Encoder Serial Com. Verification; Loading Motor Data From Encoder - KEB COMBIVERT F5 Instruction Manual

Initial Start Up
5.8.2 Encoder serial
com. verification
5.8.3 Loading motor
data from encoder
62
ENDAT, HIPERFACE, and SIN/COS-SSI encoders support serial
communication between the encoder card on the drive and the encoder.
This serial communication transmits the digital position value and well as
other data about the motor and the encoder. The encoder can trigger
faults and advise the drive of the problem. Therefore with these types of
encoders it is necessary to verify that serial communication is functioning
normally. Parameter 2.LF.26, displays the status of the encoder / encoder
interface. When everything is functioning normally the display will show
conn. If there is an error, the drive will first stop operation with an E.ENCC
error and then will display the encoder error code from 2.LF.26 and then
a text message representing the code. All diagnostics of the encoder
interface should be handled through parameter 2.LF26. For more
information refer to parameter LF.26.
When ENDAT or HIPERFACE encoders are used on PM motors, the
motor manufacturer may pre-load the encoder with the motor data at the
factory. In this case the motor data as well as commutation position, can
then be read out from the encoder and loaded into the drive, and thus
simplify the set up and commissioning process.
Parameter 3.LF.26 allows the motor data in the encoder to be loaded
into the drive.
Reading motor data from the encoder
1) go to parameter 2.LF26 and verify serial communication is OK. Display
should show conn.
2) go to parameter 3.LF.26 and press function. The display should show
IdLE.
3) press the up arrow and the display will change to rdEnc
4) press enter and the display will change to no
5) press the up arrow and the display will change to YES
6) press enter and the display will change to rEAd. The drive will then
read the data from the encoder, update the motor parameters and reload
all drive data.
This process will load motor parameters LF.10...LF.1, LF.27, LF.34...
LF.35 and LF.77. Since the commutation position (LF.77) is also loaded
this process eliminates the need to learn the position. Therefore refer
only to section 5.11.4 regarding the start up of a PM motor.