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Linear Feedback Detector

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Environmental conditions

The environmental conditions of Linear MP Scale are as follows.

Items Conditions
Ambient temperature -10 to 70 deg.
Relative humidity Less than 95%
Vibration resistance Displacement amplitude 1.5mm, 10 to 55Hz
Impact resistance 55G 11msec
IP code IP67 Equivalent
Proof of coolant water, coolant oil and dew condensation Although it does not consider using MP scale in the situation of immersed in those, if immersed at short time, the function of Scale operates without problem.However, if they are poured for a long time, the rust may occur on Scale blank, and fault may occur.
Foreign material If aluminum foil is not striped or the pattern is not injured even if the foreign materials enter between Rotor and Stator, Scale operates without problem. However, since cutting chip becomes the factor which gives the crack, please protect with the cover etc.

Purpose and Selection of Linear MP SCALE

●For small machine, MPLN series nallow-type Linear MP SCALE

Feature

・Get high accuracy by mounting MP Scale at best position, as it is thin and narrow.

・Space saving with built-in preamplifier


Note)This scale is not connectable for long stroke.

Stroke

Stroke MPLN Series Scale length
175mm MPLN-25ASC 252mm
245mm MPLN-32ASC 322mm
375mm MPLN-45ASC 452mm
545mm MPLN-62ASC 622mm
Mounting example of Narrow type Linear MP Scale

Mounting example of Narrow type Linear MP Scale MPLN series



●For general machine, MPLZ series absolute Linear MP SCALE

Features

・High accuracy 5μm/1m

・Space saving by built-in preamplifier

・Connectable with various NC system


Note)This scale is not connectable for long stroke.

Stroke

Stroke MPLZ Series Scale length
150mm MPLZ-25BSC 252mm
400mm MPLZ-50BSC 502mm
650mm MPLZ-75BSC 752mm
776mm MPLZ-87BSC 878mm
900mm MPLZ-100BSC 1002mm
1150mm MPLZ-125BSC 1252mm
1400mm MPLZ-150BSC 1502mm
1650mm MPLZ-175BSC 1752mm
1900mm MPLZ-200BSC 2002mm
Mounting example of Standard type Linear MP Scale

Mounting example of standard type Linear MP Scale MPLZ series (Absolute type)


●For general machine MPLC series (Standard incremental type)

Features

・High accuracy 5μm/1m

・Space saving by built-in preamplifier.

・Absolute detection is possible, combining the battery back-up encoder on feed motor. ( In case of FANUC and MITSUBISHI CNC )


Note)This scale is not connectable for long stroke.

Stroke

Stroke MPLC Series Scale length
150mm MPLC-25BSC 252mm
276mm MPLC-37BSC 378mm
400mm MPLC-50BSC 502mm
526mm MPLC-62BSC 628mm
650mm MPLC-75BSC 752mm
776mm MPLC-87BSC 878mm
900mm MPLC-100BSC 1002mm
1026mm MPLC-112BSC 1128mm
1150mm MPLC-125BSC 1252mm
Mounting example of Standard Type Linear MP Scale MPLC series

Mounting example of standard type Linear MP Scale MPLC series


●For large machine,MPS-C series connectable-type Linear MP SCALE

Features

・High accuracy 5μm/1m

・Long stroke is possible by connecting up to 35m.


Stroke

MPS-C Series Scale length
MPS-25CSC 250mm
MPS-50CSC 500mm
MPS-75CSC 750mm
MPS-100CSC 1000mm

Mounting example of connectable Linear MP Scale MPS-C series

Mounting example of connectable Linear MP Scale MPS-C series

Scale length and Stroke

The stroke is value which subtracted 100mm from the sum total of the length of selected Scales.
Ex) When MPS-100CSC are 3 pieces and MPS-75CSC is 1 piece,Scale stroke is,
1000mm×3 pieces+750mm-100mm=3650mm
Note) Preamplifier is required.

Mounting design for Linear Scale

About the machining accuracy of Scale mounting parts, the flatness is 0.05mm and the parallel between the mounting plane and the slide is 0.05mm.
Generally the simultaneous machining both the mounting plane and the slide is performed.

Mounting design for Scale mounting
Mounting design for Scale mounting

Pitch adjustment for Linear MP Scale

When two or more segments of Scale are connected, the pitch accuracy adjustment of mounting segments is required.

Generally the laser measuring instrument is prepared, the machine movement is measured by laser measuring instrument, and the position of segments is adjusted so that the value detected by MP scale become the same as the value measured by the laser measuring instrument.

If the pitch accuracy of Scale segments is adjusted well, high long accurate Scale can be obtained.

Note) Please equalize the right and left space of the mounting bolt of the central segment, and then install Scale at the beginning
Note) The pitch adjustment of Scale is performed in an order from the central segment.

Pitch adjustment for Linear MP Scale
Pitch adjustment for Linear MP Scale

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Business contact: Strategic Sales Operation Department
Phone: +81-75-861-3313

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