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GS270 Series Pump Drive
- VEICHI's Innovative Multi-pump Control Algorithms.
- Advanced Built-in Cascade Drive Control.
- Optional Relay Expansion (GS20-R8-E).
- Superior Master-Slave Redundant Control Technology.
- Smart Pump Shift.
- Water Hammer Prevention.
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GS270 Series Pump Drive Overview
Tailored for the water supply and sewage treatment sectors, our solution integrates cutting-edge pump-specific software and functions such independent PID control, multi-pump management, and pump shif t. These advanced features ensure unwavering stability, significant energy savings, safeguarding pump integrity, and prolonged overall system lifespan. Its outstanding performance positions it as the pr emier choice for secondary water supply in commercial buildings, educational facilities, healthcare institutions, and residential complexes, adeptly addressing the diverse and varying demands of water supply and wastewater management.

Multi-pump Control for System Efficiency and Stability

1. VEICHI's Innovative Multi-pump Control Algorithms
- Significant reductions in energy consumption compared to the constant-frequency pumps.
- Reduced cost of use with reduced carbon emissions to a greater extent.

2. Advanced Built-in Cascade Drive Control
- Efficient interconnection between drive by RS485 communication.
- Flexibly management of up to 10 pumps running at variable frequency simultaneously.
- Optimal overall performance and reliability.

3. Optional Relay Expansion (GS20-R8-E)
Up to 4 pumps (1 for variable frequency operation + 3 for constant frequency operation) for lower cost and higher requirements

4. Superior Master-Slave Redundant Control Technology
In the event of a master or slave pump failure, our system is designed to automatically switch to the backup pump, ensuring a seamless continuation of water supply to ensure overall system stability. The intelligent failover mechanism acts as an additional safeguard for the water supply system, guaranteeing stable operation even during critical moments.

5. Smart Pump Shift
For water systems demanding continuous operation and high reliability, the pump shift function strategically distributes the workload among the pumps and balances their running times. This mechanism substantially mitigates the risk of wear and tear, as well as breakdowns, that can result from the extended operation of a single pump. Users can set shift intervals or auto shift according to their runtimes to prolong service life of the entire water supply infrastructure.

6. Water Hammer Prevention
When there is a drastic flow change in the pipeline, such as a sudden stop or turn, water hammer may occur due to inertia, leading to drastic pressure fluctuations, which may cause serious damage to the pipeline and its connectors. GS20 pump drive can effectively mitigates the water hammer and reduces the impact on the pipeline through its advanced features such as intelligent pump plus/minus control, overpressure monitoring and pipe filling.

Pump-dedicated Functions
- Sleep: Energy-saving
- Pump Clean: Auto pump cleaning prevents sediment clogging and reduces wear on internal pump parts
- Anti-Freezing/Rusting: Protection on pipes from rusting and freezing when there is no water flow for long
- PID Auto-tuning: Auto regulation for optimal PID parameters and efficient operation
- Jockey Pump: Protection on system pressure from fluctuations in water usage
- Dryout Protection: Pump operation prevention without water
- Pipe Filling: Water hammer prevention due to air in pipes
- Pressure Loss Compensation: Automatic compensation of pressure to ensure adequate pressure and flow where needed
- Priming Pump: Enhanced inlet pressure of the main pump before operation to avoid cavitation
- Low-frequency Protection: Prevention of pump performance degradation and damage caused by low-speed pump operation
- Multi-pump Control: One drive control for multiple pump for lower cost
- Cascade Drive Control: Fully redundant multi-pump system with independent control and centralized management
- Overpressure Monitor: Prevention of pipe rupture and equipment damage due to high pressure in the multi-pump system
Naming Rules

Specifications
| Input voltage | T3: Three-phase 380V~480V; 50Hz/60Hz |
|---|---|
| Voltage fluctuation | T3: -15%~10%; voltage imbalance rate <3% |
| Frequency fluctuation | ±5%; Distortion rate in conformity to IEC61800-2 |
| Output voltage | 0V~input voltage, error < 5% |
|---|---|
| Output frequency | 0Hz~599Hz |
| Overload capability | T3: 120% of rated current for 35 seconds; 140% of rated current for 7 seconds; 150% of rated current for 3 seconds |
| Motor | Asynchronous motors, permanent magnet synchronous motors, synchronous reluctance motors |
|---|---|
| Control mode | V/F, SVC, FVC, and voltage-frequency split control |
| Modulation mode | SVPWM |
| Speed control range | SVC: 1:200 FVC: 1:1000 |
| Stabilizing speed accuracy |
SVC: Three-phase AM ±0.5% PMSM ±0.1% SVC: ±0.02% |
| Starting torque | SVC: 150% of rated torque at 0.25Hz SVC: 200% of rated torque at 0Hz |
| Torque response time | SVC: <10ms FVC: <5ms |
| Torque accuracy | SVC: ±5% FVC: ±2.5% |
Downloads
| File Name | Type | Language | File Type | Update | Download |
|---|---|---|---|---|---|
| GS270 Series Pump Drive Catalog | Catalog | English | 2026-08-14 | 2.5MB |
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