Electrical Shock Hazard
Can cause severe injury, death or property damage.
•
The high and low voltage connections are not safe to touch. Protection against electric shock is provided by
correct installation.
•
Control voltage cabling should be maximum 10m, screened (if not screened then less than 1m, however
servomotors can be unscreened up to 10m)
•
Any cabling over 10m must have additional surge protection.
•
Low voltage cables should be screened (shielded) cable as specified in section 1.4.6.
•
The burner ‘High Limit Stat’ must be a manual reset type.
•
All external safety devices that require manual reset must be reset external to the Autoflame system and prior
to completing the recycling interlock.
The cover (back plate) of the Flame Safeguard controller must always be re-fitted after the wiring is completed to
prevent access to the electric shock hazard areas, unauthorised wiring modifications or fuse replacement.
1.4.3
Internal Hardware Status Monitoring
The Flame Safeguard controller analyses the integrity of the internal hardware and diagnostics values for key
parameters are available.
The relay safety checks are carried out during every startup sequence and their progress will be displayed on the
screen.
1.4.4
Input Checks
All system input circuits are examined to assure that the Flame Safeguard controller is capable of recognising the
true status of external controls, limits and interlocks. If any input fails this test, a safety shutdown occurs and the fault
will be logged.
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