Drive-Chain Contact
This contact monitors the Drive-Chain for breakage. When actuated, the contact will stop the escalator.

Skirting Contacts
These contacts have been installed at both the top and bottom of the escalator at the transition curve. If an object gets caught between the step and the skirting panel, the resultant pressure on the skirting panel will actuate one of these contacts, thereby disabling and switching off the escalator.

Handrail Entry Contacts
The handrail entry points are located far beneath the head of the balustrade. The handrail entry contacts are so positioned that if there is any danger of an object becoming wedged in the handrail entry points, a contact will actuate and switch off the escalator..

Step Chain Contacts
Located in the lower step-reversing compartment, these contacts monitor the step chains for elongation, breakage or shortening of one or both step chains. When actuated, they will disable and switch off the escalator.

Step Sag Contacts
Fixed at the start sections of both inclined upper and lower transition curves, it will be actuated to stop escalator in case step(including step roller) sags more than 3mm..

Phase Monitor
This is a safety feature which monitors the main power supply and disables the escalator in the event of phase failure or phase reversal.

Motor Overload and Overheat Relay
This relay monitors the motor’s working condition. In case of motor overload or overheating, the escalator should be stopped..

Comb Contacts
If a foreign object is caught between the comb plates and the steps, the resulting pressing action will move one of the comb plates backwards and actuate a safety contact, thereby switching off the escalator.

Step Gap Illumination
Special green lamps in the form of fluorescent tubes, mounted on both the top and bottom of the escalator, make the individual steps clearly discernible. Especially at the horizontal runs. Therefore boarding the escalator is made much easier for the young, elderly and inexperienced users.

Maintenance Locking device
The normal key start function will be invalid while Maintenance Lock device is in use. The inspection socket in up and down machine room cannot be used at the same time.

Alarm Buzzer
The buzzer is located in up/down machine room, which can call passenger’s attention when starting the escalator.

Speed Monitor with Anti-reverse Function
Fixed at the bottom of the brake, it monitors the speed of flywheel as well as avoids reversing. Will stop escalator in case rated speed is over 120% or under 80%.

Step Anti-static Brush
Located in the truss, under the step near the linear end. Eliminates step static.

Controller Lift device
Located in the machine room, it is convenient to lift the controller for inspection and testing the escalator.

Emergency Stop Buttons
Built into the balustrade skirtings at the upper and lower ends of the escalator, the emergency stop button may be used to switch off the escalator manually.

Step Reversing Fences
The fence is fixed at the end of step reversing point in the machine room for safety.

Handrail Anti-static Roller
Located under both ends of the handrail in the truss.

Service Brake Release Contact

This contact is fixed at both brake arms to monitor whether the brake is open or not. If the brake operates abnormally, the escalator will not start and alarm buzzer will sound.

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