12
Turn on the power to the transmitter and receiver. When adjusting beam alignment, please select “Mode selector” to “Alignment” check that the
LEDs of both the transmitter and receiver units are lit.
4
Check the status of the alarm LED and sensitivity attenuation LED on the receiver.
Refer to the table below, and take an appropriate measurement.
5
Adjust the optical axis in order to realize higher accuracy. Be sure to perform using one of the following methods.
6
“Optical Axis Fine Adjustment Using the Sound Check”
: The sound check function is used to describe the light reception level using high and low pitch tones.
“Optical Axis Fine Adjustment Using the Monitor Output Voltage”
: Checking the light reception level value using the monitor output voltage will ensure greater accuracy during optical axis adjustment.
“Optical Axis Fine Adjustment Using the Wireless Alignment Checker”
: Checking the light reception level value using the alignment voltage will ensure greater accuracy during optical axis adjustment.
: The light reception level value can also be monitored from the transmitter.
: For more details on how to operate the wireless alignment checker, refer to the ER-02 instruction manual.
LED status
Description of the Display
Remedy
Receiv
er
•
Upper/lower transmission/reception
authorization LED: Lit
•
Alarm LED: Off
•
Sensitivity attenuation LED: Off
①
The optical axis adjustment has been
almost aligned.
①
Go to step
6
and fi ne adjust the optical
axis
(Adjust the upper and lower levels individual-
ly again)
•
Upper/lower transmission/reception
authorization LED: Lit
•
Alarm LED: Lit
•
Sensitivity attenuation LED: Off
①
Different channels are set for the trans-
mitter and receiver
②
Interference between
the photoelectric
beams
①
Set the same channel for the transmitter and
receiver
②
Change to a channel that is not infl uenced
by other factors
•
Upper/lower transmission/reception
authorization LED: Lit
•
Alarm LED: Off
•
Sensitivity attenuation LED: Lit
①
The light enters the receiver, but the light
reception level is insuffi cient (The optical
axis is misaligned)
②
The protection distance setting is not
appropriate
①
Go to step
6
and fi ne adjust the optical
axis
(Adjust the upper and lower levels individual-
ly again)
②
Set the appropriate protection distance
•
Upper/lower transmission/reception
authorization LED: Lit
•
Alarm LED: Lit
•
Sensitivity attenuation LED: Lit
①
The light does not enter the receiver at all
(The optical axis is not adjusted correctly)
①
Go back to step
1
and adjust the optical
axis again
Names of operation section
Lit
Transmitter
Lit
Receiver
Note: This section describes the name and function of each part used during optical axis adjustment.
Upper transmission LED/reception authorization LED
Lower transmission LED/reception authorization LED
Each time the switch is pressed, the optical unit switches.
Transmitter
Receiver
Upper/lower changeover switch
Alarm LED
Note: Only available on
the receiver
• Lights up when an
alarm is output.
Sensitivity attenuation
LED
Note: Only available on
the receiver
• Lights up when the
sensitivity is
insufficient.
The corresponding LED lights up
when the transmission/reception is
authorized. (Upper and/or lower can
be switched by the upper/lower
changeover switch.)
Transmit from both upper and lower
Only transmit
from upper
Only transmit
from lower
No transmission
Received on both upper/lower
Only received on lower
Only received on upper
Each time the switch is pressed, the optical unit switches.
Monitor jack Note: Only available on the receiver
• The monitor output voltage can be checked by using a commercially available tester.
Sound check switch Note: Only available on the receiver
• Beam reception level can be checked by the sound tone.
In the walk test mode, the beep sound is generated according to the alarm output.
Mode Selector : When adjustment, set “Alignment”, When operation, set “Operation”.
When adjusting beam alignment, please
select “Mode selector” to “Alignment” on
both the transmitter and the receiver in
order to adjust the beam alignment
accurately.
