Crawford Cdm9 950 Installation Manual Free Direct

The installation and setup of the Crawford CDM9 operator with the ECS 950 control unit involves mechanical mounting of the drive unit followed by a specific electronic initialization procedure. 1. Mechanical Installation

: Turn on the "installation switch" (SW1) on the circuit board. Setting Limits crawford cdm9 950 installation manual

Conclusion

• Use M3 standoffs of correct height (typically 12–15mm) to level the mech relative to your chassis. Do not over-tighten – the frame flexes easily.
• Floating suspension: The 950 uses four rubber grommets. Replace any hardened ones (OEM Philips grommets or aftermarket silicone equivalents). Do not hard-mount the mechanism to the chassis.
• Clamping puck must center exactly over the spindle. Adjust magnet strength if using a non-original clamp – weak magnets cause disc slip at high speed.

Relay Outputs (OUT1, OUT2)

• Maximum current: 3A at 250V AC for resistive loads. For inductive loads (contactors, solenoids), you must install an RC snubber (0.1µF / 100Ω) across the load. Without a snubber, the relay contacts will weld shut within weeks.
• SSR Drive (Logic Output): This is a 10V DC, 20mA signal. Do not connect it to a mechanical relay. The manual warns that reverse polarity will destroy the output transistor.

Crawford CDM9 950 Installation Manual Guide The installation and setup of the Crawford CDM9

Before beginning, ensure the power is switched OFF then ON to reset the system for a fresh installation. Use M3 standoffs of correct height (typically 12–15mm)