Nortech PD160 Enhanced Series, Руководство пользователя

Страница: 14 / 39

304UM0001 Rev 00 PD160 Enhanced Series User Manual Page: 14 of 39
Setting
Presence Detect
Fault
Pulse Detect
Un-Detect
Fault
Pulse Width 50ms
150ms
250ms
500ms
750ms
900ms
1sec
2sec
Delay Output 0sec (off)
100ms
250ms
500ms
1second
2seconds
5seconds
10seconds
Polarity
(fail safe / secure)
3.2.5.1 Relay Pulse Width
Under the pulse sub-section of the relay menu, pulse widths range
from 50ms to 2seconds and can be different on each relay.
Short pulses are used in responsive systems where higher speed
outputs can be individually processed, or limited to a shorter period of
time than the time the vehicle remains over the loop. Longer pulses
may be used where the output required is longer than the time the
vehicle remains over the loop.
3.2.5.2 Relay Output Delay (Filter)
From the relay menu, the delay time (filter) setting ranges from zero
(off) to 10 seconds and allows the output to be delayed accordingly.
By setting a non-zero delay, the output delay feature is turned on.
Small unwanted objects may be filtered out as a vehicle has to be
present over the loop for the full duration of the delay in order to
produce an output.
The delay time may be applied on any sensitivity level and may be different on each relay. It may also
be used on either presence or pulse output.