Crawford Cdm9 950 Installation Manual -

The Crawford CDM9 operator, often paired with the ECS 950 control unit, is a high-performance drive for industrial overhead sectional doors. This manual content covers technical specifications, mechanical assembly, and initial setup procedures. 1. Technical Specifications

The CDM9 is designed for reliability in industrial environments and must be installed at least 2.5 meters above the floor. Supply Voltage: 230V AC, single phase, 50/60Hz, 2A. Capacity: CDM9: Max door weight 400 kg. CDM9 HD: Max door weight 800 kg. Operating Speed: 0.25 m/s (Standard CDM9). Protection Class: IP 55 (excluding the CEE-plug at IP 44). 2. Mechanical Installation

Mechanical assembly involves securing the drive unit to the door shaft using a torque bar system to manage operational stress. Assembling the Drive Unit:

Slide the first stop ring onto the door pivot, followed by the adapter.

Push the drive unit onto the pivot and secure it with the second stop ring. Torque Bar Mounting: Mount the torque bar onto the mechanical unit.

Install a rubber damper between the torque bar and the console to absorb vibration.

Final Adjustments: Adjust the drive unit's final position and tighten all screws to ensure a secure fit.

Disengaging Label: Permanently affix the disengaging label next to the disengaging knobs for emergency manual operation. 3. ECS 950 Control Unit Setup

The ECS 950 serves as the primary interface, featuring a "C-card" inside the lid for standard functions and a maneuvering card for wiring connections. Installation Mode:

Before starting, disengage the door and place it approximately 1.5 meters above the floor, then re-engage it.

Switch the power OFF and then ON to initiate the installation sequence. Calibration: Mark a position on the door track 1 meter above the floor. Set the SW1 switch to "ON" on the manoeuvring card.

Use "Hold-to-run" (pressing the Down button) until the rubber sealing edge aligns with your 1-meter mark.

Service Counters: The system tracks door cycles and time; the factory default for service indication is 20,000 cycles or 365 days. 4. Troubleshooting and Maintenance

Regular maintenance is recommended every 20,000 cycles to ensure the longevity of the springs and operator. crawford cdm9 950 installation manual

Common Faults: If the motor is non-responsive, check the X4 and X5 contacts in the control box lid and verify that the operator is not disengaged.

Status Indicators: The ECS 950 display will show error codes (e.g., E07 for overheating) to guide technicians.

Component Replacement: If the unit fails to start after verifying voltages (e.g., 24V AC between X1:7 and X1:3/X1:5), the power or processor cards may require replacement.

For detailed wiring diagrams or a complete service tool manual, refer to ASSA ABLOY Entrance Systems or official digital repositories like Scribd.

Crawford CDM9 operator combined with the 950 Door Control System

is a heavy-duty industrial door system. Below are the critical installation and setup steps sourced from official technical guides. Assa Abloy 1. Drive Unit Installation Assembling the Drive:

Fit the first stop ring onto the pivot, place the adapter onto the pivot, and push the drive unit on. Finalizing Attachment:

Fit the second stop ring and mount the torque bar onto the mechanical unit. Install the rubber damper between the torque bar and the console. Placement Height:

The operator must be installed at least 2.5 meters above the floor. Tightening:

Adjust the drive unit position and tighten all screws before proceeding to electrical setup. Hurð ehf. 2. Initial Programming & Calibration (ECS 950)

Calibration must be performed using the control box buttons. Hurð ehf. Preparation:

Disengage the door, manually position it 1.5 meters above the floor, and re-engage it. Power Cycle: Switch the power off and then back on. Reference Point:

Mark a "1 meter position" above the floor on the door track. Activate Setup: Set internal switch Alignment: The Crawford CDM9 operator, often paired with the

Use the Up/Down buttons in hold-to-run mode to align the door's bottom seal with your 1-meter mark. Force Profile:

Squeeze the rubber sealing edge hard by hand and release; LED indicators (D4/D5) should briefly switch off to confirm the pressure was sensed. 3. Operational Testing Automatic Learning:

Press "Down." The door will move slowly to the floor by impulse, then automatically reverse to the fully open position to learn its limits. Safety Check:

Ensure the door reverses if it encounters an obstruction during the closing cycle. Troubleshooting:

