Warner Electric CBC-450 - Manual (Page 23)

Alternate/Simultaneous Operation –
Two Wire Mode, Sinking Type Input
Devices
1. Refer to Figures 17a through 20a for various
switching devices which can be used.
2. Jumper the positive (+) inputs of the
opto- coupler Terminal Block TB-1,
Terminals 1, 3, and 5 together. Tighten
Terminals 1 and 3 securely.
3. Connect a DC power source, positive (+)
voltage to Terminal 5, TB-1.
a. Positive (+) DC if external power supply
is used or, Tighten Terminal 5 securely.
or,
b. Jumper from Terminal 7 of Terminal
Block TB-1 to Terminal 5 if internal
voltage source is used. Tighten both
Terminals 5 and 7 of Terminal Block
TB-1 securely.
4. Connect a DC power source, negative (-)
voltage to Terminal 2, TB-1.
a. Negative (-) DC of external power supply
used. Tighten Terminal 2 securely.
b. Jumper from Terminal 8 of Terminal
Block TB-1 to Terminal 2 of TB-1 if
internal voltage source is used. Tighten
Terminal 2 only at this time.
5. Connect the output side of the switching
circuit to the Channel 1 input negative side
(-) of the opto-coupler at Terminal Block
TB-1, Terminal 4.
a. Normally closed contact of mechanical
switch
b. Normally closed contact of relay contact
c. Open collector output of NPN Transistor
(normally on) for solid-state sensors
d. Collector output of NPN Transistor
(normally on) for PLC interface or
computer card
Tighten Terminal 4 of Terminal Block TB-1
securely.
NOTe: For operation of the CBC-400/CBC-450
to power up with Channel 1 output “on” in
alternate mode or both outputs “off” in
simultaneous mode, the Channel 1 input switch
must be maintained closed for mechanical
switches or “on” in the case of solid-state
switches.
6. Connect the input side of the switching circuit
when mechanical switches are used to the
negative side (-) of the DC power source.
a. External negative (-) of external DC power
source
or,
b. Negative (-) or DC common of the internal DC
power source, Terminal 8 of Terminal Block
TB-1 securely.
7. For external sensors or when using PLC output
modules or computer cards, connect power
source to sensors or cards accordingly.
a. External power source, positive (+) and
negative (-) to appropriate leads on terminals
or,
b. Internal power source, positive (+) Terminal 7,
TB-1 and negative (-) Terminal 8, TB-1 to
appropriate sensor leads of terminals. Tighten
Terminals 7 and 8 securely.
8. Optional Channel 2 Override Input Wiring
NOTe: If using the Channel 2 override input
(start override) the switching circuit must be
a maintained type so that Channel 1 input
switching will have no effect on the output
when maintained.
a. Connect the output side of the switching
circuit to the Channel 2 override input
negative side (-) of the opto-coupler at
Terminal 6 of Terminal Block TB-1.
1. Maintained switch, normally open contact
2. Normally open relay contact
P-239-23 • 819-0500 Warner Electric • 800-825-9050 23