29 – 566 HEIDENHAIN Service Manual iTNC 530
29.3 PWM 9 Encoder Diagnostic Set
Brief description The PWM 9 set currently has the ID 512134-01.
The PWM 9 phase angle measuring unit for inspecting and adjusting HEIDENHAIN
incremental linear and angle encoders.
There are different expansion modules available for checking the different encoder signals
(11 µApp, 1 Vpp, TTL, HTL).
The PWM 9 can be connected in series between the encoder and the control.
Inspections at "operating speed" are possible.
The signal amplitude is also measured when the encoder has stopped.
For inspecting and adjusting HEIDENHAIN measuring systems in the workshop PWM 9
can also be used without subsequent electronics (e.g., control, position display).
If the PWM 9 is connected in the signal path between the encoder and the control:
Do not change the settings of the PWM 9 (e.g., parameters, encoder voltages) and do not
switch it off while the machine tool is operating.
This could lead to damage or injury to the machine or persons!
Read the User’s Manual of the PWM 9 in detail, before you use the device.
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