User Guide

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA

Multi-Function Technology

Operation

Control Accuracy and Stability

(AMQ / NMQ / LMQ / AHQ / LHQ)

Belimo Quick Running non-spring return actuators are designed with a

unique non-symmetrical deadband. The actuator follows an increasing or

decreasing control signal with a 40 mV resolution. If the signal changes

in the opposite direction, the actuator will not respond until the control

signal changes by 100 mV. This allows these actuators to track even the

slightest deviation very accurately, yet allowing the actuator to “wait” for a

much larger change in control signal due to control signal instability.

Satisfied

Control Position

Minimum

Control Resolution

40 mV

Actuator responds to a 40 mV signal when

not changing direction from stop position.

Satisfied

Control Position

Minimum Reversed

Control Deadband

Prior to Normal Control

100 mV

Actuator responds to a 100 mV signal when

reversing direction from stop position.

All Belimo actuators have built-in

brushless DC motors which provide better

accuracy and longer service life.