Prime mover safety
WARNING!
Hazards due to insufficient prime mover protection
The engine, turbine, or other type of prime mover should be equipped with an overspeed
(over-temperature, or over-pressure, where applicable) shutdown device(s), that
operates totally independently of the prime mover control device(s) to protect against
runaway or damage to the engine, turbine, or other type of prime mover with possible
personal injury or loss of life should the mechanical-hydraulic governor(s) or electric
control(s), the actuator(s), fuel control(s), the driving mechanism(s), the linkage(s), or
the controlled device(s) fail.
Device implemented self test
this Woodward device has a self test check implemented. Permanently under control are:
• processor function and
•
• supply voltage.
•
The internal signal "self check" is aligned in series with the inverse signal »Ready for op.
OFF« parameter
. Per default (factory settings) discrete output R01 is
energized/closed if device itself is OK.
LogicsManager (LM) equation parameter
allows to customize this safety relay.
You can use the result of this equation: LM command variable "99.01 LM: Ready for op.
OFF".
Be careful in changing safety relevant settings!
CAUTION!
Uncontrolled operation due to faulty configuration
The discrete output "Ready for operation" must be wired in series with an emergency
stop function.
This means that it must be ensured that the generator circuit breaker is opened and the
engine is stopped if this discrete output is de-energized.
If the availability of the plant is important, this fault must be signaled independently from
the unit.
42
easYgen-3000XT Series
B37574
1 General Information
1.3.2 General Safety Notes
Released