HEIDENHAIN TNC 426 CB, Technical Manual

Page: 7 / 1135

December 2001 Update Information No. 6 1 – 5
n
The power module table was expanded by the following columns: I-N-DC,
T-DC, F-DC, T-AC, F-AC, T-IGBT, I-N-AC-3333, I-N-AC-4000, I-N-AC-5000,
I-N-AC-6666, I-N-AC-8000 and I-N-AC-10000. The columns currently have no
function.
n
The motor table was expanded by the following columns T-DC, F-DC, T-AC
and F-AC. The columns currently have no function.
Miscellaneous
n
In the Machine-parameter programming mode, the DELETE ALL and SELECT
soft keys after the DEL/SEL SETUP soft key were switched.
1.4 Use of Speed Encoders with EnDat Interface
Regardless of the Type of encoder in the motor table, the control attempted
to communicate with a speed encoder with EnDat interface. If this did not
succeed, a speed encoder with Z1 track was assumed.
If an error occurred during communication with the EnDat encoder, the control
assumed that it was dealing with an encoder with a Z1 track. This was not the
case, however, since encoders with EnDat interface do not have a Z1 track.
This resulted in the error message
C310 Z1 track error.
As of NC software 280 476-18 (in conjunction with the setup 286 197-22), the
control uses the
Type of encoder entry in the motor table. If an encoder with
Z1 track is entered in the motor table, the message
C310 Z1 track error
appears in the event of an error. If an encoder with EnDat interface is entered
in the motor table, the control attempts to communicate with the encoder. If
this fails, the error message
C3F0 EnDat not found <axis> appears.
If you use the motor table motor.sn instead of motor.mot, the control
attempts to communicate with an encoder with EnDat interface. If this fails,
due to an error or because no EnDat encoder is connected, the control
assumes that it is dealing with an encoder with Z1 track and tries to read it. If
this fails, the error message
C310 Z1 track error
appears.
Warning
If you use the HEIDENHAIN standard motor table motor.mot and motors
with EnDat encoders, you might have to change the entry for the motor in
the SYS column (type of encoder) of the motor table or enter a new motor.
n
SYS = 1: Incremental rotary encoder with Z1 track
n
SYS = 2: Absolute speed encoder with EnDat interface