ABB ACS580 Firmware Manual page 289

No. Name/Value
Last speed
Speed ref safe
Fault always
Warning
50.03 FBA A comm loss t
out
0.3...6553.5 s
50.04 FBA A ref1 type
Speed or frequency
Transparent
General
Torque
Speed
Frequency
Description
Communication break detection active. Upon a
communication break, the drive generates a warning
FBA A communication) and freezes the speed to the level the
drive was operating at. 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.
Communication break detection active. Upon a
communication break, the drive generates a warning
FBA A communication) and sets the speed to the value
defined by parameter 22.41 Speed ref safe
Frequency ref safe when frequency reference is being used).
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
Drive trips on 7510 FBA A
though no control is expected from the fieldbus.
Drive generates an A7C1 FBA A communication
This occurs even though no control is expected from the
fieldbus.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
Defines the time delay before the action defined by parameter
50.02 FBA A comm loss func
the communication link fails to update the message.
Time delay.
Selects the type and scaling of reference 1 received from
fieldbus adapter A. The scaling of the reference is defined by
parameters 46.01...46.04, depending on which reference
type is selected by this parameter.
Type and scaling is chosen automatically according to the
currently active operation mode as follows:
Operation mode
(see par. 19.01)
Speed control
Torque control
Frequency control
No scaling is applied.
Generic reference without a specific unit.
The scaling is defined by parameter
The scaling is defined by parameter
The scaling is defined by parameter
(or 28.41
communication. This occurs even
warning.
is taken. Time count starts when
Reference 1 type
Speed
Speed
Frequency
46.03 Torque scaling.
46.01 Speed scaling.
46.02 Frequency
Parameters 285
Def/FbEq16
2
(A7C1
3
(A7C1
4
5
0.3 s
1 = 1 s
Speed or
frequency
0
1
2
3
4
scaling. 5