Rexroth IMS
IMS-A absolute position measurement
IMS-A: Absolute measurement
The IMS-A integrated measuring system offers both absolute and incremental coded scales, with the absolute code band completely integrated into the rail. It provides:
Absolute position information immediately after system start-up
Cost and space savings, since no additional components such as batteries are required
Machine switch-on without a reference run, minimizing production ramp-up time
IMS-I incremental position measurement
IMS-I: Incremental measurement The IMS-I integrated measuring system uses the inductive measuring principle for non-contact position measuring. It provides:
Precisely engineered incremental scale and integrated reference marks
Absolute positioning measured using inductive sensor to evaluate the incremental scale and individual reference marks
Wear-free due to the non-contact system design
Key IMS Benefits at a glance:
Inductive
All components made of steel
Scale and sensors are not corrupted by external magnetic fields
Wear and maintenance-free
Resistant to contamination and vibration
Not susceptible to EMV interference
Accurate
Repeatability: +/- 0.25µm
Position resolution: 0.025µm
System accuracy: +/- 4µm/m
Coefficient of linear expansion like steel: 11 x 10-6 K-1
Exact positioning even under dynamic load changes
Very good circuit dynamic due to high position resolution
Small rail deviation even with multi-axis interpolation
No thermal compensation necessary with processing steel Integrated
Simplified design due to full linear guide integration; no attachments needed
Robust and insensitive to dirt and contamination (IP 67 protection type)
No sealing air necessary
Minimum mounting time: the guide assembly is mounted at the same time as the measuring system
Rexroth interchangeability: Comprehensive supply program for Rexroth ball and roller rail systems
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