ABB ACS880 - Page 416

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
3
Drive generates an A7C1 FBA A communication warning
and sets the speed to the value defined by parameter 22.41
Speed ref safe (when speed reference is being used) or
28.41 Frequency ref safe (when frequency reference is
being used).
This only occurs if control is expected from the FBA A
interface, or if supervision is forced using parameter 50.26
FBA A comm supervision force.
WARNING!
Make sure that it is safe to continue operation in
case of a communication break.
Speed ref safe
4
Drive trips on 7510 FBA A communication. This occurs
even though no control is expected from the FBA A
interface.
Fault always
5
Drive generates an A7C1 FBA A communication warning.
This only occurs if control is expected from the FBA A
interface, or if supervision is forced using parameter 50.26
FBA A comm supervision force.
WARNING!
Make sure that it is safe to continue operation in
case of a communication break.
Warning
0.3 s / uint16Defines the time delay before the action defined by
parameter 50.2 FBA A comm loss func is taken. Time count
starts when the communication link fails to update the
message. As a rule of thumb, this parameter should be set
to at least 3 times the transmit interval of the master.
Note: There is a 60-second boot-up delay immediately
after power-up. During the delay, the communication break
monitoring is disabled (but communication itself can be
active).
FBA A comm loss t
out
50.3
10 = 1 s / 10 = 1 sTime delay.0.1 ... 6553.5 s
Auto / uint16Selects the type and scaling of reference 1 received from
fieldbus adapter A.
Note: Fieldbus-specific communication profiles may use
different scalings. For more information, see the manual
of the fieldbus adapter.
FBA A ref1 type50.4
0Type 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).
Auto
1No scaling is applied (the 16-bit scaling is 1 = 1 unit).Transparent
2Generic reference with a 16-bit scaling of 100 = 1 (ie.
integer and two decimals).
General
3
The scaling is defined by parameter 46.3 Torque scaling.
Torque
4
The scaling is defined by parameter 46.1 Speed scaling.
Speed
416 Parameters