Wintriss wpc 2000, User Manual

Page: 66 / 250

WPC 2000 User Manual 1128500
Installation 2-39
1.
Remove the TB2 through TB5 connectors (for cam channel 1 through cam channel 4)
from the cam output board and wire them as follows, referring to Figure 2-19:
•
Connect one wire to the terminal labelled “C”
•
Connect the other wire to the terminal labelled “N/O” if you want your equipment to be
“on” during the cam angle interval set in WPC 2000
or
Connect the other wire to the terminal labelled “N/C” if you want your equipment to be
“on” except during the cam angle interval set in WPC 2000
2.
Plug TB2 through TB5 back into the Cam Output board.
3.
To reduce electrical noise and extend the life of the relays, do the following:
a. Install arc suppressors across each inductive AC load (motors, coils, etc.) that is
connected to a cam relay. Suppressors are supplied with your WPC 2000 cam outputs.
Install the suppressors across the load or as close to the load as possible. Attach
suppressors by connecting leads across existing terminals or junction points.
Figure 2-20, page 2-40 shows the correct way to install suppressors.
b. Install a diode across each DC load, such as relays, solenoids and PLC inputs, as
shown in Figure 2-21, page 2-40.
Generally, you use the N/O terminal so that equipment is “off” except when you use WPC
2000 to turn it “on.” Use the N/C terminal only if it is more practical to do the reverse.
Figure 2-19. Connectors TB2 through TB5 on Cam Output Board
SUPPRESSORS INSTALLED ACROSS RELAY CONTACTS
DO NOT install suppressors across the relay contacts in the cam output assembly. If a
suppressor is installed across the relay contacts and the relay fails shorted, the equipment
controlled by that relay will remain energized.
Failure to comply with these instructions could result in death or serious injury.
NOTICE
N/O C N/C N/O C N/C N/O C N/C N/O C N/C
CHAN 1 CHAN 2
TB3 TB2
CHAN 3 CHAN 4
TB4 TB5
WARNING
!