Mitsubishi HD-5000A Dokumentacja Pobierz pdf (Strona 115)

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

Related to the incremental encoding disk. It is the difference between

the theoretical position of one increment or bit edge and the actual

position of the edge.



The force applied to a shaft end surface directed along the axis of

rotation.



Maximum axial load is the maximum force that may be applied to the

shaft without reducing the rated operating life or causing deviation

from the rated performance.



Bi-directional refers to an encoder output code format from which

direction of travel can be determined.



Sets essential electromagnetic compatibility, within the European

markets, for all electrical and electronic equipment that may interfere

with other equipment, or that may be interfered by other equipment.



Each channel is a unique incremental output of the encoder.



A logic form that requires current flow out of the input of the PLC or

counter and back to the output of the encoder. The encoder “sinks”

this current, which is “sourced” by the input circuitry. This is the most

common output circuit configuration. It uses an NPN output transistor

in the encoder.



A logic form that requires current flow from the output of the encoder

to the input of the counter or PLC. The encoder “sources” the current

and the input circuitry of the counter or PLC “sinks” this current.

This output circuit is seldom used. It usually requires a PNP output

transistor in the encoder.



Called CPR. The number of increments on the disk of an incremental

encoder. A one thousand increment encoder has a CPR of 1000.



Differential output refers to the complementary outputs from

a feedback device when the signals are excited by a Line Driver.

Optimum performance is achieved when the receiver input impedance

is matched to the line receiver output and transmission line.



Typically made of glass, metal or plastic with precise position

incremental lines. These lines are also known as increments. The

number of increments determines the resolution or CPR of the

encoder.



An encoder is an electro-mechanical device that translates mechanical

motion (such as position, velocity, acceleration, speed, direction) into

electrical signals.



The maximum frequency in cycles per second.



An incremental encoder is a device that provides a series of periodic

signals due to mechanical motion. The number of successive cycles

corresponds to the resolvable mechanical increments of motion.



The index is a separate output generated by a special track which

produces a single cycle (or transition change) at a unique position

or positions such as center, home, zero, or reset point. Sometimes

referred to as a marker pulse.



Protected against dust. Limited ingress (no harmful deposit).



Totally protected against dust. Protected against water sprayed from all

directions. Limited ingress permitted.



Totally protected against dust. Protected against low pressure jets of

water from all directions. Limited ingress permitted.



Totally protected against dust. Protected against strong jets of water.

Limited ingress permitted.



Totally protected against dust. Protected against the effect of

immersion between 15cm and 1m.



A circuit that provides error-free output pulses in electrically noisy

environments or over long transmission lines when used with a line

receiver.



When activated, the pulse goes low (logic 0) or in a negative direction.

Do not be confused by “negative going” meaning the pulse goes

negative in relationship to the signal common or reference level. These

statements are for “positive logic” only. All shaft encoders are based

on positive logic.



Enclosure rating intended for indoor or outdoor use primarily to

provide a degree of protection against windblown dust and rain,

splashing water, and hose directed water; undamaged by the formation

of ice on the enclosure.

115

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