Omega Vehicle Security LVCN700 Series Wiring, Troubleshooting, Step Fourteen, Step Fifteen

WIRING

Step Fourteen

Warning

To prevent damaging the relays, the use of an appropriate motor starter or secondary relay is ALWAYS recommended when actuating pumps or valves.

A. Wiring a LVCN700 series (95-250 VAC) to a Pump (Automatic Fill or Empty) and (Independent High and Low) Alarms

HOT VAC

NEUTRAL INPUT

High Alarm

TROUBLESHOOTING

Step Fifteen

A. Power LED SOLID GREEN in RUN Mode: During normal operation in the RUN mode, the Power LED will remain solid GREEN indicating that the switch has power and is tracking the level. The RED Relay LEDs will be ON or OFF as programmed per the cur- rent level state.

							L1 L2
	RELAY		RELAY		RELAY	POWER
1		2		3
			RED			Green
	(Solid ON or OFF)					(Solid ON)

B. Power LED AMBER in RUN Mode: If while in the RUN mode, the Power LED turns solid AMBER, this indicates that the switch has

			L1 L2
RELAY	RELAY	RELAY	POWER
1	2	3	VAC

Cal. Run

HighLow

Select

Motor Starter

(Pump)

Low Alarm

NEUTRAL VAC

HOT INPUT

power, but is not tracking the level and has entered into it’s FAIL- SAFE mode. Coincidently, all Relay LEDs will be OFF, indicating that the relays are in their de-energized safe-state. The switch will remain in the FAIL-SAFE mode until such time that it re-acquires the level and automatically returns to normal operation as programmed. Check the following points in determining why the switch is not tracking the level:

B. Wiring a LVCN700-DC (12-28 VDC) to a Pump (Automatic Fill or Empty) and (Independent High and Low) Alarms

HOT VDC

NEUTRAL INPUT

		L1 L2
RELAY	RELAY	RELAY POWER
1	2	3
	RED	Amber
	(All OFF)	(Solid ON)

			(+) (-)
RELAY	RELAY	RELAY POWER
1	2	3	VDC
	Cal.	Run
High			Low
	Select

High Alarm

Motor Starter

(Pump)

Low Alarm

NEUTRAL VDC

HOT INPUT

Application 1. Observe and attempt to correlate an application event such as foaming, substantial vapor and/or turbulence that may reduce or eliminate the acoustic signal strength. Read the Maximum Applied Range (Step #4-E) and consider rein- stalling the switch in a Stand-Pipe (Step #11-A-4) to dampen turbulence and/or separate the point of measurement from surface foam and/or vapor.

Installation 2. Verify the switch is installed correctly per the INSTALLATION section (Step #11) of this manu- al. Initially focus on the fitting and/or obstructions within the beam that may reduce or eliminate the

C. Wiring a LVCN700 (95-250 VAC) to Pumps (Duplex or Alternating) and Alarm (Out of Bounds, High or Low)

acoustic signal transmission-receipt. Consider changing the fitting or relocating the switch to another area of the tank.

			L1 L2
RELAY	RELAY	RELAY	POWER
1	2	3	VAC
	Cal.	Run
High		Low
	Select

HOT VAC NEUTRAL INPUT

Alarm

Motor Starter

(Pump 1)

Motor Starter

(Pump 2)

NEUTRAL VAC

HOT INPUT

Duplex/Alternation

3.Verify that the tank height is not greater than the maximum range of the switch. If so, purchase and install a switch with the appropriate range for your tank height or level distance.

C.Relay LED Changes State, But Relay Doesn’t Change:

Verify that the switch is wired correctly per the WIRING section (Step #12) of this manual. If so, the Relays may have been damaged due to a high inductive load or carbon build-up over time.