Crawford Cdm9 950 Installation Manual Top May 2026

Because the disc is placed manually, radial alignment of the disc center to the spindle is critical:

End of Paper

| Connector | Signal | Mating cable | Note | |-----------|--------|--------------|------| | J1 (flex) | Laser diode, focus/tracking coils, HF | 14-pin 0.5 mm pitch FPC | Match pin 1 marking | | J2 | Spindle motor (±) | Twisted pair, 28 AWG | Polarity: Red (+) to motor + | | J3 | End switch (S1) | 2-pin | Normally open; closes when swing arm at rest | | J4 | Ground | Single wire | To system ground star point |

Important: The CDM9/950 uses a swing-arm actuator. Do NOT apply power to the tracking coil unless the servo loop is active – the arm may crash.

Installing and setting up a Crawford CDM9 operator with a 950 control system requires a specific sequence of mechanical assembly and electronic limit-setting to ensure safe operation. 1. Mechanical Drive Unit Assembly

To mount the drive unit correctly, follow these physical assembly steps:

Fit Stop Rings: Place the first stop ring onto the pivot, followed by the adapter.

Mount the Operator: Push the drive unit onto the pivot and secure it with the second stop ring.

Install Torque Bar: Mount the torque bar onto the mechanical unit, ensuring the rubber damper is placed between the torque bar and the console.

Final Adjustment: Align the unit position and tighten all screws securely. 2. Control System Wiring (ECS 950)

The ECS 950 control box connects to the CDM9 operator via internal cards: crawford cdm9 950 installation manual top

Processor Card: Located inside the operator's rear lid; it contains the frequency converter.

Voltage Check: Ensure 24V AC is present between terminals X1:7 and X1:5 for the Up button, and X1:7 and X1:3 for the Down button.

External Connections: Safety devices like photocells or the pneumatic safety edge are connected to the maneuvering PCB (e.g., terminal X8). 3. Electronic Installation & Limit Setting

Crucial: The power MUST be switched OFF and then ON immediately before beginning this installation sequence.

Initial Position: Disengage the door, manually place it 1.5m above the floor, and re-engage it.

Marking: Mark a reference point exactly 1m above the floor on the door track. Menu Activation: Switch SW1 to "ON" on the control board.

Setting the Mark: Use the Up/Down buttons in "hold-to-run" mode until the door's rubber sealing edge aligns perfectly with your 1m mark. Impulse Calibration:

For Standard (SL) tracks: Use short pressure on the installation device to trigger a slow impulse move to the floor, where the door will reverse and open fully to calibrate its range.

For High (HL) or Vertical (VL) tracks: The door moves down by impulse; you must press STOP when the top section reaches the middle of the rail bend before completing the cycle. 4. Limit Switch & Clutch Adjustment

Upper Limit: Controlled by a magnetic sensor in the side column; adjust it so the door stops at the fully open position.

Sliding Clutch: If the door fails to move or is too sensitive, adjust the lock nuts and thrust washer. Removing a ring increases the sliding force by roughly 10-15kg. Because the disc is placed manually, radial alignment

For detailed technical diagrams and full terminal layouts, you can consult the official Crawford CDM9 950 Wiring Diagram or the ECS 950 Service Manual. ASSA ABLOY Electric Gates Installation Guide - 950 Manual

The Crawford CDM9 operator combined with the ECS 950 control box is a standard automation system for industrial overhead sectional doors. Proper installation is critical for safety and operational longevity, as these units are typically installed at a minimum height of 2.5 meters above the floor. Essential Technical Specifications

Before starting, ensure your hardware matches the requirements for the Crawford CDM9: Motor Power: 0.37 kW. Torque: Approximately 60 Nm. Shaft Compatibility: Designed for 35 mm hexagonal shafts.

Control System: Uses the ECS 950 control unit, which features an integrated service indicator and cycle counter. Step-by-Step Installation Overview

Technical documents such as the Crawford CDM9 Installation Guide detail the following primary assembly steps: Assembling the Drive Unit:

Fit the first stop ring onto the pivot, followed by the adapter.

Push the drive unit onto the pivot and secure it with the second stop ring. Mounting Hardware: Attach the torque bar to the mechanical unit.

Install the rubber damper between the torque bar and the console to absorb vibration. Adjust the final position and tighten all screws. Initial Door Positioning: Disconnect power before beginning.

Unhook the door and secure it at a height of 1.5 meters above the ground.

Mark a reference point 1 meter above the floor on the door frame for limit setting. System Programming and Setup

The ECS 950 control box requires specific Programming Steps to define door travel: End of Paper

Installation Mode: Turn the installation switch (SW1) to the ON position.

Setting Limits: Use the up and down buttons to move the door to its desired end positions. The system utilizes an internal encoder to track position; if this encoder fails, the door will default to a "hold-to-run" safety mode.

Service Intervals: The factory default for service indication is 365 days or 20,000 cycles. These can be reset or adjusted using a specialized service tool connected to the processor board. Troubleshooting Common Issues

If the operator fails to start, verify the following according to the Troubleshooting Guide:

Disengagement: Check if the manual disengagement handle has been pulled.

Power Supply: Confirm 230V AC is reaching the mechanical unit.

Stop Circuit: LED indicators D8 and D9 on the maneuvering PCB should both be lit to indicate a closed (functional) stop circuit.

Torque Guard: If the door is unbalanced, the torque guard may trigger, forcing the door into hold-to-run mode for both opening and closing.

For detailed wiring and part-specific repairs, professional technicians often refer to the ECS 950 Service Tool Manual for deep diagnostics and error log access. 587859590-Trouble-Shooting-Guide-CDM-9-920-930-950-Uk.pdf

587859590-Trouble-Shooting-Guide-CDM-9-920-930-950-Uk.pdf * 1. Operator CDM9 Trouble ShootingGuide (all types) CDM 9 ECS 920, 930, Slideshare

ECS 950 Service Tool Manual | PDF | Menu (Computing) - Scribd

Before handing over the door to the customer, verify the following: