ABB ACS880 Series Manual page 48

48 Parameter settings
Index Name
S_ENCGEN.01 Safe pulse encoder
version
S_ENCGEN.11 FSE diagnostic fail-
ure reaction
S_ENCGEN.14 Enc speed cross
comp tolerance
S_ENCGEN.41 Gear numerator en-
coder 1
91.11 Module 1 type
91.12 Module 1 location
92.01 Encoder 1 type
92.02 Encoder 1 source
Example value Description
Version 1 Activates the safety encoder and shows the
version parameter group S_ENCGEN.
STO Sets the action taken when there is a prob-
lem with the FSE-31 module or the safety
encoder.
STO: The FSO module goes into Fail-safe
mode and activates the drive STO function.
No STO: If there are no active safety func-
tions, the FSO module sends a warning to
the drive. If there are active safety functions,
the FSO module goes into Fail-safe mode.
Est switch not active load: With some restric-
tions, the FSO module sends a warning to
the drive and starts to use an estimated
value of the motor speed (safe speed estim-
ate). If you select this value, you must also
set the parameters related to safe speed
estimate. See the FSO-21 module user's
manual. Do not select this value in applica-
tions with an active load.
1 rpm Sets the encoder speed cross comparison
tolerance. This defines how much the axle
speed of the motor can change within 1 ms.
Adjust the default value to meet the motor
in use.
This parameter is used for the encoder dia-
gnostic. It defines how large the difference
between the speed information from channel
A and B of the encoder can be. If the differ-
ence between the speed information chan-
nels is larger than the value of this paramet-
er, FSO will safely stop the system (STO).
The suitable value depends on the configur-
ation (motor and load). Typically this value
is 2 ... 10 rpm. A value that is too small will
cause an encoder fault (A7D8) and a value
that is too large will prevent encoder dia-
gnostic related to this parameter.
For more information, see the FSO-21
module user's manual.
1 Sets the rotation direction for the safety en-
coder.
With this parameter, you can change the
rotation direction of the motor.
Adjust the default value if necessary.
FSE-31 Sets the type of the safety encoder interface
module 1.
2 Sets the slot in which the safety encoder
interface module 1 is located.
HTL1 Activates or deactivates the communication
with the safety encoder interface module 1
and sets the type for the safety encoder.
Module 1 Sets the safety encoder interface module
that the safety encoder 1 is connected to.