90-9214 Dynamic Brake Modification (M5 Mod)
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90-9214 Dynamic Brake Modification (M5 Mod) is available for shipping.
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Description
Description
Provides active electrical braking in the form of DC current to stop the motor. Acts as a stopping brake only, not a holding brake. This modification is considered most useful on gear-reduced door operators (GT, GH) where the gear reducer may help act as a holding brake or where a solenoid brake is not desired. It is also recommended for use when extremely high braking requirements are anticipated.May be used in conjunction with a solenoid brake. Normally provided in a separate wall-mounted enclosure to be mounted near, and field connected to the door operator. A dynamic brake is standard on NEMA 4, 12 rated (M103), NEMA 4X rated (M104), NEMA 7/9 rated (M105) and Variable Speed (M37) modifications, and includes a Delay-on-Reverse Circuit (M60). Because of space requirements this modification cannot be used with many options without also adding a Wall-Mounted Starter. Must be factory installed. Starter panel modification only.
NOTE: See NEMA 4 rated modifications for Logic 5.0 options.
