Warner Electric CBC-450 - Manual (Page 33)

8. For external sensors or when using PLC
output modules or computer cards,
connect power to sensors or cards
accordingly.
a. External DC power source, positive
(+) and negative (-) to sensor or card
power leads per appropriate
installation instructions.
or,
b. Internal DC power source, positive
(+) Terminal 7 of Terminal Block TB-1
and negative (-) or DC Common
Terminal 8 of Terminal Block TB-1.
Make sure terminals are snugged.
9. Optional Channel 2 Override Input
Switching
NOTe: If using the Channel 2 override
input (start override) the switching
circuit must be a maintained type so
that Channel 1 and Channel 2 input
switching will have no effect on output
switching.
a. Connect the output side of the
switching circuit to the Channel 2
override input positive side (+) of the
opto-coupler at Terminal 5 of
Terminal Block TB-1.
1. Maintained switch, normally open
contact
2. Normally open relay contact
3. Open collector output of PNP
Transistor from PLC output
module or computer card.
Tighten Terminal 5 of Terminal Block
TB-1.
b. Connect the input side of the
Channel 2 override switch to positive
side (+) of the power source.
1. External DC positive (+) of the external DC
power source.
or,
2. Positive (+) of the internal DC voltage source,
Terminal 7 of Terminal Block
TB-1.
10. Double check all input switching circuit wiring and
hook-ups to insure proper wiring and connections.
Refer to figures 21a through 24a.
11. Make sure all terminal block connections on TB-1
are securely tightened at this time.
12. Double check any external wiring connections for
hook-up and connections. Refer to the appropriate
data sheets for confirmation.
13. This completes the input switching and wiring
connections. Make sure all debris, insulation
chips or wire fragments are cleaned up and
control circuit boards blown off with dry air
before proceeding.
14. Proceed to the start up section of the manual for
start up and check out.
1
2
3
4
5
6
7
8
Channel 2
Input
+12 VDC
START
STOP
START
OVERRIDE
DC COM
+
-
Channel 1
Input
+
-
Channel 2
Override
+
-
TB-1
Figure 21a
P-239-23 • 819-0500 Warner Electric • 800-825-9050 33