Lenze E94P PositionServo with MVOB - Manual (Page 87)

PM94H201B_13xxxxxx_EN L 85
Reference
Table 25: DEFINE
DEFINE Define name Pseudo-statement
Purpose DEFINE is used to define symbolic names for User Variables, constants, and Digital I/O for
programming convenience. Define statements greatly enhance program understanding by allowing
the user to program using symbolic strings (names) relevant to their application. DEFINE can be used
also to substitute a symbolic string.
Syntax DEFINE
name any symbolic string
synonym User Variable, constant, or Digital I/O Flag that symbolic string will represent
Remarks: DEFINE statements can be located anywhere within the user program (with the exception of events
and the fault handler). Normally practice however is to place definitions at the start of the program
prior to any executable code.
See Also
Example:
Define Start_Button IN_B1 ; Define a Digital Input
Define System_Stop Out2 ; Define a Digital Output
Define Loop_Counter V5 ; Define a User Variable
Define Loop_Increment 1 ; Define a Constant Value
Program_Start: ; Label Program Start
If Start_Button == 0 ; If input B1 is off
Disable ; Disable Servo
System_Stop = 1 ; Turn on Output 2
Else ; Otherwise
System_Stop = 0 ; Turn off Output 2
Enable ; Enable Servo
MoveD 10 ; Move (increment) Distance 10
Loop_Counter = Loop_Counter + Loop_Increment ; Increment Variable V5 by 1
Endif
Goto Program_Start ; Goto Label Program_Start
Table 26: DISABLE
DISABLE Disables the drive Statement
Purpose DISABLE turns OFF the drive output to the motor. Drive shows ‘Dis’ on display when in a disabled
state.
Syntax DISABLE
Remarks Once the DISABLE statement is executed, the power to the motor is turned off and the motor can
move freely. When disabled the drive will continue to monitor feedback and the actual position
variable (APOS) will continue to update with the current position of the motor. The target position
variable (TPOS) will be updated with the value of the actual position variable (APOS) on Enable to
prevent unexpected motion from the motor shaft.
See Also ENABLE
WARNING!
Work should not be carried out on the drive/system without the drive first being isolated from its mains
supply. The disabled condition is not an indication that the motor or system is safe to work on as an
Enable/run condition could result from execution of the programmers programming code, from a host
interface, or controller.
Example:
If Start_Button == 0 ; If input B1 is off
Disable ; Disable Servo
Else ; Otherwise
Enable ; Enable Servo
MoveD 10 ; Move (increment) Distance 10
Endif