Nexen Size 18 964102 - Manual (Page 8)

8 FORM NO. L-20245-C-1099
6. Tighten the Pan Head Screws holding the Limit Switch
Bracket (See Figure 10).
7. Repeat Steps 3 through 6 for the second Limit Switch.
8. Set the AE120 Power Switch to OFF.
1. Remove the two Screws located on the front panel of the
AE120 (See Figure 12).
2. Slide the AE120 chassis out of the housing.
3. Set the Fine Adjustment Control to 5.00 (mid-travel)
(See Figure 12).
4. Using the Photo Head Selector Switch located on the
front panel, select either the right or left Photo Head
(See Figure 12).
5. Insert a piece of material until it completely covers the
Photo Head sensing area; then, remove the material.
The Error Indicator Array light will show maximum and
minimum insertion (up to five red lamps on either side of
the green lamp) (See Figures 12 and 13).
6. Rotate the Photo Head Balance pot (PHB1 For the left
Photo head and PHB2 for the right Photo Head) until the
insertion and removal of material lights an equal number
of red lamps on either side of the green lamp on the Error
Indicator Array (See Figures 12 and 14).
7. Rotate the GAIN (GAIN 1 for the left Photo Head and
GAIN 2 for the right Photo Head) until the insertion of
material lights five red lamps in either direction (See
Figures 12 and 14).
FIGURE 12
FIGURE 13
FIGURE 14
CENTER POSITION CONTROL (CPC) CALIBRATION
NOTE
Center Position Control (CPC) requires both left and
right Photo Heads.
1. Calibrate both Photo Heads for Edge Position Control
(EPC) (See EDGE POSITION CONTROL (EPC)
CALIBRATION, Page 8).
2. Set the Photo Head Selector Switch to Center Position
Control (CPC) (See Figure 15).
FIGURE 15
Web
Photo
Head
Photo
Head
Web
Minimum
Insertion
Maximum
Insertion
LAMP PH B1 GAIN 1 PH B2 GAIN 2 OUTPUT F. ADJ C. ZERO C. GAIN
PHB1 GAIN 1 PHB2 GAIN 2
Photo Head
Selector Switch
MODEL
AE120
MAN
CENTER
AUTO AUTO
POWER
ON LEFT
CPC
RIGHT
MAN
EDGE POSITION CONTROL (EPC) CALIBRATION
Fine Adjustment
Control
Error Indicator Array
MODEL
AE120
MAN
CENTER
AUTO AUTO
POWER
ON LEFT
CPC
RIGHT
MAN
Photo Head
Selector Switch
Remove
Screw
Remove
Screw