Table of Contents
Advertisement
WIRING SUMMARY
See Fig. 2 to locate connectors and other components on the controller.
Make connections to the WEB Controller in the following order.
1. With the 6-position power connector disconnected from the board, wire the power circuit to the transformer (US models) or
the power terminal block (International models). See "Power Wiring".
2. Connect communications cables. See "Communications Wiring," page 8.
3. Apply power to the unit. See "Power Up and Initial Checkout," page 9.
POWER WIRING
Building power is wired directly to the transformer supplied with the controller. There is no disconnect switch in the unit, therefore
you should wire the WEB Controller to an external switch or breaker. Some local codes require the switch to be in sight of the unit.
The switch must be capable of 120Vac (or if an International model, 240Vac), plus sufficient capacity for test equipment.
• About the transformer
• Making the power connection to the transformer
About the transformer
The WEB-645-AX (for U.S. installations) ships with a 120Vac, 50/60 Hz transformer.
The WEB-645I-AX (for International installations) ships with a 240Vac, 50/60 Hz transformer.
The transformer provides power to the controller in a 14-CT-14 configuration (28Vac center tapped). The power connector has
been disconnected for shipping.
WARNING
• Wiring is to be made to the supplied transformer. All connections should be made in accordance with national and local
electrical codes. Use copper conductors only.
• Do not power other devices from the transformer of the WEB controller. The transformer should be dedicated to
running the WEB controller.
• Do not attempt to use any other power source or otherwise defeat the isolation provided by the integral transformer. A
two-wire power source, including a 24V transformer, can cause permanent damage or greatly shorten the life of the
unit.
• Verify that neither side of the transformer's secondary winding is connected to earth ground or building neutral.
Making the power connection to the transformer
With the 6-position power connector disconnected from the controller's circuit board, unscrew the nut and locking washer and
remove the metal divider (shield) over the transformer.
NOTE: As typically required by code, high voltage "Class 1" wiring must be confined behind the transformer's enclo-
sure divider. Be sure to replace this barrier after completing the wiring. Do not pinch wires underneath the bar-
rier when re-installing the barrier.
WEB-645-AX
Using the provided wire nuts, connect 120Vac 60 Hz power to the transformer and power connector using the information in Table
1.
Type of Wire
Ungrounded—Hot
Grounded—Neutral
Grounding—Ground (Earth)
Table 1. US models—building power termination.
Building Power Source (US)
Typical Color of Wire
Black
White
Green or bare copper
WEB-645, CP-645 NETWORK CONTROLLER
Termination Point
Either wire of the 120V transformer
Other wire of the 120V transformer
Grounding stud
7
62-0432—01
Advertisement
Table of Contents