If the door only moves in "hold-to-run" mode, the encoder may be broken or the safety edge may have a fault. Key Technical Specifications CDM9 Specification Max Door Weight Standard: 400 kg Supply Voltage 230V AC, single phase, 50/60Hz Protection Class Helpful Resources: Crawford CDM9/ECS9xx English Installation Manual (ais) CDM9 ECS 950 Troubleshooting Guide (Scribd) ECS 950 Service Tool Manual (Scribd) electrical wiring diagram

for the control unit, or are you currently stuck on a specific error code CDM9 ECS 950 Troubleshooting Guide | PDF - Scribd

Crawford CDM9 950 system is a combination of the CDM9 operator and the ECS 950 control unit, designed for industrial overhead sectional doors. Proper installation requires precise mechanical alignment and electronic programming to ensure safety and long-term durability. Key Technical Specifications

The system is built for heavy-duty industrial use with the following parameters: Operator Models : Standard speed (0.25 m/s); max door weight 400 kg. : Heavy-duty (0.18 m/s); max weight up to 800 kg. : High speed opening (0.5 m/s). Control Unit (ECS 950)

: Operates on 230V supply voltage with 24V AC operating voltage; rated IP55 for moisture and dust resistance. Installation Height

: The operator must be installed at least 2.5 meters above the floor for safety. Installation & Assembly Steps Mounting the Drive Unit

Place the first stop ring on the pivot, then position the adapter.

Push the coupling unit onto the pivot and secure it with a second stop ring.

Mount the torsion bar and include a rubber shock absorber between the bar and the console to reduce vibration. Safety Labels Identify Power Requirements : Verify the power requirements

: A disengagement label must be permanently mounted immediately adjacent to the disengagement knobs for emergency manual operation. External Controls

: Any external buttons must be mounted at a minimum height of 1.5 m and within a direct line of sight of the door. Programming and Commissioning Programming the limits is a critical step in the setup: Initial Setup

: Turn on the "installation switch" (SW1) on the circuit board. Setting Limits

Move the door to the desired upper limit using the control panel and press the red "Stop" button to save. Move the door to the lower limit and save similarly. Completion

: Once limits are set, switch the installation toggle to "off" to resume normal operation. Troubleshooting Common Issues Potential Cause / Action Door will not start UP

Check contacts X4 and X5 in the control box lid; verify jumpers on X2 and X3. Door reverses during descent

Likely an unbalanced door or an over-sensitive "pinch guard." Check for 24V AC between X1:7 and X1:5. "Hold-to-run" mode only

Often indicates a fault in the torque guard, encoder, or control card memory. Service Lamp ON

Indicates a scheduled maintenance interval has been reached (standard: 365 days or 20,000 cycles). or specific error code definitions for the ECS 950 control unit? ASSA ABLOY Electric Gates Installation Guide - 950 Manual

Section 8: Serial Communications (Optional but Powerful)

For installations using Modbus RTU (RS-485), the manual dedicates a technical appendix. The CDM9 950 uses a 2-wire half-duplex connection.

Section 5: Step-by-Step Power-Up and Configuration

Once hardware installation is complete, the manual transitions to configuration. Do not apply load power until configuration is finalized.

3. Connecting Power

  • Identify Power Requirements: Verify the power requirements of the system and ensure that the power supply unit (PSU) can meet these needs.
  • Connect Power: Carefully connect the power supply to the controller and other system components. Follow the manual's instructions for detailed wiring diagrams.

Why the CDM9 950 Requires Precision Installation

Before opening the terminal cover, it is vital to understand what the CDM9 950 is. This device is a high-performance microprocessor-based temperature controller and power regulator. It typically manages thyristor units (SCRs) to control resistive or inductive loads. A mistake in installation does not just lead to inaccurate readings—it can cause catastrophic failure of heating elements, semiconductor blowouts, or electrical fires.

The official Crawford CDM9 950 installation manual is not merely a suggestion; it is a legal and technical roadmap. Ignoring its specifications voids warranties and compromises safety certifications (CE, UL).

Crawford CDM9/950 — Concise Installation Guide

Warning: This guide is a high-level summary. Follow the official manufacturer manual and all local electrical/safety codes. Use qualified installers for electrical and mechanical work.