Besam 4000 Automatic Door System
88 Control Wiring Reference
Overview
The Besam 4000 automatic sliding door system uses the 88 Control Unit to manage:
- Door activation
- Safety inputs
- Hold-open functionality
- Locking devices
- Emergency operation
- Speed control
- Key impulse activation
- Photocell safety monitoring
The system integrates with multiple external devices including motion sensors, photocells, locking systems, and emergency units.
Main Components
Component | Description |
Control Unit | Main operating controller |
Power Supply | System transformer and power management |
Emergency Unit | Emergency opening/closing system |
Revolution Counter | Door movement monitoring |
Locking Device | Electromechanical lock control |
Photocells | Safety beam monitoring |
Motion Sensors | Activation sensors |
Push Button | Manual activation input |
Motion Sensor Connections
The Besam 4000 supports:
- Commander (RB1)
- Selectscan
- Intelliscan
- PIR / Microwave activation sensors
Photocell Configurations
Supported Modes
Configuration | Description |
PHO FS No.2 OFF | Photocell inactive |
PHO FS No.2 ON | Photocell active |
PHC FS No.2 OFF | Alternate photocell configuration |
Notes
- Only 4-wire photocells with transmitters and receivers are compatible
- Refer to MK IIIA FS No.2 documentation for additional setup details
Terminal Block Connections
TB1 Connections
Terminal | Function |
1–2 | 15–20V DC Power |
3–4 | Inner Impulse |
5–6 | Outer Impulse |
7–8 | Key Impulse |
9–16 | Control & sensor inputs |
TB2 Connections
Terminal | Function |
17–18 | Hold Open |
19–22 | Stop Function |
Sensor Wiring
Wire Color Reference
Color | Function |
Red | Power |
Black | Common / Ground |
Green | Signal |
White | Signal |
Yellow | Auxiliary |
Blue | Auxiliary |
Impulse Inputs
The system includes multiple activation inputs.
Inner Impulse
Used for:
- Interior activation sensors
- Push plates
- Motion detectors
Outer Impulse
Used for:
- Exterior motion activation
- Approach detection
Key Impulse
Used for:
- Key switch activation
- Secure access control
- Timed entry systems
Hold Open Function
The Hold Open input allows the door to remain open continuously during:
- High traffic periods
- Maintenance
- Emergency operation
Stop Function
The Stop Function input immediately halts door movement for:
- Safety shutdown
- Emergency stop control
- Maintenance lockout
Emergency Unit
The emergency unit provides:
- Emergency opening
- Emergency closing
- Backup operational control
Emergency Unit Inputs
Terminal | Function |
B1 | Emergency Control |
B2 | Emergency Control |
Locking Device Integration
The system supports an external locking device connection.
Main Lock Connector
Wire | Function |
Main | Lock Power |
GND | Ground |
+ / – | Control Voltage |
Power Supply Specifications
Specification | Value |
Main Power | 115 VAC |
Main Fuse | 4A |
Control Fuse | 1.5T |
Control Unit Settings
Speed Configuration
Setting | Description |
HSO | High-Speed Opening |
HSC | High-Speed Closing |
LSO | Low-Speed Opening |
LSC | Low-Speed Closing |
TO | Partial Open Time |
MP | Manual Open Time |
Automatic Reset Feature
The Besam 4000 includes an automatic reset system.
Function
If no voltage is applied to the motor relay for approximately 10 seconds:
- The computer automatically resets
Wiring Notes
- Ensure proper grounding before startup
- Disconnect locking devices before servicing
- Verify photocell polarity during installation
- Confirm all impulse inputs are properly isolated
- Use recommended wire gauges for all control wiring
Recommended Cable Sizes
Connection | Cable Specification |
Main Power | 3 AWG 14 |
Sensor Inputs | 4-wire low voltage |
Push Button | Standard control cable |
Locking Device | Shielded control cable recommended |
Safety Recommendations
- Disconnect power before servicing
- Verify stop function operation during startup
- Test all photocells before operation
- Confirm emergency unit operation after installation
- Inspect locking device operation regularly
Common System Functions
Door Opening Sequence
- Activation signal received
- Control unit energizes motor
- Door opens to programmed position
- Safety systems remain active
Door Closing Sequence
- Timer expires or command received
- Motor reverses direction
- Door closes to limit position
- Locking device engages if installed
Maintenance Recommendations
- Inspect terminal connections periodically
- Verify fuse condition
- Test hold-open functionality
- Confirm emergency operation
- Clean photocell lenses regularly