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Ningbo Pecaf Electronic And Technology Co., Ltd.
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Product (371)
- Elevator infrared light curtain (139)
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Escalator operation indicator
(25)
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3Phases voltage monitoring relay
(4)
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- Braking Resistor (6)
- Elevator Parts (5)
- Others (146)
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Knowledge (30)
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Company Info
Ningbo Pecaf Electronic And Technology Co., Ltd. [China (Mainland)]
Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)
Knowledge
PLC control system of elevator
In order to facilitate repair and maintenance, should be installed on car top are easily accessible control device. The device should have a maintenance run switch to meet electrical safety requirements. The switch is bistable, with protection against unintentional operation. Subject to the following conditions: upon entering maintenance run normal operation should be canceled, electric operation under the State of emergency, butt loading and unloading operation. Only overhaul operation switch once again, to make the elevator back to normal work. Rows can move up and down action, for the prevention of accidents, shall identify the running direction. Speed should not exceed 0.63m/s of car maintenance, elevator operation should still rely on safety devices, run the scope cannot be longer than normal haul of.
In order to facilitate repair and maintenance, should be installed on car top are easily accessible control device. The device should have a maintenance run switch to meet electrical safety requirements. The switch is bistable, with protection against unintentional operation. Subject to the following conditions: upon entering maintenance run normal operation should be canceled, electric operation under the State of emergency, butt loading and unloading operation. Only overhaul operation switch once again, to make the elevator back to normal work. Rows can move up and down action, for the prevention of accidents, shall identify the running direction. Speed should not exceed 0.63m/s of car maintenance, elevator operation should still rely on safety devices, run the scope cannot be longer than normal haul of.
Security protection system
Generally includes the following protection components: speed switch, door lock closed electrical interlock protection device, door entry security station beyond the protected phase, phase failure protection, short circuit protection of elevator control system, a traction motor overload protection.
Generally includes the following protection components: speed switch, door lock closed electrical interlock protection device, door entry security station beyond the protected phase, phase failure protection, short circuit protection of elevator control system, a traction motor overload protection.
Fire control
Fire control capability of the lift: lift should be able to adapt to the basic requirements for fire control, there are several typical fire control system: lift bottom (or base station) set for the private fire service fire protection fire with glass Windows switch box. In a fire, break glass, stirring the switch inside the box, to cause the elevator to return immediately to the bottom. Bottom of the lift (or base station) set for the private fire service fire protection fire with glass Windows switch outside the box, there are available for firefighters dedicated key switch operation, just turn on the key switch would enable the return of the underlying (or base station) lift firefighters use. Elevator to return the underlying (or base station), for firefighters to control the operation of a private key to switch on the operation panel of the car. Fireman's special key switch is not located inside the car on the operation panel, but is set in the underlying (or base station), one of several call buttons box on the button box, as long as the firemen special key switch, you can make a set of elevator in the status of all the elevators were running into the fire emergency.
Fire control capability of the lift: lift should be able to adapt to the basic requirements for fire control, there are several typical fire control system: lift bottom (or base station) set for the private fire service fire protection fire with glass Windows switch box. In a fire, break glass, stirring the switch inside the box, to cause the elevator to return immediately to the bottom. Bottom of the lift (or base station) set for the private fire service fire protection fire with glass Windows switch outside the box, there are available for firefighters dedicated key switch operation, just turn on the key switch would enable the return of the underlying (or base station) lift firefighters use. Elevator to return the underlying (or base station), for firefighters to control the operation of a private key to switch on the operation panel of the car. Fireman's special key switch is not located inside the car on the operation panel, but is set in the underlying (or base station), one of several call buttons box on the button box, as long as the firemen special key switch, you can make a set of elevator in the status of all the elevators were running into the fire emergency.
