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Heidenhain: Measuring and Test Equipment (PWM 9)
Analysis for HEIDENHAIN Encoders
HEIDENHAIN encoders provide all information necessary for commissioning, monitoring and diagnostics. PWM inspection devices and PWT testing devices are available specifically for analyzing the encoders. Testing devices are used for checking the function of encoders. The PWTs have fewer functions than the PWMs, much higher measuring tolerances and cannot be calibrated. There are two types of diagnostics, depending on how the devices are integrated:
Encoder diagnostics: The encoder is connected directly to the test or inspection device. This makes a comprehensive analysis of encoder functions possible.
Diagnostics in the control loop: The PWM phase meter is looped into the closed control loop (e.g. through a suitable testing adapter). This makes a real-time diagnosis of the machine or system possible during operation. The functions depend on the interface.
The PWM 9 is a universal measuring device for checking and adjusting incremental linear and angular encoders.
Functions and Benefits:
Connection to the oscilloscope via BNC connectors
Measurement of signal amplitudes, current consumption, operating voltage and scanning frequency
Graphic display of incremental signals (amplitudes, phase angle and on-off ratio) and the length and width of the reference signal
Display of symbols for the reference mark, fault detection signal and counting direction
Universal counter (interpolation selectable from single to 1024-fold)
Adjustment aid (PWT mode) for exposed linear encoders
Convenient operation via soft keys and display on LCD monitor
Measurements can be conducted even during operation
Specifications:
Inputs: Expansion modules (interface boards) for 11 µAPP; 1 VPP; TTL; HTL; EnDat*/SSI*/commutation signals
Voltage supply: DC 10 V to 30 V, max. 15 W
Dimensions: 150 mm × 205 mm × 96 mm
Outputs:
Inputs are connected through to the subsequent electronics
BNC sockets for connection to an oscilloscope
*No display of position values or parameters