Danfoss AK2-SC 255, Reference Manual, Page: 113 / 206

112 AK2-SC 255 Reference Manual RS.8D.M1.22
timer will start.
Schd or photo: For this point to be on, either of two
conditions must be satisfied: (1) the schedule must be
true; or (2) the photocell must be above trip level.
Once one of those two conditions is satisfied, the pre-
delay timer will start.
Enable failsafe schedule (List box: Yes, No) Whether or not a schedule will
“back up” in case the photocell fails.
Time on (Time of day field) The time at which the pre-delay
timer for outside lights will start without the photocell
having tripped.
Time off (Time of day field) The time at which the post-delay
timer for the outside lights will start without the photo-
cell rising above trip level.
Photocell range +/- (0 to100) The number of percent from night to day.
Trip Level (0 to100) The level at which the photocell condition
will be true and act to turn the lights on. (If multiple
relays are configured, there will be one trip level per
relay.)
Always keep 1 relay on (List box: Yes, No) (Appears only when there is more
than one control relay) Whether or not one relay will
always be on.
Auto rotate selection (List box: Yes, No) Whether or not the one relay kept
on will rotate among all the relays configured. Rotation
takes place so that the same relay is not used when the
zone cycles off.
Lighting configuration
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Pre delay (0 to 120) When lights are off, the number of minutes
that the lighting condition must be satisfied before lights
will be turned on.
Post delay (0 to 120) When lights are on, the number of minutes
that the lighting condition must be false before lights