Diagnostics: System Diagnostics 65
DIAGNOSTICS
PMW HEALTH TEST - EXAMPLE RESULTS
Good Control Performance. Example of pwm control valve performing well with good response hysteresis.
Curves do not have significant areas of flat spots, and go over a large portion of the Control Effort Duty Cycle
% range.
Good Control Range. Example of pwm valve having good overall control range and a large difference (>20%
overall range) between minimum and maximum Control Effort Duty Cycle %. Apply suggested changes to
optimize control range for the system.
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