ABB ACS880 - Page 483

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
3Drive generates an A7CE EFB comm loss warning and
sets the speed to the speed defined by parameter 22.41
Speed ref safe (or 28.41 Frequency ref safe when
frequency reference is being used). This only occurs if
control is expected from the EFB, or if supervision is
forced using parameter 58.36 EFB comm supervision
force.
WARNING!
Make sure that it is safe to continue operation
in case of a communication break.
Speed ref safe
4Drive trips on 6681 EFB communication loss. This
occurs even though no control is expected from the
EFB.
Fault always
5Drive generates an A7CE EFB comm loss warning. This
only occurs if control is expected from the EFB, or if
supervision is forced using parameter 58.36 EFB comm
supervision force.
WARNING!
Make sure that it is safe to continue operation
in case of a communication break.
Warning
Cw / Ref1 / Ref2 /
uint16
Defines which message types reset the timeout counter
for detecting an EFB communication loss.
Changes to this parameter take effect after the control
unit is rebooted or the new settings validated by
parameter 58.6 Communication control.
See also parameters 58.14 Communication loss action
and 58.16 Communication loss time.
Communication loss
mode
58.15
1Any message addressed to the drive resets the timeout.Any message
2A write of the control word or a reference from the
fieldbus resets the timeout.
Cw / Ref1 / Ref2
3.0 s / uint16Sets a timeout for EFB communication. If a
communication break lasts longer than the timeout,
the action specified by parameter 58.14 Communication
loss action is taken.
Changes to this parameter take effect after the control
unit is rebooted or the new settings validated by
parameter 58.6 Communication control.
Note: There is a 30-second boot-up delay immediately
after power-up. During the delay, the communication
break monitoring is disabled (but communication itself
can be active).
See also parameter 58.15 Communication loss mode.
Communication loss
time
58.16
1 = 1 s / 10 = 1 sEFB communication timeout.0.0 ... 6000.0 s
Parameters 483