Bimba OLE Manual do Utilizador descarregar pdf (Página 12)

STEP+

STEP

–

DIR–

EN+

–

FAULT+

FAULT–

DIR+

h. Apply power and run self test

The DRV-4 and DRV-8 have built in Self Test functions.

When switch 8 is moved to the ON position, the

drive will automatically rotate the motor back and

forth, two turns in each direction. This feature can

be used to conrm that the motor is correctly wired,

selected and operational. Factory default is “OFF.”

OFF

SELF TEST

The drives have three inputs:

• STEP: a high speed digital input for step pulse commands, 5-24 volt logic

• DIR: a high speed digital input for the direction signal, 5-24 volt logic

• EN: a 5-24V input for commanding the removal of power from the motor

Table 8

Pulses per

revolution

Degrees per

step

Pulse frequency re-

quired for 300 RPM

Pulse frequency re-

quired for 3000 RPM

200 1.8 1,000 Hz 10,000 Hz

400 0.9 2,000 Hz 20,000 Hz

2000 0.18 10,000 Hz 100,000 Hz

5000 0.072 25,000 Hz 250,000 Hz

12800 0.028 64,000 Hz 640,000 Hz

20000 0.018 100,000 Hz 1,000,000 Hz

Microstepping provides smoothest rotation. However, a faster step pulse

rate (frequency) is required for a given RPM as shown in Table 8 below.

i. Connect input signals

inside drive

220 pF

STEP+

STEP-

220 pF

DIR+

DIR-

Motor & Power Supply

Connector

Run Current, Idle Current

Steps/rev, Inertia, Self Test

Input & Output

Signals

Motor Selector

Status LEDs

STEP and DIR inputs can be converted to STEP CW and STEP CCW by

moving the internal jumper S3. For detailed instructions, go to Step “K” of

this section.

Refer to the illustration below for identication of step, direction, and

enable inputs on the driver screw terminal blocks.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 21 22

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