Application examples

COMPAX-M/S

External data record selection

 

To move one particular workpiece to the data collection station, the number of the station in question is first set on the BCD switch. The process is then triggered by a start pulse. To do this, the BCD switch setting must remain the same until the start of the first axis movement. The lowered workpiece pick-up is positioned under the station which is specified by the BCD switch. When the workpiece pick-up is raised, the front workpiece is taken out of the station. The axis returns to the data collection station. The workpiece pick-up is lowered there. The workpiece is thereby deposited in the data collection station. COMPAX now waits for the next transportation process.

Programming:

Configuration:

P93 =+1 i.e. normal operating mode (absolute and relative positioning)

Names of inputs and outputs:

I7

pick-up raised

0 # no

1

# yes

I8

pick-up lowered

0 # no

1

# yes

O7

raise pick-up

0 # off

1

# on

O8

lower pick-up

0 # off

1

# on

List of programs:

 

N001: SPEED 50

;sets the speed

N002: ACCEL 500

;sets the acceleration and braking ramps

N003: OUTPUT O7=0

;pick-up raise function = off

N004: OUTPUT O8=0

;pick-up lowering function = off

N005: POSA -60

;moves to data collection station

N006: IF I8=0 GOSUB deposits workpiece (36). ;if pick-up is not lowered: deposits workpiece

Wait for START:

;mark

N007: WAIT START

;waits for the start pulse

N008: GOSUB EXT

;calls up the corresponding inputs I9-I16 for the sub-program

N009: GOSUB raises workpiece (32)

;calls "Raise workpiece" sub-program

N010: POSA -60

;proceeds to data collection station

N011: GOSUB deposits workpiece (36)

;calls up "Deposit workpiece" sub-program

N012: GOTO waits for START (7)

;goes to data record N007

...........................................................................

;Link table for external data record selection

N016: POSA 120

;proceeds to station 0

N017: RETURN

;returns to main program

N018: POSA 240

;proceeds to station 1

N019: RETURN

;returns to main program

N020: POSA 360

;proceeds to station 2

N021: RETURN

;returns to main program

N022: POSA 480

;proceeds to station 3

N023: RETURN

;returns to main program

N024: POSA 600

;proceeds to station 4

N025: RETURN

;returns to main program

N026: POSA 720

;proceeds to station 5

N027: RETURN

;returns to main program

N028: POSA 840

;proceeds to station 6

N029: RETURN

;returns to main program

N030: POSA 960

;proceeds to station 7

N031: RETURN

;returns to main program

Raise workpiece :

;mark

N032: OUTPUT O7=1

;activates "Raise" solenoid valve

N033: IF I7=0 GOTO 33

;waits until workpiece pick-up is raised

N034: OUTPUT O7=0

;deactivates "Raise" solenoid valve

N035: RETURN

;returns to main program

Deposit workpiece :

;mark

N036: OUTPUT O8=1

;activates "Lower" solenoid valve

N037: IF I8=0 GOTO 37

;waits until the workpiece pick-up is lowered

N038: OUTPUT O8=0

;deactivates "Lower" solenoid valve

N039: RETURN

;returns to main program

228

Page 228
Image 228
Parker  Products COMPAX-M /-S (L) manual Programming, Configuration, Names of inputs and outputs, List of programs