IM2000S 데이터 시트보기 (PDF) - Unspecified

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IM2000S

HIGH PERFORMANCE MICROSTEPPING STEP MOTOR CONTROLLER

Unspecified 

IM2000S Pin Description

64Pin

QFP

NAME

Pin Function

59

SCLK

Step clock input. A positive going edge on this input will advance the motor one increment (the size of the increment is

dependent on the microstep select inputs).

52

RSEL

ROM select input. When low, this input selects the internal sine/cosine ROM. When high, AD0-AD8 are selected for use

with an external lookup table.

57

RESET

Reset input. When low, this input will reset the IM2000 (PWM, Enable, and Full Bridge outputs will be disabled). When

released, the controller will be at its initial state (sine at 0, cosine at peak).

60

DIR

Direction input. This input is used to change the direction of the motor. Physical direction also depends on the connection

of the motor windings.

Clock select input. When low, the SCLK input will be directed to the internal sine/cosine generator independent of the level

53

CSEL

of the EN input. When high, the SCLK input will be directed to the COUT output when the EN input is low and, conversely,

to the internal sine/cosine generator when the EN input is high.

61

EN

Enable input. When low, this input will enable/disable the PWM and full bridge output signals.

62

FSTEP

On fullstep output signal. This active low output indicates when the IM2000’s sine & cosine outputs are positioned on a full

step.

63

FAULT

Fault output signal. This active high output indicates when a fault has occurred. It will stay active until the IM2000 is reset.

64

WR

Write input. When the IM2000 is configured in the buss mode, this input is used to latch in the microstep select, enable,

and direction inputs.

1

MODE

Mode select input. This input is used to configure the IM2000 in a stand alone or buss mode.

45, 2

PWMA, PWMB

Phase A and Phase B pulse width modulated output signals. These outputs can be used to control the phase currents in

common PWM type power sections.

44, 3 SIGNA, SIGNB Sign of A and sign of B output signals. These outputs indicate the sign of the sine and the sign of the cosine.

43, 4

38, 39,

41, 42

ENA, ENB

Phase A and Phase B enable output signals. These active high outputs, which work in conjunction with the enable input of

PIN 6, can be used to enable/disable the power section of the driver.

HRA, LRA, LLA, Phase A high side and low side full bridge control signals. These outputs can be used to control discrete P-N or N-N full

HLA

bridge sections or half and full bridge IC’s.

5, 6, 8,

9

12-19

28-35

47

HLB, LLB, LRB, Phase B high side and low side full bridge control signals. These outputs can be used to control discrete P-N or N-N full

HRB

bridge power sections or half and full bridge IC’s.

COS0-COS7 Cosine waveform output signals for Phase B.

SIN7-SIN0 Sine waveform output signals for Phase A.

IHI

Polarity select input for active high or active low high side full bridge control outputs.

46

ILOW

Polarity select input for active high or active low low side full bridge control outputs.

36, 11

VSA, VSB Phase A and Phase B current sense inputs.

37, 10 OVCA, OVCB Phase A and Phase B over current/short circuit protection inputs.

20

CURRED

Automatic current reduction output signal. This active high output is used to automatically reduce the driver output current

typically 0.5 seconds after the last step clock input.

22, 23

24

26

25, 58

OSCRC, OSCR Resistor/capacitor inputs for on-board PWM oscillator.

OVV

OVTMP

VCC

Over voltage protection input.

Over temperature protection input.

Supply voltage

7, 21,

40, 54

48-51

12-19

27

GND

Ground.

MSEL0-MSEL3

AD0-AD7

COUT

Microstep resolution select inputs. These inputs are used to select the number of microsteps per full step. The available

resolutions (microsteps/step) are: 2, 4, 5, 8, 10, 16, 25, 32, 50, 64, 125, 128, 250, 256.

Address 0 –Address 7 on IM2000S . These outputs are used in conjunction with external

lookup tables for user supplied sine and cosine curves.

SCLK output. This output is dependent on the CSEL and EN inputs.

55, 56

CIR0, CIR1

PWM circulation select inputs. These inputs are used to select whether or not the PWM will be in a recirculating or a non-

recirculating mode, or an automatic recirculating and non-recirculating mode.

Table 2.5: IM2000S Pin Description

7

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