WG20 Instructions 21
Normally the recognition of the devices connected to the ECSBus and
the STOP input takes place during the installation stage. However, if new
devices are added or old ones removed, the learning process can be
gone through again by proceeding as follows:
1 On the control unit, press the P2 [B] button and hold it down for at least
three seconds, then release it.
2 Wait a few seconds for the control unit to finish recognizing the
devices.
3 When the recognition stage is completed the P2 LED [A] should go off.
If the P2 LED flashes it means that something is wrong; see paragraph
5.5 "Troubleshooting".
4 After you have added or removed any devices, the automation system
must be tested again according to the directions contained in paragraph
3.7.1 "Testing".
5.3.3
Recognition of Other Devices
B
A
Figure 63
5.3.4
Addition of Optional Photocells
Additional photocells can be installed at any time on top of those
supplied with WG20. In an automation system for 2-leaf gates these can
be arranged as shown in Figure 64.
To ensure the correct recognition of the photocells by the control unit, the
former must be assigned addresses by means of jumpers. The address
allocation procedure must be performed on TX as well as RX (arranging the
jumpers in the same manner), but you must make sure that there are no other
pairs of photocells having the same address.
The photocells need to be assigned addresses to make sure that they are
correctly recognized among the other ECSBus devices, and in order to
assign the performed function.
1 Open the shell of the photocell.
2 Identify the position where they are installed based on figure 64 and
connect with jumper according to Table 11.
The unused jumpers must be stored in their proper compartment for
future use (Figure 65).
3 Perform the recognition stage as explained in paragraph 5.3.3
"Recognition of other devices".
Figure 64
Table 11
Photocell h=50cm;
activated when gate
closes
A
Photocell h=100cm;
activated when gate closes
B
C
Photocell h=50cm;
activated when gate opens
or closes
Photocell h=100cm; activated
when gate opens or closes
D
Photocell to the right
activated when gate opens
Photocell to the left
activated when gate opens
F
Photocell
Jumpers
Jumpers
Photocell
E
Figure 65
