Rockwell Automation 42CRC Color Registration Control - Manual (Page 8)

6
42CRC Color Registration Control
level, and is easier to set up in the manual operation mode. The control
must be set in the manual mode when the “test points” are used to check
for sufficient sensing contrast (see “Contrast Check” on page 9.) In this
position the orange LED marked “AUTO” will be “OFF” and the manual
sensitivity adjustment is functional. Switch positions for this mode are B,
B , D, D , F, F , H, H .
f. Red or Green Light Sources
The 42CRC Control has both a red and a green LED light source. The
function switch permits selection of one or the other LED. The LED selec-
tion guide, Figure 8 on page 9, lists which LED to use with some basic
mark and background color combinations.
To select the proper light source for colors not listed in Figure 8, make a
Contrast Check as described on page 13. Test the mark/background with
each LED and select the one that provides the maximum mark to back-
ground voltage change.
The red LED corresponds with switch positions A, A , B, B , E, E , and F,
F . The Green LED corresponds with switch positions C, C , D, D , G,
G , and H, H .
FIGURE 5
AUTOMATIC/MANUAL
INDICATOR
ORANGE LED
“ON” IN AUTOMATIC
MODE
MARGIN INDICATOR
GREEN LED
“ON” WHEN OPERATING
MARGIN IS AT
LEAST 2 TO 1
OUTPUT INDICATOR
RED LED
“ON” WHEN THE CONTROL
OUTPUT IS “ON”
TEST POINTS
TO CHECK
MARK CONTRAST
SENSITIVITY
ADJUSTMENT
(MANUAL MODE) FUNCTION SELECTOR SWITCH
OUTPUT DWELL TIME
ADJUSTMENT
(NON-LATCH MODE)
INTERCHANGE
LENS AND CAP
TO CHANGE
SENSING DIRECTION
QUICK-DISCONNECT
Cable Assembly
E E
F
F
G C
D
DWELL 8 SENS 1
WHITE- GATE (- ) / RESET (+)
ORANGE- DIAG. ALARM
BLACK- NEGATIVE
RED- POSITIVE
BLUE- OUTPUT
SUPPLY OUTPUT
ALARM SCANNING
42CRC--4000
PHOTOSWITCH
COLOR
REGISTRATION
CONTROL
4D 30vDC 70MA MAX
100MA 30VDC MAX N.O. NPN 51NK
20MA 30VDC MAX
MODE
7 6
9 5
3 0
8
2
4
0
1 2 3
4
5
6
7 9
A
B
C
D
G
H
H
A
B
AUTO
MARGIN
SIGNAL
TEST POINTS
Operating Mode
(Continued)