6. Installation
Manual for installation and operation, Comfort 870 GB (#81125) 29
Advice:
If a closing prevention device (photo-
cell, timer, …) is connected to XB99,
the controls will recognise it automati-
cally after “Mains On” (contact SB34
must be closed).
The photocell can be deactivated later
(Level 8 / Menu 1).
When the contacts of a closing
prevention device are open, the gate
can no longer be closed.
Additional external control elements,
and safety and signal devices with 24 V
connections must be connected to
XB99/B9 and XH01/16.
Label Type / function
XB99 External control elements
3 Intermediate position
5 Stop
8 Impulse
34 Closing prevention device
B9
+ 24 V DC
X1 External receiver
1
Connection of potential-free normally open
contact
2
Connection of potential-free normally open
contact
+ + 24 V DC
- GND
S1
Normally open contact, receiver,
potential-free
XH01 Connection of control unit output
15 Wiping impulse 24 V
16 GND
17 Programmable output
Connection option 3:
- External radio receiver
