|
|
PDF IM2000 Data sheet ( Hoja de datos )
| Número de pieza | IM2000 | |
| Descripción | HIGH PERFORMANCE MICROSTEPPING SETP MOTOR CONTROLLER | |
| Fabricantes | IMS | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de IM2000 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
|
No Preview Available !
TTM
intelligent motion systems, inc.
Excellence in MotionTM
IM2000
HIGH PERFORMANCE MICROSTEPPING STEP MOTOR CONTROLLER
IM2000F - 80 PIN QFP
IM2000P - 68 PIN PLCCC
IM2000S - ULTRA SMALL 64 PIN QFP
OPERATING INSTRUCTIONS
1 page  
Section 2
Hardware Specifications
Section Overview
This section covers the hardware specifications of the IM2000. Covered are:
n Mechanical Specifications
n Electrical Specifications
n Pin Description
Mechanical Specifications
IM2000F - 80 Pin QFP
IM2000F
(Actual Size)
1.00 8 +/- 0.016
(25.6 +/- 0.4)
0.78 7 +/- 0.004
(20.0 +/- 0.1)
64
41
65 40
80
1
0.03 1 +/- 0.004
(0.8 +/- 0.1)
IND EX
25
24
0.01 4 +/- 0.004
(0.35 +/- 0.1)
0.05 9 +/- 0.012
(1.5 +/- 0.3)
0-12°
Figure 2.1: IM2000F Mechanical Specifications
5
5 Page 
Chip Select (CSEL) Input
The CSEL input is used to select a number of functions
that are implemented using the MSEL0 and MSEL1
inputs. If CSEL is low, or not connected, MSEL0 and
MSEL1 will function as microstep select lines as
explained earlier.
MSEL1
0
CSEL Settings
MSEL0
Function
0 SCLK to COUT
If CSEL is high, MSEL0 and MSEL1 may be used to: 0 1 SCLK to COUT
n Reset the IM2000.
1 0 Reset Controller
n Disable the PWM and driver control
outputs.
n Channel the Step Clock Input to COUT.
1 1 Disable Outputs
Table 3.2: Chip Select Settings
The relationship between the MSEL0 and MSEL1 inputs and these special functions are illustrated in Table 3.2.
Full Step Output
This active high output indicates when the motor is electrically on a full step (the poles of the motor are
aligned). This occurs when either the sine or cosine outputs are at zero.
This signal may be used to greatly reduce the overhead needed to monitor position, decreasing the number of
counts needed to track position. By utilizing the full step output it is no longer necessary to keep track of the
number of microsteps between steps on moves until the last fractional step. With the full step output, it is possible
to track position as a combination of full steps plus the number of microsteps occuring after the last full step.
In the case of long moves at high resolutions this feature will reduce the position counter size and the overhead
associated with updating/monitoring the position counter.
Dual PWM
The IM2000 contains a unique dual PWM circuit that efficiently and accurately regulates the current in the wind-
ings of a two phase stepping motor. The internal PWM accomplishes this by using an alternating recirculating/non-
recirculating mode to control the current.
Recirculating
In a recirculating PWM, the current in the windings is contained
within the output bridge while the PWM is in its OFF state (after
the set current is reached). This method of controlling the current
is efficient when using low inductance motors, but lacks response
because of its inability to remove current from the windings on
the downward cycle of the sine/cosine wave (See Figure 3.3).
Non-Recirculating
In a non-recirculating PWM, the current flows up through the
bridge and back to the supply in the OFF phase of the cycle. This
method of controlling current allows for much better response but
reduces efficiency and increases current ripple, especially in lower
inductance motors (See Figure 4.3).
DR IVE CUR RENT
R E C IR C U LATIO N
The IM2000’s PWM utilizes the best features of both by combin-
Figure 3.3: Recirculating PWM
ing recirculating and non-recirculating current control. On the rising
edge of the sine/cosine waveform, the PWM will always be in a recirculating mode. This mode allows the driver to
run at peak efficiency while maintaining minimum current ripple even with low inductance motors. On the down-
ward cycle of the sine/cosine waveform, the PWM operates in a two part cycle. In the first part of its cycle the PWM
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet IM2000.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| IM2000 | HIGH PERFORMANCE MICROSTEPPING SETP MOTOR CONTROLLER | IMS |
| IM2000S | HIGH PERFORMANCE MICROSTEPPING STEP MOTOR CONTROLLER |  ETC |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |