Parameters 311
Displays a count of packets with a CRC error received by the
drive. An increasing count indicates interference on the bus.
Can be reset from the control panel by keeping Reset down
for over 3 seconds.
-
0…4294967295
Number of CRC errors.
1 = 1
Selects how the drive reacts to an EFB communication break.
Changes to this parameter take effect after the control unit is
rebooted or the new settings validated by parameter
(
See also parameters
and
.
No action
No action taken (monitoring disabled).
0
Fault
The drive monitors communication loss when start/stop is
expected from the EFB on the currently active control
location. Drive trips on
if control in the
currently active control location is expected from the EFB or
reference is coming from the EFB, and the communication is
lost.
1
Last speed
Drive generates an
warning 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. This occurs if control or reference
is expected from the EFB.
WARNING!
Make sure that it is safe to continue
operation in case of a communication break.
2
Speed ref safe
Drive generates an
warning and sets
the speed to the speed defined by parameter
(or
when frequency reference
is being used). This occurs if control or reference is expected
from the EFB.
WARNING!
Make sure that it is safe to continue
operation in case of a communication break.
3
Fault always
Drive continuously monitors for communication loss. Drive
trips on
. This happens even thought the
drive is in a control location where the EFB start/stop or
reference is not used.
4
Warning
warning. This
occurs even though no control is expected from the EFB.
WARNING!
Make sure that it is safe to continue
operation in case of a communication break.
5
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
(
See also parameters
and
.
Any message
Any message addressed to the drive resets the timeout.
1
Cw / Ref1 / Ref2
A write of the control word or a reference resets the timeout.
2
No.
Name/Value
Description
Def/FbEq16
ACS580 FW.book Page 311 Wednesday, September 21, 2016 9:48 PM