BLUE M
Blue M - - DC 146 Series Industrial Ovens, Models DC, DCW, DCI, DCC
Page 60
16.0 DOOR LIMIT SWITCH OPERATION
O
tional
17.0 ELECTRO - MECHANICAL DOOR LOCK OPERATION
O
tional
A Door Limit Switch (LS) may be installed to detect for proper closure of the oven door. The switch acts as a
digital input to the main controller and must be activated in order to start a heat process cycle. If the door is
inadvertently opened during the process cycle, it will cause the heating system to shut down and the
circulation blower to turn off. This will prevent a force of hot air from being expelled outward to the operator.
An Electro-mechanical Door Lock may be provided to prevent the oven door from being opened after the
process cycle has begun. An Event Output from a profiling type controller is used to lock the door with the
start of the process. This Event Output will energize the Unit On/Off Control Relay CR1121. Normally open
contacts of CR1121 will close to energize the Door Lock solenoid SOL1241, which activates the latching
mechanism with a strike plate mounted on the bottom of the door. When the process cycle is complete, the
Event Output will turn off and cause the Door Lock solenoid to deenergize and unlock the door.
DOOR LIMIT SWITCH
ELECTRO - MECHANICAL DOOR LOCK
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