LVMA ATS Controller for Automatic Transfer Switch Panels
LVMA ATS Controller for Automatic Transfer Switch Panels
The LVMA ATS Controller is an intelligent control unit for automatic transfer switches, managing seamless switching between mains and generator power. With an LCD display, multi-mode operation, and built-in alarms, it ensures continuous power supply for critical loads in commercial and industrial systems.
Model：Y700、Y701B、Y703N
Delay Function：Switching delay, reset delay (adjustable)
Switch Detection：Auxiliary contact detection of switch position, in-place feedback
Linkage Function：Generator start / Stop control
Operating Power Supply：AC220V / AC380V
Standard：GB/T 14048.11, IEC 60947-6-1
The LVMA ATS Controller is an intelligent control unit for automatic transfer switches, managing seamless switching between mains and generator power. With an LCD display, multi-mode operation, and built-in alarms, it ensures continuous power supply for critical loads in commercial and industrial systems.
Model：Y700、Y701B、Y703N
Delay Function：Switching delay, reset delay (adjustable)
Switch Detection：Auxiliary contact detection of switch position, in-place feedback
Linkage Function：Generator start / Stop control
Operating Power Supply：AC220V / AC380V
Standard：GB/T 14048.11, IEC 60947-6-1
1. Product Overview
2. Key Specifications
| Parameter | Details |
|---|---|
| Model | LVMA ATS Controller |
| Application | Dual-source ATS (mains + generator power systems) |
| Control Modes | Automatic, Manual, Test |
| Display | LCD screen (shows voltage, frequency, status, faults) |
| Monitoring Functions | Mains voltage/frequency, generator voltage/frequency, phase status, fault alarms |
| Switching Logic | Configurable transfer delay, generator start/stop control, fail-safe operation |
| Control Outputs | Generator start/stop relay outputs, ATS switch control outputs, alarm relay outputs |
| Power Supply | 8-35V DC / 85-265V AC (dual power options) |
| Operating Temperature | -20°C ~ +70°C |
| Enclosure Rating | IP40 (front panel) |
| Mounting Type | Panel mount (standard cutout) |
| Compliance Standards | IEC 61000-6-2, IEC 61000-6-4, CE |
| ATS Controller Function and Parameter Comparison Table in LVMA | |||
|
Product Pictures |
 |
 |
 |
| Controller type | Y-700N | Y-703N | Y701B |
| Controller Installation | |||
| Installation method | Embedded installation (Mounted on panel door) | ||
| Connection mode | Terminal block | Terminal block + Customized cables | |
| Out line dimensions W*L*H | 211*155*55 | 170*126*56 | 150*122*62 |
| Hole size W*L | 186*141 | 150*111 | 130*111 |
| Characteristics Overview-Control Circuit | |||
| Compatible switch types | ACB/MCCB/MTS/ATS | MCCB/MTS/ATS | MCCB/MTS/ATS |
| Output ports/Number | 7: Programmable (pulse signal
or continuous model) |
3(Fixed)+3(Programmable) | 3(Fixed) |
| Input ports/Number | 6/Dry Contact
Input/Programmable |
6/Dry Contact
Input/Programmable |
4/Fixed |
| Rated operating voltage Ue | 230/400V | 230/400V | 230/400V |
| Rated insulation voltage Ui | 800V | 800V | 800V |
| Reference voltage for power detection Un | 220/380V | 220/380V | 220/380V |
| Controller(Min./Max.) | 70 ~ 120%Ue | 70 ~ 120%Ue | 70 ~ 120%Ue |
| Operating voltage range（V） | |||
| Operating voltage range(V) | Phase voltage 161 ~277 | Phase voltage 161 ~277 | Phase voltage 161 ~277 |
| Line voltage 280 ~480 | Line voltage 280 ~480 | Line voltage 280 ~480 | |
| Max.phase voltage of control power
Us（V） |
Phase voltage 277 | Phase voltage 277 | Phase voltage 277 |
| Max.measured line voltage of
control power Us(v) |
Line voltage 660 | Line voltage 480 | Line voltage 480 |
| Rated operating frequency | Adaptive 50/60Hz | Adaptive 50/60Hz | Adaptive 50/60Hz |
| Applicable Grounding System | IT/TN-C/TN-S/TT | TN-C/TN-S/TT | TN-C/TN-S/TT |
| Detection power（3-Phase products） | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Detection power（1-Phase products） | Common 1 P/Standby 1 P | Common 1 P/Standby 1 P | Common 1 P/Standby 1 P |
| Voltage loss judgment value | ≤30% Ue | ≤30% Ue | ≤30% Ue |
| Phase Failure Transfer | |||
| Detection power（3-Phase products） | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Detection power（1-Phase products） | Common 1 P/Standby 1 P | Common 1 P/Standby 1 P | Common 1 P/Standby 1 P |
| Phase failure judgment value (any phase) |
≤50V | ≤50V | ≤50V |
| Voltage loss and phase failure recovery Rated voltage Ue 230V,including 220V |
85% | 180V | 180V |
| Voltage loss and phase failure recovery Rated voltage Ue 400V,including |
85% | 310V | 310V |
| Under voltage Transfer | |||
| Detection power | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Under voltage setting range Rated voltage Ue 230V,including 220V |
50-100% | 100-200V | 100-200V |
| Factory default value | 80%Ue | 165V | 165V |
| Under voltage recovery value
Rated voltage Ue 230V,including 220V |
85%Ue | — | Under voltage value + 10-30V |
| Default+10V | Default+10V | ||
| Over voltage Transfer | |||
| Detection power | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Over voltage setting range Rated voltage Ue 230V,including 220V |
100-150%Ue | 200V-300V | 200V-300V |
| Factory default value | 120%Ue | 270V | 270V |
| Over voltage recovery value Rated voltage Ue 230V,including 220V |
115%Ue | — | Overv oltage value-10-30V |
| Default-10V | Default-20V | ||
| Frequency Abnormality Transfer | |||
| Detection power | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Frequency abnormality setting range | 0-70Hz | 0-70Hz | Only detection |
3. Core Features
✅ Automatic Power Transfer: Seamlessly switches between mains and generator power based on voltage/frequency monitoring, eliminating downtime during outages.
✅ LCD Real-Time Monitoring: Displays mains/generator voltage, frequency, phase status, and fault codes for at-a-glance system visibility.
✅ Multi-Mode Operation: Supports automatic, manual, and test modes for flexible control and maintenance.
✅ Customizable Settings: Configurable transfer delays, generator start/stop times, and voltage/frequency thresholds to match specific system requirements.
✅ Built-In Alarm Functions: Audible/visual alarms for faults such as mains failure, generator failure, over/under voltage, and phase loss.
✅ Generator Control: Integrated generator start/stop control with preheat, crank, and cool-down sequences for reliable backup power operation.
✅ Fail-Safe Design: Includes emergency stop and manual override functions for maintenance and critical situations.
✅ User-Friendly Interface: Intuitive button layout with dedicated keys for source 1, source 2, and mode selection, simplifying operation and setup.
4. Applications
- Commercial building backup power systems
- Industrial facility critical load protection
- Data center and server room power distribution
- Telecommunications tower and base station power systems
- Hospital and healthcare facility emergency power
- Mining and remote site power systems
- Generator rental and portable power units
5. Why Choose LVMA ATS Controller?
- Seamless Power Continuity: Reliable automatic transfer ensures uninterrupted power supply for critical loads, reducing downtime and equipment damage.
- Comprehensive Monitoring: LCD display and fault alerts provide full visibility into system status, enabling quick troubleshooting.
- Flexible Configuration: Customizable switching logic and generator control settings adapt to a wide range of ATS and generator systems.
- User-Friendly Operation: Intuitive interface with dedicated buttons and clear labels simplifies setup, operation, and maintenance.
- Robust Performance: Wide operating temperature range and dual power supply options ensure reliable performance in diverse environments.
- Compliant & Certified: Meets international EMC and safety standards, making it suitable for global commercial and industrial applications.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and configuration instructions.
- Contact our engineering team for custom programming or OEM solutions for large-scale ATS projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
2. Key Specifications
| Parameter | Details |
|---|---|
| Model | LVMA ATS Controller |
| Application | Dual-source ATS (mains + generator power systems) |
| Control Modes | Automatic, Manual, Test |
| Display | LCD screen (shows voltage, frequency, status, faults) |
| Monitoring Functions | Mains voltage/frequency, generator voltage/frequency, phase status, fault alarms |
| Switching Logic | Configurable transfer delay, generator start/stop control, fail-safe operation |
| Control Outputs | Generator start/stop relay outputs, ATS switch control outputs, alarm relay outputs |
| Power Supply | 8-35V DC / 85-265V AC (dual power options) |
| Operating Temperature | -20°C ~ +70°C |
| Enclosure Rating | IP40 (front panel) |
| Mounting Type | Panel mount (standard cutout) |
| Compliance Standards | IEC 61000-6-2, IEC 61000-6-4, CE |
| ATS Controller Function and Parameter Comparison Table in LVMA | |||
|
Product Pictures |
|
|
|
| Controller type | Y-700N | Y-703N | Y701B |
| Controller Installation | |||
| Installation method | Embedded installation (Mounted on panel door) | ||
| Connection mode | Terminal block | Terminal block + Customized cables | |
| Out line dimensions W*L*H | 211*155*55 | 170*126*56 | 150*122*62 |
| Hole size W*L | 186*141 | 150*111 | 130*111 |
| Characteristics Overview-Control Circuit | |||
| Compatible switch types | ACB/MCCB/MTS/ATS | MCCB/MTS/ATS | MCCB/MTS/ATS |
| Output ports/Number | 7: Programmable (pulse signal
or continuous model) |
3(Fixed)+3(Programmable) | 3(Fixed) |
| Input ports/Number | 6/Dry Contact
Input/Programmable |
6/Dry Contact
Input/Programmable |
4/Fixed |
| Rated operating voltage Ue | 230/400V | 230/400V | 230/400V |
| Rated insulation voltage Ui | 800V | 800V | 800V |
| Reference voltage for power detection Un | 220/380V | 220/380V | 220/380V |
| Controller(Min./Max.) | 70 ~ 120%Ue | 70 ~ 120%Ue | 70 ~ 120%Ue |
| Operating voltage range（V） | |||
| Operating voltage range(V) | Phase voltage 161 ~277 | Phase voltage 161 ~277 | Phase voltage 161 ~277 |
| Line voltage 280 ~480 | Line voltage 280 ~480 | Line voltage 280 ~480 | |
| Max.phase voltage of control power
Us（V） |
Phase voltage 277 | Phase voltage 277 | Phase voltage 277 |
| Max.measured line voltage of
