INVT GD300L Elevator Drive Ensures Safe and Smooth Operation at Consultorios Especializados Medical Center in Peru

Abstract: INVT GD300L elevator-specific drive was successfully deployed at the Consultorios Especializados medical center in Lima, Peru. The project aimed to deliver a safe, reliable, and smooth elevator operation in a critical healthcare environment. With precise closed-loop control, advanced safety functions, and ultra-quiet operation, the GD300L significantly improved patient experience and operational efficiency.

Customer Background

Consultorios Especializados is a multi-story medical facility located in Lima, Peru. As a high-traffic healthcare center, it serves patients with diverse medical needs daily. Ensuring elevator safety, quietness, and reliability is critical to maintaining smooth operations and a comfortable environment for patients and staff.

Challenges & Requirements

The facility required an elevator system that could meet the following stringent standards:
- High Reliability: To ensure uninterrupted transportation across floors.
- Precision Control: Support closed-loop vector control for permanent magnet synchronous motors.
- Enhanced Safety:
  • Emergency rescue capability with AC220V UPS.
  • Forced deceleration at terminal floors to avoid overtravel.
- Smooth & Quiet Ride: No vibration during start/stop, minimal noise for a healing environment.
- Compatibility: Support for various encoder types (incremental, SIN/COS, absolute, UVW).
- User-friendly Operation: Optional external LCD keypad with multilingual interface.

INVT Solution

To meet these demands, INVT offered a tailored elevator drive solution built around the GD300L-004G-2 model, known for its high precision and adaptability in public infrastructure applications.

* System Configuration

 
* Component
- Drive:  INVT GD300L-004G-2

- Motor : 3.0 kW, 220V Permanent Magnet Synchronous Motor
- Encoder: ERN1387 SIN/COS encoder
- PG Card: EC-PG102-05-T supporting DC5V SIN/COS signals
- Brake Resistor: 35Ω / 1200W
- Power Supply : 3-phase 220V

* Key Features
- Forced Deceleration at terminal levels to ensure precise and safe stops.
- Emergency Operation via AC220V UPS for uninterrupted elevator service during outages.
- Closed-Loop Vector Control ensures ±3mm floor leveling accuracy.
- Torque Compensation eliminates rollback, enabling vibration-free start/stop.
- Ultra-Quiet Operation, maintaining a calm hospital atmosphere.
- Energy Efficiency through optimized drive algorithms.

Implementation & Highlights

The system was installed in a machine-room (MR) elevator serving four floors, rated at 1.0 m/s speed and 450 kg capacity.

* Parameter Setup & Commissioning
- Speed Mode: Closed-loop vector control (P00.00 = 3)
- Motor Parameters: Configured as per motor nameplate (P02.00–P02.05)
- Safety Features:
  • Motor overload protection (P11.08)
  • Terminal protection enabled (P05.16)
- Auto-Tuning: Performed to optimize motor response and stability.

Since commissioning, the system has been running continuously for over a year without faults, reflecting the drive’s long-term durability and performance.

 Customer Benefits

* Reliability: Continuous operation in a mission-critical environment.
* Safety: Integrated rescue function and precise stopping for patient safety.
* Comfort: Vibration-free starts and ultra-low noise operation improved passenger experience.
* Precision:  Achieved ±3mm floor-leveling accuracy critical in medical environments.
Energy Savings: Reduced electricity consumption compared to conventional drives.

Conclusion 

The INVT GD300L elevator drive proved to be an ideal solution for the Consultorios Especializados medical center, fulfilling stringent requirements of the healthcare sector. With its superior safety features, ride comfort, and reliability, GD300L is now a preferred choice for critical-use elevators in hospitals and similar public facilities.