Projecta IM2000 Instrucciones de operaciones descargar pdf (Pagina 45)

Direction (P1:3)

The direction input controls the CW/CCW direction of the motor. The

direction of motion will depend upon the wiring of the motor phases. This

input is synchronized to the positive going edge of the step clock input.

Enable (P1:5)

This input can be used to enable or disable the driver output circuitry. When in

a logic HIGH (default, unconnected) state the driver outputs will be enabled

and step clock pulses will cause the motor to advance. When this input is pulled

LOW, by means of a switch or sinking output, the driver output circuitry will

be disabled. Please note that the internal sine/cosine position generator will

continue to increment or decrement as long as step clock pulses are being

received by the IM483.

This input is asynchronous to any other input and may be changed at any time.

Reset (P1:6)

The reset input will disable the outputs and reset the driver to its initial state

(Phase A OFF, Phase B full ON) when pulled LOW by a switch or sinking

output.

Use of this input may also be used to clear a “Fault” condition, provided the

cause of the fault has been eliminated.

The reset input is asynchronous to any other input and may also be changed at

any time.

Input Timing

The direction input and the microstep resolution inputs are internally synchro-

nized to the positive going edge of the step clock input. When the step clock

pulse goes HIGH, the state of the direction input and microstep resolution

settings are latched. Any changes made to the direction and/or microstep

resolution will occur on the rising edge of the step clock pulse following this

change. Table 7.4 lists the timing specifications.

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noitacificepS tupnI emiT

htdiWesluPmuminiMteseRSn005

htdiWesluPmuminiM kcolCpetS Sn57

emiTnoitucexElacipyTkcolCpetSSn001

emiTnoitucexElacipyT

noituloseRpetsorciMoslA(noitceriD

)tceleS

Sn001

Table 7.4: Isolated Logic Input Timing

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 76 77

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Projecta IM2000 Instrucciones de operaciones Pagina 45