Alean SM-HWDS-Z11 User Manual - Page 7

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Failure (phenomenon)

Indicator is off after power on

The alarm indicator does not turn on after the

beam is completely blocked, and no alarm

output.

The beam is not blocked, the alarm indicator is

always on, and there is alarm output

False alarm

Cause

1. No voltage on power line

2. Open or short circuit

3. Ex ceeding the specified voltage

4. The power line ex ceeds the specified length

1. There are reflectors or other transmitters entering

the receiver

2. The beam is not blacked

3. The blocking time is setting too long

4. Alarm output wiring is incorrect

1. Beams are not aligned and the optical ax es do

not coincide

2. Obstacles between transmitter and receiver

3. The transmitter or receiver housing is very dirty

or covered with snow, frost, or ice

4. No transmitter output

1. Wiring or power supply fluctuations,line

corrosion

2. There are moving obstacles, such as birds,

newspapers, leaves, etc.

3. The installation base is unstable

4. Not perfectly aligned

Countermeasure

1. Check the power adapter

2. Check the line

3. Replace the adapter

4. Replace the power line

1. Remove reflectors or turn off other emitters and

realign

2. Ensure the beam is completely blocked

3. Reduced blocking time

4. Check the receiver terminals and output wiring

1. Recalibrate the optical ax is

2. Check the obstacles

3. Clean the cover

4. Check the transmitter power supply current and

wiring

1. Replace power supply, current and wiring

2. Change installation location

3. Reinforce the base or choose a solid installation

base

4. Recalibrate the optical ax is