Emergency Power Lowering System

Model 850

On board fail timer ensures that all cars can return on the auto sequence

The Emergency Power Lowering System is a revolutionary power system to govern and control systematic return of elevator cars in emergency power situations. With the ability to operate on any available voltage, Model 850 is unmatched in versatility and ease of installation. Separate units, installed in each car’s controller, are governed by one “master” Model 850 controller unit connected to the emergency generator system. Up to 10 cars can be incorporated in the lowering sequence. An unlimited number of sequences can be cascaded.

All Model 850 units provide both automatic and manual lowering selection and operating cars are sent to the nearest landing and held with their doors open until the switch back to normal power is achieved. Units are mounted within an enclosure.

Our technical support and application team is always available and our excellent service support is just a free phone call away.

Key features:

• Compatible with any control system.
• Provides automatic and/or manual return of elevators to a predetermined landing.
• Timeout function bypasses cars if auto lowering is not accomplished in 30 seconds.
• Provides automatic and/or manual selection of the car to operate on the emergency power generator.
• Average installation time (determined by direct field feedback) is 4 hours.

Interface

Installation is accomplished by making up to 17 connections to the host controller. Several of these are used to assess car status, while others are used to alter control logic. Interface between various Model 850 units is accomplished through a series of up to 7 connections. Isolated relays are incorporated for interface and can be supplied to match the controller logic voltage.

All Model 850 units have an onboard fail timer. As each car is selected to lower to the predetermined landing, should a response not be detected within 30 seconds, the car is bypassed in the sequence.

Model 850 is only one of Electrodyn’s many innovative products to help you modernize your elevator system. Choose Electrodyn: we work with you when you have work to do!