AEB 551 adjustable safety relay

Description
Safety device used to close the gas solenoid valves if the engine should accidentally stall.

Safety Relay for use in single-point induction systems where the change-over switch does not provide the safety function. It requires a pulsed signal to turn on the output voltage.

Tech. Specifications

• Power supply voltage 10÷14 Vdc
• Trimmer for adjusting the initial priming time

Certifications

• E3-10R-036293
• E13-67R-010066
• E3-110R-006040

Package contents

• Device
• Bag of accessories
• Instructions

1. Ignition coil
   This gives a signal when the engine is running.
2. Mass
   This is the Min Pool.
3. Incoming plus connection
   You connect this to the coil of the evaporator and the gas valve.
4. Outgoing plus connection
   You connect this to the Petrol/Gas switch.

When you switch on the ignition, "PIN 3" gets a moment of power so that the gas valve opens and the evaporator supplies gas so you can start. You can set the duration of this moment in the middle (0-5 seconds). It will only receive this power if the Petrol/Gas switch is in the GAS position "PIN 4". If the switch is set to petrol, "PIN 3" will never receive power.

If the ignition coil gives a signal "PIN 1" (so as soon as the motor is running), "PIN 3" will receive permanent current, and the gas valve remains open.