Elmomc SimplIQ Command Reference Manual do Utilizador descarregar pdf (Página 59)

In the above example, make the following assumptions:

• An interpolated encoder is used.

• The maximum speed of the motor remains 10,000 rpm.

• The motor is equipped with an interpolated encoder with 2048 analog

sine/cosine periods per mechanical revolution.

• The interpolation x32 (CA[31]=5) is used.

• The feedback resolution is formed as

revcounts /655362*2048

= .

The expected minimum encoder (analog sine/cosine signals without interpolation)

transition time is:

sec4.732

000,10*4*2048

minsec/60

rpm

The encoder pulse time (sine/cosine signal cutting by hardware comparator) is

calculated as

sec11.183

sec4.732

and because of the CPU clock frequency,

the minimum required encoder signal stable time should be set to 200 nsec (i.e.

EF[ ] = 1).

Attributes: Type: Parameter, Integer

Source: Program, RS-232, CANopen

Restrictions: None

Default values: 0 (RS), Non-volatile

Range: [0...127]

Index range: [1, 2]

Unit modes: All

Activation: Immediate

SimplIQ Command Reference Manual Alphabetical Listing

MAN-SIMCR (Ver. 4.5)

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Elmomc SimplIQ Command Reference Manual do Utilizador Página 59