ABB ACS880 - Page 491

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
10 / uint16Defines the light intensity of the transmission LED of
RDCO module channel CH2. (This parameter is effective
only when parameter 60.1 M/F communication port is
set to RDCO CH 2. FDCO modules have a hardware
transmitter current selector.)
In general, use higher values with longer fiber optic
cables.
The maximum setting is applicable to the maximum
length of the fiber optic link. See Master/follower
functionality (page 72).
M/F link control60.7
- / -Light intensity.1...15
100 ms / uint16Sets a timeout for master/follower (DDCS)
communication. If a communication break lasts longer
than the timeout, the action specified by parameter
60.9 M/F comm loss function is taken.
As a rule of thumb, this parameter should be set to at
least 3 times the transmit interval of the master.
M/F comm loss
timeout
60.8
- / -Master/follower communication timeout.0 ms
Fault / uint16Selects how the drive reacts to a master/follower
communication break.
M/F comm loss
function
60.9
0No action taken.NoAction
1The drive generates an A7CB M/F comm loss warning.
This only occurs if control is expected from the
master/follower link, or if supervision is forced using
parameter 60.32 M/F comm supervision force.
WARNING!
Make sure that it is safe to continue operation
in case of a communication break.
Warning
2Drive trips on 7582 M/F comm loss. This only occurs if
control is expected from the master/follower link, or
if supervision is forced using parameter 60.32 M/F
comm supervision force.
Fault
3Drive trips on 7582 M/F comm loss. This occurs even
though no control is expected from the master/follower
link.
Fault always
Auto / uint16Selects the type and scaling of reference 1 received
from the master/follower link. The resulting value is
shown by 3.13 M/F or D2D ref1.
M/F ref1 type60.10
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.
2Generic reference with a scaling of 100 = 1 (ie. integer
and two decimals).
3The scaling is defined by parameter 46.3 Torque scaling.Torque
Parameters 491