Synchronous Operation - HOKUYO AUTOMATIC UST-05LN User Manual

5.3 Synchronous operation

When operating two or more UST units within a short distance mutual interference may occur. To prevent
mutual interference between them, the rotation of the USTs can be synchronized. A maximum of 3 UST units
can be operated by delaying the rotation by 90 degrees (however, this cannot guarantee 100% prevention of
mutual interference, depending upon the installation condition, background condition, etc., of each UST. If
interference cannot be avoided verify before operation) during this operation, one master and a maximum of
two slaves can be set.
During initial shipment the UST is set as master, so it is necessary to configure a sensor as slave.
Configuration of each UST is done through the Area Designer.
Example of connection is shown in figure 5-8.
UST
(Slave)
UST
(Slave)
UST
(Master)
Figure 5-8 Example of Synchronization wiring (in case of 3 UST)
34
COM Input +
Synchronous Input
COM Input +
Synchronous Input
Synchronous Output
COM Output -
Document No: C-41-02490-9
DC12V/DC24V
Power
supply
0 V