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Elevator Control System Upgrades β Frequently Asked Questions
What are the signs that an elevator control system needs replacement?
Key indicators include: frequent nuisance trips or faults requiring manual reset, inability to obtain spare parts for the existing controller, failure to meet current EN 81-20 safety requirements (particularly PESSRAL for programmable electronics), inability to integrate with modern safety devices (light curtains, GSM intercoms), high energy consumption with no VFD, and passenger complaints about levelling accuracy or ride quality. Controllers older than 15β20 years should be assessed for modernization.
Does replacing the control system require a full re-certification of the elevator?
In Turkey, replacing the control system is classified as a significant modification under the Elevator Regulation (AsansΓΆr YΓΆnetmeliΔi), requiring updated technical documentation, a conformity assessment, and third-party inspection by a notified body (onaylanmΔ±Ε kuruluΕ). The modernization package must demonstrate compliance with the current edition of EN 81-20. Turkish suppliers on Elevator.tr can assist with documentation preparation and arrange third-party inspection services.
How long does a control system upgrade take to complete?
A typical elevator control system upgrade takes 3β7 working days per elevator, depending on the complexity of the original system, the number of landings, the scope of additional work (door operators, sensors), and access constraints in the machine room. Full-building modernization programmes for multi-elevator installations are typically phased to maintain at least partial elevator service throughout the project.
What energy savings can be expected from a control system upgrade with VFD?
Installing a modern variable frequency drive (VFD/inverter) as part of the control upgrade typically reduces motor energy consumption by 30β50% compared to older direct-online (DOL) or star-delta starting systems. Adding regenerative drives (which feed braking energy back to the building grid) can achieve 40β60% total energy reduction. Turkish control system suppliers on Elevator.tr provide energy audit reports and estimated payback calculations as part of their modernization proposals.