Intelligent Motion Systems dimensions IM2000S PIN Assignments

IM2000S PIN ASSIGNMENTS

PIN	NAME
59	SCLK
52	RSEL
57	RESET
60	DIR
53	CSEL
61	EN
62	FSTEP
63	FAULT
64	WR
1	MODE
45, 2	PWMA, PWMB
44, 3	SIGNA, SIGNB
43, 4	ENA, ENB
38, 39, 41, 42	HRA, LRA,
	LLA, HLA
5, 6, 8, 9	HLB, LLB,
	LRB, HRB
12–19	COS0–COS7
28–35	SIN7–SIN0
47	IHI
46	ILOW
36, 11	VSA, VSB
37, 10	OVCA, OVCB
20	CURRED
22, 23	OSCRC, OSCR
24	OVV
26	OVTMP
25, 58	VCC
7, 21, 40, 54	GND
48–51	MSEL0–MSEL3
12–19	AD0–AD7
27	COUT
55, 56	CIR0, CIR1

FUNCTION

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).

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.

Reset input. When low, this input will reset the IM2000S (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).

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 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.

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

On fullstep output signal. This active low output indicates when sine & cosine outputs of the IM2000S are positioned on a full step.

Fault output signal. This active high output indicates when a fault has occurred. It will stay active until the IM2000S is reset.

Write input. When the IM2000S is configured in the buss mode, this input is used to latch in the microstep select, enable and direction inputs.

Mode select input. This input is used to configure the IM2000S in a stand-alone or buss mode.

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.

Sign of A and sign of B output signals. These outputs indicate the sign of the sine and the sign of the cosine.

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.

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 bridge sections or half and full bridge ICs.

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 bridge power sections or half and full bridge ICs.

Cosine waveform output signals for Phase B.

Sine waveform output signals for Phase A.

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

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

Phase A and Phase B current sense inputs.

Phase A and Phase B over current/short circuit protection inputs.

Automatic current reduction output signal. This active high output is used to automatically reduce the driver output current 1 second after the last step clock input.

Resistor/capacitor inputs for on-board PWM oscillator.

Over voltage protection input.

Over temperature protection input.

Supply voltage.

Ground.

Microstep resolution select inputs. These inputs are used to select the number of microsteps per full step. The available resolu- tions (microsteps/step) are: 2, 4, 5, 8, 10, 16, 25, 32, 50, 64, 125, 128, 250, 256.

Address 0 - Address 7. 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.

PWM circulation select inputs. These inputs are used to select whether or not the PWM will be in a recirculating or a non-recir- culating mode, or an automatic recirculating and non-recirculating mode.

REV101805