Control system for fire door and a door operator having the same

A control system for a fire door, comprising:

• a fire door actuating module for actuating the fire door;
• the fire door actuating module comprises an electromagnetic module secured to a stationary frame, and a brake disc assembly coupled to the fire door;
• a first control module electrically connected with the fire door actuating module for controlling operation of the fire door actuating module;
• and
• a second control module electrically connected with the first control module and the fire door actuating module;
• wherein the second control module is configured to monitor operation of the first control module and controls the operation of the fire door actuating module when the operation of the first control module is abnormal;
• wherein when the first control module receives an external abnormal signal and the first control module fails to control the fire door actuating module to close the fire door, or when the first control module does not receive the external abnormal signal and the first control module controls the fire door actuating module to close the fire door, the second control module determines that the operation of the first control module is abnormal;
• wherein when the fire door is to be closed, at least one of the first and second control modules are controlled to cancel a magnetic attraction force of the electromagnetic module, thereby disengaging the brake disc assembly from the electromagnetic module to release the fire door, so that the fire door is automatically closed.