ABB ACS880 Series Firmware Manual page 353

No. Name/Value
Fault
Last speed
Speed ref safe
Fault always
Warning
60.60 DDCS controller
ref1 type
Auto
Transparent
General
Torque
Speed
Frequency
60.61 DDCS controller
ref2 type
60.62 DDCS controller
act1 type
Auto
Transparent
General
Description
Drive trips on 7581 DDCS controller comm
occurs if control is expected from the external controller.
Drive generates an A7CA DDCS controller comm loss
warning and freezes the speed to the level the drive was
operating at. This only occurs if control is expected from the
external controller.
The speed is determined on the basis of actual speed using
850 ms low-pass filtering.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
Drive generates an A7CA DDCS controller comm loss
warning and sets the speed to the speed defined by
parameter 22.41 Speed ref safe
when frequency reference is being used). This only occurs if
control is expected from the external controller.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
Drive trips on 7581 DDCS controller comm
even though no control is expected from the external
controller.
Drive generates an A7CA DDCS controller comm loss
warning. This only occurs if control is expected from the
external controller.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
Selects the type and scaling of reference 1 received from the
external controller. The resulting value is shown by
DDCS controller ref 1.
Type and scaling are chosen automatically according to
which reference chain (see settings Torque, Speed,
Frequency) the incoming reference is connected to. If the
reference is not connected to any chain, no scaling is applied
(as with setting Transparent).
No scaling is applied.
Generic reference with a scaling of 100 = 1 (ie. integer and
two decimals).
The scaling is defined by parameter
The scaling is defined by parameter
The scaling is defined by parameter
Selects the type and scaling of reference 2 received from the
external controller. The resulting value is shown by
DDCS controller ref 2.
For the selections, see parameter
type.
Selects the type/source and scaling of actual value ACT1
transmitted to the external controller.
Type/source and scaling follow the type of reference 1
selected by parameter 60.60 DDCS controller ref1
the individual settings below for the sources and scalings.
Reserved.
Reserved.
Parameters 353
loss. This only
(or 28.41 Frequency ref safe
loss. This occurs
03.11
46.03 Torque scaling.
46.01 Speed scaling.
46.02 Frequency scaling. 5
03.12
60.60 DDCS controller ref1
type. See
Def/FbEq16
1
2
3
4
5
Auto
0
1
2
3
4
Auto
Auto
0
1
2