1 sa 100 service adapter (online diagnosis) – HEIDENHAIN PWM 20 User Manual
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HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology
3.2
SA 100/110 Service Adapter for floating feed-through operations (listening-in)
3.2.1 SA 100 Service Adapter (online diagnosis)
The SA 100 Service Adapter serves to connect the PWM 20 and the IK 215 into the measuring
circuit of the machine axis ("closed loop").
Using the SA 100 allows for controlled traverse of the machine axis during measurement.
The diag output of the SA is connect
ed to the input (IN) of the PWM 20 (or of the interface card
IK 215 IN). The data transfer between the encoder and the subsequent electronics can be
observed via optocouplers (inactive listening-in).
Note
Closed-loop operation with SA 100 is possible with the EnDat 02, 21 and 22, Fanuc
and Mitsubishi interfaces. Moreover, the encoder and the control must support the
diagnostic function.
If an SA is connected into the measuring circuit, the ATS software no longer can
actively intervene in data transfer (control/encoder) to delete errors and warnings,
etc.
The supply voltage must be provided by the PWM 20; do not activate "Use power
supply from subsequent electronics"!
The data transfer can only be listened in (monitored)!
For more information, refer to the section “Feed-through operation (listening-in)" on
page 21.