What's in the box
Standard equipment consists of an epoxy encapsulated control module, dedicated wiring harness, dashboard display unit, a high frequency Piezo buzzer as well as relays to control the Starter Motor and Engine Stop Control Circuit. Standard engine equipment includes switches for low oil pressure, high water temperature and low coolant level (Coolant Loss)
If required, systems are available with a maximum of 5 protection circuits. Extras can include switches for engine and transmission oil temperatures and levels.
Operation
The Safestop system's uniqueness is its built in diagnostics and pre-warning functions.
If any circuit is tripped due to a pre-set parameter being exceeded, switch failure, or loss of continuity of a signal wire, the driver is alerted to the impending shut down of the engine by the appropriate circuit light and buzzer. This 10 second pre-warning allows the driver to take necessary action by moving the vehicle to the side of the road before engine power loss occurs.
The Starter Motor is isolated at the same time as the engine loses power.
The driver can "buy" a further ten seconds to move the vehicle off the road by turning the ignition switch off and then on again.
This action re-activates the Starter and the Engine Control Circuits for ten seconds.
By virtue of the priority fault circuit and the in-cab display unit, the system is self-diagnostic. If any, or all circuits trip, only one control light indicates at a time.
Downtime is reduced dramatically as the fault, which caused the breakdown, is immediately identified. When rectified, the system indicates the next fault (if present) or returns to the normal start mode.
The Safestop Engine Management System is fail-safe and any fault with the engine switches, wiring or main control module causes the engine to shut down. Simply put, if the vehicle leaves the depot the system is working.
How it works
As the ignition is turned on the red oil pressure light, the green 'Go' light and buzzer turns on. If no attempt is made to start the engine within10 seconds the 'Go' light turns off leaving the oil pressure light and the buzzer on. (A stationary engine has no oil pressure).
To reset the Auto Start override the ignition must be turned off and then on again.
This regenerates another 10 seconds of automatic override for the oil pressure circuit.
As long as the 'Go' light is on the engine control solenoid is energised and the engine will run. As soon as the engine is running and oil pressure builds up, the oil pressure light turns off, leaving the green 'Go' button on.
In the event of a fault the respective circuit light immediately turns on together with the buzzer. The 'Go' light remains on for a further 10 seconds.
After this period the 'Go' light turns off, the engine stop control closes and the engine stalls.
Only the circuit responsible for stopping the engine will be displayed.
Features
- Encapsulated Solid State Electronics
- Tamper-proof
- Vibration Resistant
- Waterproof Electronics
- Fail-Safe - If Wiring Is Tampered With Or Is Disconnected
- Self Diagnostic
- Fault Indication Display Unit
- Alarm Pre-Warning Before Power Loss
- Dedicated Wiring Harness
- National Distribution
- Nationwide 24 Hour Support/Service Via Toll Free Emergency Number In RSA