3-8) Ice Maker Function - Samsung RM255BABB Training Manual

OPERATING INSTRUCTIONS & INSTALLATION
3-8) ICE-MAKER Function (applies only for model with dispenser function)
This ICE-MAKER function is option specification so as to be drawn to the function explanation for relevant
model.
ICE-MAKER is model attached with unit equipment where is furnished function of automatic ice making so
that ice may be made in container inside the freezer compartment and may be drawn out by using ice
dispenser under storage status ==> The equipment.
1) Initial Operation
This is operation at initial "power on" or at that after "power off" due to electricity interruption which operation is to
restore to horizontality by revolving ice extraction motor.
1-1) At first no operation is performed for 2 seconds after initial power on or after power returns after a momentary
power outage. But after that, an initial horizontality operation of the ice extraction is performed.
2-1) Because the condition of the ice maker is unknown, first the ice extraction motor is turned in the reverse direction
to let it come to its most horizontal position possible. The judgment of horizontal position is done by the ice
extraction S/W. If this S/W is on for more than 2 seconds during the reverse rotation of the ice extraction motor,
then it is judged that the transition to the most horizontal position possible has been made and the ice extraction
motor is stopped (1). It waits a second in this condition.
3-1) Because condition 2-1) is an upset twisted condition caused by the reverse direction rotation of 2 seconds after
sensing the horizontal position, the motor revolves in the forward direction for 200 ms after ice tray S/W off (2) and
then It waits 1 second.
4-1) Finally to achieve horizontality, the ice tray motor turns again in the reverse direction but it will stop immediately if
the ice tray S/W comes on (3), which condition may be interpreted as the horizontal
5-1) The standby condition is maintained for 2 hours regardless of any conditions after Ice-Tray horizontality operation.
Therefore, under the initial power on condition, there is no movement for 2 hours except for the ice tray
horizontality operation.
6-1) Ice is made if the ice making temperature has been reached according to the ice tray temperature check after a 2
hours wait period (initial ice extraction mode).
(2)
Ice extraction
S/W
Instrumental
lock position
Horizontal position
Figure- Horizontal movement operation at initial power on of the product (referes to ice extraction S/W)
(1)
Signal generated by ice inspection lever
(3)
when returning to horizontal position
S/W cognition debounce is taken about 2 seconds
at time of reverse rotation of interval (1) so as not
to mistake this interval as horizontal position
Interval about
880ms
20
18 18
Reverse rotation : CCW
Forward rotation : CW
Instrumental
lock position
Maximum torsion point