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10
LM900006 Rev 0_3
Electrical
Step Five
VAC POWER INPUT WIRING:
Observe the labeling on the controller.
Note: Polarity does not matter with the AC input terminal.
RELAY INPUT
WIRING:
The relay is a single pole, double throw type rated at 250 Volts AC, 16 Amps. The terminals Normally Open
(NO) and Normally Closed (NC) will be used in different applications. Remember that the "normal" state is
when the relay coil is de-energized and the Red relay LED is OFF (de-energized).
A typical application for the Smart Trak™ with Compact Relay Controller is to operate a pump or valve
between the two set points (automatic fill or empty). In this application, a pump or valve can be wired to either
the Normally Open (NO) or Normally Closed (NC) side of the relay. In the example below, power to the Smart
Trak™ is not shown.
STROBE ALERT OUTPUT:
The Smart Trak™ features a latching controller primarily designed for automatic filling or emptying of a tank or
sump. If the Strobe Alert was added to your package, it can be wired to either indicate that the tank is
emptying or filling. Example, if a pump is wired to empty the tank, then wiring the strobe to the same terminal
(NO or NC) as the pump will have the light flash when the pump is active. Wiring to the opposite terminal as
the pump will have the light flash when the pump is not active.
Note: The latching relay within the controller
prevents the Strobe from switching when a high or level is reached.