Switch User Manual

Publication 1783-UM002C-EN-P - April 2009 41
Chapter 2
Do not strip more than 6.8 mm (0.27 in.) of insulation from the wire. Stripping
more than the recommended amount of wire can leave exposed wire from the
connector after installation.
5. Insert the exposed part of the positive wire into the connection labeled
V and the exposed part of the return wire into the connection labeled
RT.
Make sure that you cannot see any wire lead. Only wire with insulation
should extend from the connector.
6. Use a ratcheting-torque screwdriver to torque the power and relay
connector captive screws (above the installed wire leads) to 0.23 N•m
(2.0 lb•in.).
7. Connect the other end of the positive wire (the one connected to V) to
the positive terminal on the DC power source, and connect the other
end of the return wire (the one connected to RT) to the return terminal
on the DC power source.
8. If you are installing the switch and are using a second power source,
repeat steps 3...7 with a second power and relay connector.
TIP
You can use a second power source to provide redundant
power.The alarm relays on the switch can be used to warn you
if one of the power supplies fails. The switch will operate
properly with only one power source connected at either Pwr A
or Pwr B.
ATTENTION
If multiple power sources are used, do not exceed the specified
isolation voltage.
31784-M
6.8 mm (0.27 in.)
VRTA A
31785-M
V
RT