OPERATION CHECK
7
Be sure to perform an operation check after the optical axis adjustment.
An alarm is output
Light on
The sensor beams are
not obstructed
Light entrance due to
wrap around of the beams
(Due to light entrance caused
by reflection)
1
2
3
4
Turn off the power to the
transmitter and check that
an alarm is output.
Change the height or location of the sensor so
that the light on the detection line can be
obstructed completely.
Change over a channel or synchronized timing.
Readjust the optical axis, and move the direction
of the optical axis away from the reflection surface
within the allowable range.
(Perform this for both the transmitter and receiver)
Spill-over light entrance
No alarm is output
* It results from the same channel and the same synchronized timing settings.
If no alarm is output
Transmitter
Beep
(high pitch
beep)
Light ON
Shield the light
Shield the light
Light enters
Light enters
Spill-over
No alarm is output
No alarm is output
Wrap around
Walls, etc.
Receiver
Light entrance due to beam wraparound
Spill-over light entrance
Transmitter
Transmitter
Transmitter
Transmitter
Receiver
Receiver
Receiver
Receiver
Set Transmitter LED switch of the transmitter to [OFF] and mount the cover (housing).
When Transmitter LED switch is set to [OFF], the LED light turns off, but the upper
and lower beams are transmitted.
After the optical adjustment is completed, set Auto Gain Lock switch
to [ON] under the light beam reception condition, and wait for
approximately 5 seconds.
During this period, do not shield the optical axis.
A one-time short beep sound [Pi-] shows that the auto gain lock is
completed correctly.
(After the auto gain lock, the upper and lower LEDs light off.)
Set Reception authorization LED switch of the receiver to [OFF].
Obstruct the sensor beams near the sensor or the center
of the detection line and check that an alarm can be
output correctly.
In using the environmental output,
confirm that the environmental output
is generated when the optical axes in
both the upper and lower sections are
shielded for 20 seconds or more.
If the sound check switch is set to ON, after the auto gain lock
has been completed normally, the walk test mode is activated
for 5 minutes. The beep sound is generated in synchronization
with the alarm output.
The alarm LED lights up according to the alarm output.
After the auto gain lock is completed correctly, the walk test mode is activated
for 5 minutes regardless of whether the cover is mounted or not. During the
walk test mode, the beep sound is generated when the alarm LED lights on by
the alarm output. After approximately 5 minutes has elapsed, the walk test
mode ends. Even if Auto Gain Lock switch is not set to [ON], set Reception
authorization LED switch to [OFF] activate the walk test mode for 5 minutes.
How to set Auto Gain Lock by remote control.
The units has terminals for Auto Gain Lock by remote control.
1. Attached the housing cover of receiver side.
*Set the Auto Gain Lock switch
“OFF” and set the Auto Gain Lock terminal
“Open”
2. Change the Auto Gain Lock terminal to “Close”, and wait for 5 sec.
If a “beep” tone sounds once after 5 sec. the Auto Gain Lock is completed.
*Don’t block the optical axis while 5 sec for initialize.
The intermittent beep sound like “PiPiPi........” shows
that the beam reception volume is not enough. In this
case, the LED on the side of the insufficient reception
volume blinks. Set Auto Gain Lock switch to [OFF], and
adjust the optical axis again.
In the multi-level protection, when the light enters from
other units than the opposing transmitter, turn off the
power of the other transmitter to stop transmitting the
light beam, then set Auto Gain Lock switch to [ON].
<<Caution>>
Transmitter
ON
OFF
Transmitter LED switch
Receiver
After 5 seconds
ON
OFF
"Pi-" : PASS
"PiPiPi......" : FAIL
Auto-gain Lock
switch
Bleep
(High-pitched
tone)
