Honeywell SmartVFD HVAC MR4 User Manual page 148

HVAC A
PPLICATION
M3.12.1.9 D
EAD BAND HYSTERESIS
M3.12.1.10 D
EAD BAND DELAY
The PID controller output is locked if the actual value stays within the deadband area around
the reference for a predefined time. This function will prevent unnecessary movement and wear
on actuators, e.g. valves.
Dead band (M3.12.1.9)
Dead band delay (M3.12.1.10)
Figure 17. Dead band
Reference
Output locked
Honeywell
• 76
Actual value
100K18.fh11