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3M-Matic 800rf Case Sealer Theory of Operation
Copyright 1999, 3M IPC. All rights reserved. 5-9
Table 5-2. Sequence Table Fixed Mode (continued)
SEQUENCE FIXED MODE PLC VALVE ACTION OUTPUT INPUT
IF T2 TIMED OUT PROGRAM GOES
TO STEP 6
STEP 6
SIDE DRIVE ASSEMBLY LOCKS LATCH V2 TURN ON 0
START T5 (15.0 SEC), CYCLE
TIMER NONE
IF PADDLE SWITCH IS MADE PROGRAM GOES
TO STEP 7 10
STEP 7
FORK UNLATCH V11 MOVES DOWN 7
START T8 (0.5 SEC) NONE
IF PHOTOCELL PC2 IS BLOCKED OR PROGRAM GOES
NOT BLOCKED TO STEP 8
STEP 8
IF PHOTOCELL PC2 IS NOT
BLOCKED (SHORT BOX)
FOLDER ARM LATCH V9 MOVES DOWN 2
FOLDER ARM REED SWITCH
IS MADE 16
REAR FLAP FOLDER LATCH V10 MOVES DOWN 11
T8 TIMED OUT
SIDE DRIVE MOTORS LATCH TURN ON 1
IF PHOTOCELL PC2 IS BLOCKED
AND T8 TIMED OUT (LONG BOX)
SIDE DRIVE MOTORS LATCH TURN ON 1
PHOTOCELL PC2 IS CLEARED
FOLDER ARM LATCH V9 MOVES DOWN 2
FOLDER ARM REED SWITCH
IS MADE 16
REAR FLAP FOLDER LATCH V10 MOVES DOWN 11
IF PHOTOCELL PC5 IS BLOCKED PROGRAM GOES
TO STEP 9 8
STEP 9
FOLDER ARM UNLATCH V9 MOVES UP 2
REAR FLAP FOLDER UNLATCH V10 MOVES UP 11
SIDE DRIVE ASSEMBLY LOCKS UNLATCH V2 UNLOCK 0
IF PHOTOCELL PC5 IS CLEARED PROGRAM GOES
TO STEP 10 8
STEP 10
PADDLE LATCH V7 MOVES UP 6
RETURN TO STEP 1