HEIDENHAIN PWM 20 - Manual (Page 106)

November 2014 Software description 107
Example of a message, if the PWM 20 (IK 215) cannot synchronize with the data stream
between NC and encoder.
Causes:
- The synchronization time is too short.
- There is no continuous data exchange between NC and encoder.
HEIDENHAIN TNCs must support the "Drive Diag" function (also see function description in the
section “Online diagnostics” on page 98).
The further procedure is the same as for open-loop measurement; see section “Open Loop
function” on page 102.