Siemens RVD110 - Actuator Pulse Lock

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Siemens Building Technologies Basic Documentation RVD110, RVD130 CE1P2381E
HVAC Products 13 Function block Actuator room heating 27.05.2004
13.6 Actuator pulse lock
This function acts on all 3-position actuators controlled by the RVD110 / RVD130.
If an actuator has received closing pulses for a total period of time that represents 5
times its running time, additional closing pulses from the controller will be suppressed.
For safety reasons, the controller delivers a closing pulse of 1 minute at 10-minute
intervals.
An opening pulse negates the pulse lock.
This function is applied to all actuators in the plant and is intended to reduce the relay
contacts’ and actuators’ wear and tear.