Group Parameters of the Cam Switch¶
| Name | Value | Internal value | Internal value, type | Default |
|---|---|---|---|---|
| numOfUsedCams 1) | 0 … 32 128…160 |
0 … 32 218…160 |
WORD | 0 |
| resolution 2) | 0 … 2 -1 |
0 … 2 -1 |
DWORD | 36000 |
| zeroShift 3) | 0 … 2 -1 |
0 … 2 -1 |
DWORD | 0 |
| EncoderBitResolution 4) | 8 … 32 | 8 … 32 | WORD | 18 |
| Reserve | - | - | WORD | - |
1) The parameter numOfUsedCams defines the interrupt cycle time (Therefore, it takes effect to the accuracy of the track) and the behaviour of the module if the DC information is lost.
| Parameter setting for numOfUsedCams | Number of cams used | Interrupt cycle time | Behaviour if DC information is lost |
|---|---|---|---|
| 0 | 0 | 50 µs | Module changes to “safe-operational” state; the outputs are activated trough the user program |
| 1…8 | 1…8 | 80 µs | |
| 9…16 | 9…16 | 100 µs | |
| 17…32 | 17…32 | 200 µs | |
| 128 | 0 | 50 µs | Module keeps in “operational” state; the outputs are activated trough the user program |
| 129…136 | 1…8 | 80 µs | Module keeps in “operational” state; the cam switch outputs are activated according to an interpolated timing information |
| 137…144 | 9…16 | 100 µs | |
| 145…170 | 17…32 | 200 µs |
2) The parameter resolution defines the angle resolution of the track. The value gives the number of increments related to 360°; e. g. the value 36,000 corresponds to an angle resolution of 0.01°.
3) The parameter zeroShift defines the zero shift. With it the encoder can be adjusted to the mounting position. The value of zeroShift is set in encoder-increments. It is not assigned to the parameter resolution of the cam switch.
4) The parameter EncoderBitResolution defines the resolution of the used encoder (in bits), e. g. with the default setting 18 bits the encoder has 196,608 divisions.