This document describes the Norton 5900 Series Power Operator, an automatic door opening solution designed for pedestrian swing doors. The manual provides comprehensive instructions for installation, operation, and troubleshooting, ensuring safe and efficient use.
Function Description:
The Norton 5900 Series Power Operator is an electromechanical device that automates the opening and closing of pedestrian swing doors. It is designed to provide controlled and accessible entry and exit, suitable for various commercial and institutional settings. The operator utilizes a motor and spring mechanism to manage door movement, offering both power-assisted opening and spring-controlled closing.
The core components of the system include the operator unit (5900MOT), a main control unit (5900CM), and a back plate for mounting. Electrical power is supplied via a 120VAC connection. The system incorporates an On/Off/Hold Open switch for basic control and accepts various activation inputs, such as push plates, access control systems, and safety mats. A cover (5900COV) and cover cap protect the internal components, while a door stop (5900DS) is essential for preventing damage to the door or adjacent walls by limiting the maximum opening angle.
The operator can be configured for both PUSH and PULL side applications, with specific mounting diagrams provided for each. For PUSH side installations (5930), the arm pushes the door open. For PULL side installations, rigid arm and slide track (5910) or double egress arm (5950) configurations are available, where the arm pulls the door open.
The main control unit is the brain of the operator, featuring an encoder for precise door position sensing and a motor for driving the arm. It includes various terminals for connecting accessories and external controls, such as activation switches, locking devices, and synchronization cables for double doors. Dip switches on the main control board allow for configuration of arm system settings, including "Stop on Stall" (SOS), "Safety Mat" (MAT), and "Push & Go" (PAG) functions. An auxiliary control board provides additional functionality, including latch speed control, lock release, and fail-secure/fail-safe options.
Usage Features:
The 5900 Series Operator offers several features to enhance usability and safety:
- Activation Methods: The operator can be activated via push plates, access control systems, or safety mats. It also supports a "Push to Activate" mode, where a manual push (or pull) of 5° initiates automatic opening to the full open position.
- Adjustable Operation Parameters: Users can adjust various parameters to customize door behavior. These include:
- Opening Speed: The speed at which the door opens.
- Closing Speed: The speed at which the door closes.
- Hold Open Time: The duration the door remains open after activation. This is adjustable via a potentiometer on the main control unit.
- Spring Tension (SPTE): This potentiometer controls the spring force, influencing both opening and closing characteristics. Adjusting the spring tension allows for fine-tuning the door's resistance and power assist.
- Closing Force (CLTQ): This parameter affects the force with which the door closes.
- Latch Speed: Controls the speed during the final degrees of closing, ensuring proper latching.
- Lock Release: This feature, configurable via a DIP switch on the auxiliary control board, can be activated during the opening delay to free the latchbolt, particularly useful for paired doors where the master door releases first.
- Auto-Teach Function: The operator features an auto-teach function, initiated by pushing the "LRN Teach button." This process automatically sets the backcheck and latch positions, simplifying initial setup. During auto-teach, the backcheck is adjusted to 10° and 1 second before the open position, and the latch is adjusted to 10° and 1.5 seconds before the closed position. It is crucial to ensure the door is properly closed before starting the auto-teach procedure.
- Obstruction Detection: The system is designed to detect obstructions during opening. If an obstruction is encountered, the door can either stall (continue trying to open during the hold open time) or stop (close after 2 seconds, even if the hold open time has not expired), depending on the DIP switch setting.
- Safety Features: The operator emphasizes safety, requiring a door stop to prevent over-opening beyond 110°. The manual also warns users to remain clear of the swing path during auto-learn cycles, as the door may close rapidly without safety mechanisms active. Overhead presence devices can be added for an extra layer of protection, although they are not mandated by current ANSI/BHMA A156.19 codes.
- Double Door Synchronization: For double door installations, a sync cable (P/N: 59000CAB) can be used to synchronize the operation of two operators, designating one as master and the other as slave. The manual provides detailed instructions on how to cut jumpers for various door designs (e.g., astragal, jamming, no jamming) and how to configure settings for master and slave units.
- Error Indication: The control unit includes an "Error LED" that illuminates during normal operation. A flashing LED indicates a fault, with different flash patterns corresponding to specific errors (e.g., external sensor error, control unit defective, encoder error, locking device defective, motor overheated). This allows for quick diagnosis of operational issues.
Maintenance Features:
Maintenance of the Norton 5900 Series Power Operator is primarily intended for authorized personnel due to the complexity of the internal components.
- Regular Checks: To ensure correct operation, periodic checks are recommended. These include inspecting wire connections, verifying the tightness of arm connections and screws, and checking for wear and tear on hinges and pivots. The frequency of these checks depends on factors such as traffic volume, climate, and other environmental conditions.
- Troubleshooting Guide: The manual provides a comprehensive troubleshooting table that lists common faults, their possible reasons, and corresponding remedies or explanations. This guide assists authorized personnel in diagnosing and resolving issues such as the door not opening, the motor not starting, the door not closing, or unknown spring tension.
- No User-Serviceable Parts: The manual explicitly states that there are no user-serviceable parts within the operator. This underscores the importance of having authorized personnel perform any maintenance or repairs.
- Technical Support: For assistance, users are directed to contact Norton Technical Product Support, providing a dedicated channel for expert help.
- Power Disconnection: Before any servicing, it is crucial to disconnect power to the operator to prevent injury or damage.
In summary, the Norton 5900 Series Power Operator is a robust and configurable solution for automating pedestrian swing doors, offering a balance of functionality, safety, and ease of adjustment for various applications.
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