Save energy in your day-to-day operations

Enabling energy-saving operating modes on your escalators or moving walks is the most effective route towards energy-efficiency. Learn about the four most common modes, how they work and what’s required.

Star-delta operation

Star-delta runs an escalator in two different modes at unchanged speed. During the start, and if no load is detected, the escalator runs in star operation to reduce the current. If a load is detected, the motor switches to delta operation.

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Slow speed operation

Up to 60% energy savings in no-load drive with a frequency converter that runs the escalator at two different speeds: an energy-saving lower speed when no one is on the escalator, and the nominal speed as soon as someone enters.

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Slow speed stop operation

Like slow speed operation, a frequency converter runs the escalator at two different speeds: nominal speed as soon as someone enters, and a lower speed when no one is on the escalator. Additionally, it stops if empty for a defined period.

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Intermittent operation

Intermittent operation is an energy-saving option for infrequently used escalators. It will only start to move if a passenger approaches. If nobody is on the escalator, it stops entirely. Traffic lights indicate its direction.

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ADDITIONAL EQUIPMENT MODE OF OPERATION SAVING METHOD DIRECTIONS
Frequency converter Sensors needed Traffic lights Full stop Idle speed Constant speed No load Partial load Up- and downwards Up- or downwards
Star-delta operation ■ ■ ■ ■
Slow speed operation ■ ■ ■ ■ ■ ■
Slow speed stop operation ■ ■ ■ ■ ■ ■ ■ ■ ■
Intermittent operation ■ ■ ■ ■ ■ ■ ■