For MACO USE ONLY

DC motorDC motorshaft Rotor

magnetstator Stator

wiring

Fig. DC Fan motor construction

Motor PWBFig. Wiring of DC motor

Vm ; motor voltage input Vcc ; Control power voltage inputGND ; gndVs ; Speed control voltage input FG ; Revolution pulse output

Mold resin

Over heat protection starts at 125±15over.

2-12 V DC

For MACO USE ONLY

1. 1. Indoor DC Fan motor (type A) Indoor DC Fan motor (type A)

Fig. Wiring from PWB①Power voltage input (Vm /red)② NC③GND (Gnd /black)④Control signal (Vcc /white)⑤Speed control signal (Vsp /yellow)⑥Revolution output (Vfg /blue)

Measuring point Resistance when normal

- (Vcc - Gnd) 25 kΩ or higher - (Vsp - Gnd) 200 kΩ or higher - (Vm - Gnd) 25 MΩ or higher

4 3

1 3

5 3

Indoor DC Motor Part no.SSA512T072ASSA512T081SSA512T092 1

For MACO USE ONLY

22. Outdoor DC Fan motor (type D). Outdoor DC Fan motor (type D)

Fig. Wiring from PWB① Revolution output (Vfg /blue)② Speed control signal (Vsp /yellow) ③ Control signal (Vcc /white)④ GND (Gnd /black)⑤ NC ⑥ Power voltage input (Vm /red)

ZG model

Measuring point Resistance when normal

- (Vcc - Gnd) 25 kΩ or higher - (Vsp - Gnd) 200 kΩ or higher - (Vm - Gnd) 25 MΩ or higher

3 4

2 4

6 4

Outdoor DC Motor Part no.SSA512T075

SSA512T091ASSA512T094 1

For MACO USE ONLY

DMCT Checker procedure

1. Turn motor by hand, if hard reject (motor faulty) , if easy go to step 22. Check resistance each wire by digital meter ,compare with standard value3. Running check by DMCT, confirm V DC output from DMCT.

3. Check by DC motor checker2. Check resistance each wire by digital meter ,compare with standard value

1

For MACO USE ONLY

Analysis DC motor improvementBEFORE AFTER

Only check by digitalmeter, measuredresistance each wire,compare with standard

- Difficult to judgment-Up to many type of Digital meter.-Up to experience eachService man

1st

check resistance of each wire if pass go to check step 2

nd

2nd

check by dc motor checker.Running test condition.

-Easy and fast to judgment.-It can guarantee 100% to separate good dc motor before change.

1