ABB ACS880 - Page 435

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
3
Drive 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
4
Drive trips on 6681 EFB communication loss. This occurs
even though no control is expected from the EFB.
Fault always
5
Drive 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
0 ms / uint16Defines a minimum response delay in addition to any fixed
delay imposed by the protocol.
Changes to this parameter take effect after the control unit
is rebooted or the new settings validated by parameter
58.6 Communication control.
Transmit delay58.17
1 = 1 ms / 1 = 1 msMinimum response delay.0...65535 ms
Parameters 435