Honeywell SYA14 Series Manual page 563

3. Installation
3.1 Overview
This chapter contains information about possible applications and properly installing
muting sensors.
3.2 Sensors installation
3.2.1 Use in the conveyor mode
The conveyor mode can be used on machines automatically fed by a conveyor belt. On
such machines, the muting module FF-SRM can be used to mute the light curtain while
parts are conveyed through the light curtain detection field, and to allow automatic
loading without causing the immediate stoppage of the machine.
FACTORY SETTINGS
•
The muting module is set in the conveyor mode on delivery.
•
The maximum timing tmax allowed between SM sensors is set to 1 s on delivery. It
can be modified to the following values : 2 s, 4 s, or 8 s
• The setting of the timing tmax also sets the muting maximum duration ∆max. In the conveyor
mode (delivery setting), the muting duration is set to 2 mn (factory settings). It can be modified to
the following values : 4, 8 or 60 mn.
•
Refer to chapter 2.4.2 SM inputs, to select tmax and ∆max.
On a conveyor application, the FF-SRM muting module can be used to perform either
a two-direction muting or a one-way muting :
Two-direction muting using 2 sensors
In the following example, two thru-scan (or retro-polarised) photoelectric controls SM1
& SM2 are used to start the muting sequence whatever the direction of the movement
of the objects (correct operation of these sensors is monitored by the muting module).
The muting of the protective equipment is allowed when the detected objects enter
and leave the dangerous area. This installation is recommended on applications
where the entry and exit points of the material into the dangerous zone are the same.
107004-15 EN FR26 ROW 0899 Printed in France 29