Besam SwingMaster CU-2 / CU-HUB Interface Wiring Diagram
LO21B/U Sensor ConfigurationOverview
This wiring diagram shows the connection of:
- Besam SwingMaster CU-2 controller
- CU-HUB interface
- LO21B/U sensor module
- Bodyguard safety sensor
- Eagle sensor
- Left and right side approach sensors
- Left and right side safety sensors for automatic swing door applications.
System Components
Master Door Controller
Besam SwingMaster CU-2
Terminal Blocks:
TB1
Terminal | Function |
1 | IMP |
2 | 0VDC |
3 | OPD |
4 | BC1 |
5 | BC2 |
6 | LOT |
7 | HLD |
8 | HNO |
9 | HNC |
10 | IHB |
TB2
Terminal | Function |
1 | 18VDC+ |
2 | 0VDC |
3 | KILL |
4 | 0VDC |
5 | 0VDC |
6 | Do Not Use |
7 | 18VAC |
8 | 18VAC |
9 | 18VAC |
Additional Connections:
- J2
- J3
- CUHUB Interface
- Sync Connection
- Right-Hand Cam
- Left-Hand Cam
- Right-Hand Motor
- Left-Hand Motor
- 2A Fuse
Slave Door Controller
A second SwingMaster CU-2 may be configured as a slave controller for paired door systems.
Sensor Wiring
Left Approach Side Scan
Terminal | Function |
1 | Power |
2 | Power |
3 | COM |
4 | N.O. |
5 | N.C. |
6 | Inhibit + |
7 | Inhibit Ground |
8 | Empty |
Left Safety Side Scan
Terminal | Function |
1 | Power |
2 | Power |
3 | COM |
4 | N.O. |
5 | N.C. |
6 | Inhibit + |
7 | Inhibit Ground |
8 | Empty |
Right Approach Side Scan
Terminal | Function |
1 | Power |
2 | Power |
3 | COM |
4 | N.O. |
5 | N.C. |
6 | Inhibit + |
7 | Inhibit Ground |
8 | Empty |
Bodyguard Sensor Connections
Terminal | Function |
1 | Power (Red) |
2 | Power (Black) |
3 | COM (White) |
4 | N.O. (Green) |
5 | N.C. |
6 | Data – (Brown) |
7 | Data + (Blue) |
Eagle Sensor Connections
Wire Color | Function |
Red | Power |
Black | Power |
White | COM |
Green | N.O. |
Brown | N.C. |
LO21B/U Sensor Module
Wiring Colors
Wire Color | Function |
Orange | HLD |
Brown | BKO |
Red | IMP |
Yellow | OPD |
Green | Range |
Blue | Low |
Violet | Hold |
Grey | Auxiliary |
White | Auxiliary |
Red/White | Auxiliary |
Black/White | Auxiliary |
Default DIP Switch Settings
Factory default DIP switch settings are shown on the diagram for the LO21B/U module.
Safety Beam Input
The safety beam input accepts:
Dry Contact Only
If not used, cap off the Black/White wire.
Hold Open Switch
Switch positions:
- OFF
- ON
- HOLD OPEN
Diagram shown in OFF position.
Installation Notes
Note 1
For simultaneous pair operation, ensure that the synchronization cable is connected between the master and slave controllers.
Note 2
Cap off the Black/White wire if it is not used.
Additional Diagram Note
The drawing includes a highlighted note:
“3 & 7 for stall”
which references specific controller terminal wiring for stall detection configuration.
Application
This configuration is intended for:
- Besam SwingMaster CU-2 automatic swing doors
- Paired or single-door installations
- BEA LO21B/U sensor systems
- Bodyguard safety sensors
- Eagle motion sensors
- Safety beam protection systems