Warner Electric CBC-450 - Manual (Page 32)

Alternate/Simultaneous Operation –
Three Wire Mode, Sourcing Type Input
Devices
1. Refer to Figures 21a through 24a for various
switching devices which can be used.
2. Jumper the negative (-) inputs of the opto-
coupler Terminal Block TB-1, Terminals 2, 4,
and 6 together. Tighten Terminals 2 and 4
securely at this time. Snug Terminal 6 only.
3. Connect a DC power source, negative
voltage or DC Common to Terminal 6 of
Terminal Block TB-1.
a. Negative (-) DC or DC common of
external power supply is used. Tighten
Terminal 6 of Terminal Block TB-1.
or,
b. DC Common negative (-) of internal
voltage source terminal 8 of Terminal
Block TB-1 to Terminal 6 of TB-1.
Tighten both Terminals 6 and 8 of
TB-1 at this time.
4. Connect the output side of the switching
circuit being used to the Channel 2 input
(start) positive side (+) of the opto-coupler
at Terminal 1 of Terminal Block TB-1.
a. Momentary switch contact
(normally open)
b. Normally open contact of form “C” Relay
c. Open collector output of PNP Transistor
from solid-state sensors
d. Collector of PNP output module from a
PLC interface or computer card.
Tighten Terminal 1 of Terminal Block TB-1
securely.
NOTe: With the exception of the relay
contact in 4b above, all other outputs or
switches must be momentary in nature.
5. Connect the input side of the switching cir-
cuits if momentary switches or relay contact
was used to the positive side (+) of the DC
power source.
a. External positive (+) if external DC power
source is used.
or,
b. Positive side (+) of the internal DC power
supply, Terminal 7 of Terminal Block TB-1.
6. Connect the output side of the switching
circuit (stop) being used to the Channel 1
input positive side (+) of the opto-coupler at
Terminal 3 of Terminal Block TB-1.
a. Momentary switch contact (normally open)
b. Normally closed relay contact of form “c”
relay
c. Open collector output of PNP Transistor
for solid-state sensors
d. Collector of PNP Output Module for PLC
interface or computer card
Tighten Terminal 3 of Terminal Block TB-1
securely.
NOTe: With the exception of the relay
contact in 6b above, all other outputs or
switches must be momentary in nature.
7. Connect the input side of the switching circuit
of momentary switches or relay contact if
used to the positive side (+) of the DC power
source.
a. External positive (+) of external DC voltage
source is used.
or,
b. Positive side (+) of the internal DC voltage
source at Terminal 7 of Terminal Block
TB-1.
32 Warner Electric • 800-825-9050 P-239-23 • 819-0500