MC_Power
|
Application: |
PLC |
SIM |
Short description:
Function that manages power supply of a given axis.
Inputs (3):
|
no. |
type |
impulse |
mark |
notes |
|
1 |
B |
no |
Enable | As long as ‘Enable’ is true, power is being enabled. |
| 2 | B | no | EnablePositive | As long as ‘Enable’ is true, this permits motion in positive direction |
| 3 | B | no | EnableNegative | As long as ‘Enable’ is true, this permits motion in negative direction |
Outputs (4):
|
no. |
type |
impulse |
mark |
notes |
|
1 |
B |
no |
Status |
Effective state of the power stage |
| 2 | B | no | Valid | If true, a valid set of outputs is available at the FB |
| 3 | B | no | Error | Signals that an error has occurred within the Function Block |
| 4 | INT | no | ErrorID | Error identification |
Settings:
|
no. |
type |
mark |
notes |
| 1 | INT | AxisID | associated axis number |
Operation description:
- The ‘Enable’ input enables the power stage in the drive and not the FB itself
- If the MC_Power FB is called with the ‘Enable’ = TRUE while being in ‘Disabled’, the axis state changes to ‘Standstill’.
- It is possible to set an error variable when the Command is TRUE for a while and the Status remains false with a Timer FB and an AND Function (with inverted Status input). It indicates that there is a hardware problem with the power stage.
- If power fails (also during operation) it will generate a transition to the ‘ErrorStop’ state.
- ‘EnablePositive’ and ‘EnableNegative’ are both level sensitive.
- ‘EnablePositive’ & ‘EnableNegative’ can both be true.
- Only 1 FB MC_Power should be issued per axis.
R registers and M markers used: none