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← TechnologyWhich issue arises when a proportional valve's integral gain is set too high?
A)Oscillation around the setpoint✓
B)Increased steady-state error
C)Slower response to setpoint changes
D)Valve stiction and hysteresis
💡 Explanation
When a proportional valve's integral gain is too high, overshoot and oscillation occur because the controller aggressively corrects errors, leading to instability. Therefore, the system oscillates. Increased error, slower response, or valve stiction result from other tuning issues or valve characteristics.
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