DrvControlDCS (FB)

FUNCTION_BLOCK DrvControlDCS

This function block can be used to control DCS drives with ABB Drives profile using direct input of status word (SW) from drive. Control word(CW) will be build by the function block according to the ABB drives profile state machine. Output ControlWord has to be send to the drive via fieldbus

Function block provides standard start/stop signals to control the drive and standard diagnosis signals are read from the drive.

InOut:

Scope	Name	Type	Initial	Comment
Input	Enable	BOOL	FALSE	1: A rising edge (Enable = TRUE) starts the operation, the output Busy goes to TRUE. All other inputs are read and considered continuously. A falling edge (Enable = FALSE) aborts the operation. During Aborting the Busy is still TRUE. Afterward all outputs are reset.
	SwitchOn	BOOL	FALSE	2: SwitchOn, TRUE = Start; FALSE = stop along currently active stop ramp - No rising edge needed to restart if AutoStart = TRUE
	Run	BOOL	FALSE	3: Start normal operation. Bit 3 on Control Word. If Run = FALSE drive stops, Stop mode depends on parametrization of the drive - no rising edge needed
	StopEmcyCoast	BOOL	TRUE	4: Low active, emergency coast stop to drive: FALSE = stop by coast, TRUE = no stop
	StopEmcyRamp	BOOL	TRUE	5: Low active, emergency ramp stop to drive: FALSE = stop by ramp, TRUE = no stop
	Reset	BOOL	FALSE	6: Reset drive faults
	AutoStart	BOOL	FALSE	7: Enables the autostart function, together with SwitchOn and Run an internal retry to restart the drive is performed steadily. Eg. after return from local control. Be careful, Drive will restart automatically! Check the settings made in the Start mode Parameter group of the drive Ex: 21.10 FlyStart in DCS800
	ControlWordB11	BOOL	FALSE	8: Bit 11 on Control Word - according to user specific drive configuration.
	ControlWordB12	BOOL	FALSE	9: Bit 12 on Control Word - according to user specific drive configuration.
	ControlWordB13	BOOL	FALSE	10: Bit 13 on Control Word - according to user specific drive configuration.
	ControlWordB14	BOOL	FALSE	11: Bit 14 on Control Word - according to user specific drive configuration.
	ControlWordB15	BOOL	FALSE	12: Bit 15 on Control Word - according to user specific drive configuration.
	StatusWord	WORD	0	13: Status Word from drive. Value must be > 0.
Output	Busy	BOOL	FALSE	1: Operation is running (while output Error is FALSE)
	Error	BOOL	FALSE	2: Operation is stopped with error (while output Busy is FALSE). This output is TRUE for at least one cycle or until Enable is set to FALSE. The output ErrorID gives more details about the error.
	ErrorID	ERROR_ID		3: Error Code
	NoConToDrive	BOOL	FALSE	4: No connection to drive can be established, StatusWord = 0
	Ready	BOOL	FALSE	5: Ready to switch on - Bit 0 in SW
	Operating	BOOL	FALSE	6: Operating - drive is modulating ready reference, Bit 2 in SW
	OnInhibited	BOOL	FALSE	7: On inhibited active - start not possible, Bit 6 in SW
	AtSetpoint	BOOL	FALSE	8: Actual value is in setpoint tolerance zone, Bit 8 in SW
	Tripped	BOOL	FALSE	9: Drive is tripped, Bit 3 in SW
	Alarm	BOOL	FALSE	10: Drive has an alarm, Bit 7 in SW
	LocalCtrl	BOOL	FALSE	11: Drive control location: Local - NOT(Bit 9) in SW (Not Remote)
	ControlWord	WORD	0	12: Control Word to be send to the drive
	Message	STRING(65)	‘’	13: Text message, state of ABB-Drives profile state machine