Screen 2: I/O Settings Configuration Screen
The I/O Settings screen may be accessed by clicking View > IO Settings on the menu bar. This screen is used to configure the Input Clock type, the filtering and the Active High/Low State of the Enable Input.
Input Clock Type
The Input Clock Type translates the specified pulse source that the motor will use as a reference for establishing stepping resolution based on the frequency.
Active High/Low State of the
Input Clock TypeEnable Input (Step/Dir, Quadrature or
Up/Down) Input Clock Filter
Warning
Temperature
Figure 2.6.8: SPI Motor Interface I/O Settings Screen
The three clock types supported are:
1.Step/Direction
2.Quadrature
3.Up/Down
The Clock types are covered in detail in Section 2.2: Logic Interface and Connection.
Input Clock Filter
The clock inputs may also be filtered using the Clock IOF pull down of the IMS SPI Motor Interface. The filter range is from 50 nS (10 MHz) to 12.9 µSec. (38.8 kHz). Table 2.4.3 shows the filter settings.
Input Clock Filter Settings
Min. Pulse | Cutoff Frequency |
50 nS | 10 MHz |
150 nS | 3.3 MHz |
200 nS | 2.5 MHz |
300 nS | 1.67 MHz |
|
|
500 nS | 1.0 MHz |
900 nS | 555 kHz |
1.7 ∝S | 294.1 kHz |
3.3 ∝S | 151 kHz |
6.5 ∝S | 76.9 kHz |
12.9 ∝S | 38.8 kHz |
Table 2.6.4: Input Clock Filter Settings
Enable Active High/Low
The parameter sets the Enable Input to be Active when High (Default, Disconnected) or Active when Low.
Warning Temperature
The parameter sets the temperature at which a TW, or temperature warning fault code will be generated. In the warning condition the MForce PowerDrive will continue to operate as normal. The thermal shutdown is +85°C.
34 | Microstepping MForce PowerDrive Manual Revision R032008 |
