Parameters 151
58.12 CRC errors Shows 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
58.14 Communication
loss action
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 58.06
Communication control (Refresh settings).
See also parameters 58.15 Communication loss mode and
58.16 Communication loss time.
No action
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 6681 EFB comm loss 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 A7CE EFB comm loss 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 Not applicable.
Fault always Drive continuously monitors for communication loss. Drive
trips on 6681 EFB comm loss. This happens even thought the
drive is in a control location where the EFB start/stop or
reference is not used.
4
Warning Drive generates an A7CE EFB comm loss 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
58.15 Communication
loss mode
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 58.06
Communication control (Refresh settings).
See also parameters 58.14 Communication loss action and
58.16 Communication loss time.
Any message
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
58.16 Communication
loss time
Sets 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 58.06
Communication control (Refresh settings).
See also parameter 58.15 Communication loss mode.
60.0 s
0.0…6000.0 s EFB communication timeout. 1 = 1
No. Name/Value Description Def/FbEq16
ACQ80 FW.book Page 151 Thursday, February 14, 2019 11:33 AM
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