NORD Drivesystems BU0550 - Manual (Page 59)

3 AWL (Instruction List, IL)
BU 0550 GB-0813 59
3.5.2.11 MC_ReadActualPos
Continually supplies the actual position of the frequency inverter if ENABLE is set to 1. As soon as a valid
actual position is present at the output, VALID is set to valid. In case of error, ERROR is set to 1 and in this
case VALID is 0.
Position scaling: 1 motor revolution = 1000
Table 82 MC:ReadActualPos
3.5.2.12 MC_Reset
Resets an error in the frequency inverter (error acknowledgement) with a rising flank from EXECUTE. In
case of error, ERROR is set to 1 and the cause of the error is entered in ERRORID. All errors are reset with
a negative flank on EXECUTE.
Table 83 MC_Reset
3.5.2.13 MC_Stop
With a rising flank (0 to 1) the frequency inverter is set to the status STANDINGSTILL. All currently active
Motion functions are aborted. The frequency inverter brakes to 0Hz and switches off the output stage. As
long as the Stop command is active (EXECUTE = 1), all other Motion Fbs are blocked. The BUSY output
becomes active with the rising flank on EXECUTE and remains active until there is a falling flank on
EXECUTE.
Table 84 MC_Stop
VAR_INPUT VAR_OUTPUT
Input Explanation Type Output Explanation Type
ENABLE Enable BOOL VALID Output is valid BOOL
ERROR Error in FB BOOL
POSITION Actual position of the FI DINT
VAR_INPUT VAR_OUTPUT
Input Explanation Type Output Explanation Type
EXECUTE Start BOOL DONE FI error reset BOOL
BUSY Reset process is still active BOOL
ERROR Error in FB BOOL
ERRORID Error code INT
ERRORID Explanation
0 No error
1001h Stop function is active
1700h An error reset could not be performed, because the cause of the error is still present.
VAR_INPUT VAR_OUTPUT
Input Explanation Type Output Explanation Type
EXECUTE Start BOOL DONE Command has been executed BOOL
BUSY Command is active BOOL