Silan

Semiconductors

SC2128A

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2000.12.31

10

11. SLEEP WIND MODE

In sleep wind mode, the wind speed steps down

automatically one level every 30 minutes, until it reaches

low wind level. If no off-timer is set, SC2128A keeps in

low wind level. Otherwise, it restores off state when

off-timer times out. To enter sleep wind mode, turn on

the fan by SPEED key first. Adjust to desired LO, MI, ST

wind speed. Press MODE key twice to bring SC2128A

to LOW, MIDDLE or STRONG sleep wind mode as the

LO, MI, ST wind speed set before entering sleep wind

mode. Press MODE key in sleep wind mode forces

SC2128A to leave sleep wind mode and enter rhythm

sleep wind mode.

LO

MI

ST

t=0

t=0.5hr

t=1.0hr

timer timeout

hours

Middle sleep mode wind pattern

LO

MI

ST

t=0

t=0.5hr

t=1.0hr

timer timeout

hours

Strong sleep mode wind pattern

LO

MI

ST

t=0

t=0.5hr

t=1.0hr

timer timeout

hours

Low sleep mode wind pattern

12. RHYTHM SLEEP WIND MODE

Pressing MODE key in sleep wind mode brings

SC2128A into rhythm sleep wind. In rhythm sleep wind

mode, SC2128A outputs LOW, MIDDLE or STRONG

rhythm wind pattern and automatically steps down one

level every 30 minutes until it reaches low rhythm wind

level. If no off-timer is set, SC2128A keeps in low rhythm

wind output. Otherwise it restores off state when the

off-timer times out.

t=0

t=0.5hr t=1.0hr

timer timeout

hours

Middle rhythm sleep mode wind pattern

Strong rhythm wind

t=0

t=0.5hr t=1.0hr

timer timeout

hours

Strong rhythm sleep mode wind pattern

t=0

t=0.5hr t=1.0hr

timer timeout

hours

Low rhythm sleep mode wind pattern

Middle rhythm wind

Low rhythm wind

Strong rhythm wind

Middle rhythm wind

Low rhythm wind

Strong rhythm wind

Middle rhythm wind

Low rhythm wind

13. MEMORY MODE

SC2128A features on-chip operation memory, in which operation state may be stored. OFF/MEMS key also

functions as a special MEMS(memory start) key. If this key is pressed when SC2128A is in off state, SC2128A is

activated into the operation mode stored in the operation memory. After power on, the operation memory is

initialized as follows:

middle speed, ordinary wind, none off-timer setting, SO1 and SO2 swing head outputs both

off, LIT output off.

Operation memory memorizes the following:

(1)

SPEED

low, middle or strong,

(2)

MODE

ordinary, rhythm, sleep or rhythm sleep.

(3)

OFF-TIMER:

off-timer setting,

(4)

SWING HEAD

SO1 and SO2 output state,

(5)

LIGHT

LIT output status.

If the fan is turned on by SPEED key, subsequent adjustments to the fan operation either from pannel key or

from remote control handset do not affect the operation memory. If, however, the fan is turned on by MEMS, the

subsequent adjustments to speed, mode, off-timer, SO1, SO2 and LIT output will update the operation memory to