Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 - Manual (Page 203)

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Pulse Outputs Section 7-6
Linear Mode
Operation A target value can be set at a desired pulse output PV to execute an interrupt
task when the target value is reached. An ACC(888) or SPED(885) instruction
can be programmed in the interrupt task to perform speed control at that tar-
get value.
Frequency
(speed)
Target value 5
Target value 4
Target value 3
Target value 2
Target value 1
Speed
(frequency)
Pulse output PV
Time
Controlled by
ACC instruction.