control power Us(v) |
Line voltage 660 | Line voltage 480 | Line voltage 480 |
| Rated operating frequency | Adaptive 50/60Hz | Adaptive 50/60Hz | Adaptive 50/60Hz |
| Applicable Grounding System | IT/TN-C/TN-S/TT | TN-C/TN-S/TT | TN-C/TN-S/TT |
| Detection power（3-Phase products） | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Detection power（1-Phase products） | Common 1 P/Standby 1 P | Common 1 P/Standby 1 P | Common 1 P/Standby 1 P |
| Voltage loss judgment value | ≤30% Ue | ≤30% Ue | ≤30% Ue |
| Phase Failure Transfer | |||
| Detection power（3-Phase products） | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Detection power（1-Phase products） | Common 1 P/Standby 1 P | Common 1 P/Standby 1 P | Common 1 P/Standby 1 P |
| Phase failure judgment value (any phase) |
≤50V | ≤50V | ≤50V |
| Voltage loss and phase failure recovery Rated voltage Ue 230V,including 220V |
85% | 180V | 180V |
| Voltage loss and phase failure recovery Rated voltage Ue 400V,including |
85% | 310V | 310V |
| Under voltage Transfer | |||
| Detection power | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Under voltage setting range Rated voltage Ue 230V,including 220V |
50-100% | 100-200V | 100-200V |
| Factory default value | 80%Ue | 165V | 165V |
| Under voltage recovery value
Rated voltage Ue 230V,including 220V |
85%Ue | — | Under voltage value + 10-30V |
| Default+10V | Default+10V | ||
| Over voltage Transfer | |||
| Detection power | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Over voltage setting range Rated voltage Ue 230V,including 220V |
100-150%Ue | 200V-300V | 200V-300V |
| Factory default value | 120%Ue | 270V | 270V |
| Over voltage recovery value Rated voltage Ue 230V,including 220V |
115%Ue | — | Overv oltage value-10-30V |
| Default-10V | Default-20V | ||
| Frequency Abnormality Transfer | |||
| Detection power | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P | Common 3 P/Standby 3 P |
| Frequency abnormality setting range | 0-70Hz | 0-70Hz | Only detection |
3. Core Features
✅ Automatic Power Transfer: Seamlessly switches between mains and generator power based on voltage/frequency monitoring, eliminating downtime during outages.
✅ LCD Real-Time Monitoring: Displays mains/generator voltage, frequency, phase status, and fault codes for at-a-glance system visibility.
✅ Multi-Mode Operation: Supports automatic, manual, and test modes for flexible control and maintenance.
✅ Customizable Settings: Configurable transfer delays, generator start/stop times, and voltage/frequency thresholds to match specific system requirements.
✅ Built-In Alarm Functions: Audible/visual alarms for faults such as mains failure, generator failure, over/under voltage, and phase loss.
✅ Generator Control: Integrated generator start/stop control with preheat, crank, and cool-down sequences for reliable backup power operation.
✅ Fail-Safe Design: Includes emergency stop and manual override functions for maintenance and critical situations.
✅ User-Friendly Interface: Intuitive button layout with dedicated keys for source 1, source 2, and mode selection, simplifying operation and setup.
4. Applications
- Commercial building backup power systems
- Industrial facility critical load protection
- Data center and server room power distribution
- Telecommunications tower and base station power systems
- Hospital and healthcare facility emergency power
- Mining and remote site power systems
- Generator rental and portable power units
5. Why Choose LVMA ATS Controller?
- Seamless Power Continuity: Reliable automatic transfer ensures uninterrupted power supply for critical loads, reducing downtime and equipment damage.
- Comprehensive Monitoring: LCD display and fault alerts provide full visibility into system status, enabling quick troubleshooting.
- Flexible Configuration: Customizable switching logic and generator control settings adapt to a wide range of ATS and generator systems.
- User-Friendly Operation: Intuitive interface with dedicated buttons and clear labels simplifies setup, operation, and maintenance.
- Robust Performance: Wide operating temperature range and dual power supply options ensure reliable performance in diverse environments.
- Compliant & Certified: Meets international EMC and safety standards, making it suitable for global commercial and industrial applications.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and configuration instructions.
- Contact our engineering team for custom programming or OEM solutions for large-scale ATS projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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