operation in
scalar control, ie, when parameter
setting is
.
2301 PROP GAIN
Defines a relative gain for the speed controller. High gain
may cause speed oscillation.
The figure below shows the speed controller output after an
error step when the error remains constant.
Note:
For automatic setting of the gain, use autotune run
5.00
0.00…200.00
Gain
1 = 0.01
All parameters
No.
Name/Value
Description
Def/FbEq
Gain = K
p
= 1
T
I
= Integration time = 0
T
D
= Derivation time = 0
Controller
output =
K
p
· e
e = Error
value
Error
value
Controller output
%
t
Summary of Contents for ACS355 series
Page 1: ...ABB machinery drives User s manual ACS355 drives ...
Page 4: ......
Page 16: ...16 ...
Page 32: ...32 Operation principle and hardware description ...
Page 58: ...58 Electrical installation ...
Page 74: ...74 Start up control with I O and ID run ...
Page 106: ...106 Control panels ...
Page 120: ...120 Application macros ...
Page 178: ...178 Program features ...
Page 338: ...338 Fieldbus control with embedded fieldbus ...
Page 368: ...368 Fault tracing ...
Page 404: ...404 Dimension drawings ...
Page 410: ...410 Appendix Resistor braking ...
Page 434: ...434 Appendix Permanent magnet synchronous motors PMSMs ...