Customers have inquired about the alerts that can appear on the MW display, severity level, and possible actions
The MW also has input relays which can trigger different alerts on the display. Relay inputs are not faults with the UPS. They are external events reported to, or through, the UPS. These events can influence UPS operation.
Product line:
Symmetra Megawatt
Environment:
All models, all serial numbers
Cause:
Customer Inquiry
Resolution:
Reference the attached PDF Document for complete list as of firmware revision 25.20
Alarm Levels as of Revision 25.20 | ||
Info: Informational Alarm. No immediate action required. Check the cause of the alarm at next maintenance visit. | ||
Warning: The UPS system may have gone into bypass. The load remains supported, but action must be taken. Call Technical Support. The area on the right side of the top screen alternates between blue and red. | ||
Severe: Take immediate action. Call Technical Support. The red area of the top of the screen alternates between blue and red. | ||
Display Message | Alarm Severity 1=Info 2=Warning 3=Severe | Notes |
Battery temperature is no longer high | 1 | |
Battery temperature is high - UPS shutdown started | 3 | |
Battery current is no longer high | 1 | |
Battery current is high - UPS shutdown started | 3 | |
Battery current is no longer over limit | 1 | |
Battery current is over limit | 2 | |
Battery voltage OK | 1 | |
Battery voltage high | 2 | |
Battery cubicle fuse blown | 3 | This will also report if battery breaker is open |
Battery Breaker Open | 3 | The UPS will not be able to operate in battery operation |
Discharging Batteries | 2 | |
Battery Capacity Test Running | 1 | Battery capacity test being performed. |
Relay inputs are not faults with the UPS. They are external events reported to or through the UPS. These events can influence UPS operation. | ||
Relay Input: Generator Active | Relay Board 1 Input 1 Input for indicating that a generator is active. This will be used to reduce the charge power. This also activates the use of online delay. | |
Relay input: Battery Room Ventilation Fault | Relay Board 1 Input 2 Input for indicating that the ventilation in battery rooms is defect. This will be used to reduce the charge power. | |
Relay input: DC Ground fault detection | Relay Board 1 Input 3 | |
Relay input: Plant clock synchronization | Relay Board 1 Input 5 | |
Relay input: Power tie detection | Relay Board 1 Input 6 Input from PLC to detect if power tie is active. | |
Relay input: forced battery operation on | Relay Board 1 Input 7 This input will force the unit to battery operation when activated in normal operation and report it in the event log. | |
Relay input: Lock Requested Bypass | Relay Board 1 Input 8 When the system is in bypass it will get locked in bypass | |
Relay input: Remove charge derating on generator | Relay Board 2 Input 1 Input for deactivate charge derating when on generator (Relay input 1 board 1). Will activate derating when load is over 90% and deactivate under 80% load. |
Released for: Schneider Electric Egypt and North East Africa
Customers have inquired about the alerts that can appear on the MW display, severity level, and possible actions
The MW also has input relays which can trigger different alerts on the display. Relay inputs are not faults with the UPS. They are external events reported to, or through, the UPS. These events can influence UPS operation.
Product line:
Symmetra Megawatt
Environment:
All models, all serial numbers
Cause:
Customer Inquiry
Resolution:
Reference the attached PDF Document for complete list as of firmware revision 25.20
Alarm Levels as of Revision 25.20 | ||
Info: Informational Alarm. No immediate action required. Check the cause of the alarm at next maintenance visit. | ||
Warning: The UPS system may have gone into bypass. The load remains supported, but action must be taken. Call Technical Support. The area on the right side of the top screen alternates between blue and red. | ||
Severe: Take immediate action. Call Technical Support. The red area of the top of the screen alternates between blue and red. | ||
Display Message | Alarm Severity 1=Info 2=Warning 3=Severe | Notes |
Battery temperature is no longer high | 1 | |
Battery temperature is high - UPS shutdown started | 3 | |
Battery current is no longer high | 1 | |
Battery current is high - UPS shutdown started | 3 | |
Battery current is no longer over limit | 1 | |
Battery current is over limit | 2 | |
Battery voltage OK | 1 | |
Battery voltage high | 2 | |
Battery cubicle fuse blown | 3 | This will also report if battery breaker is open |
Battery Breaker Open | 3 | The UPS will not be able to operate in battery operation |
Discharging Batteries | 2 | |
Battery Capacity Test Running | 1 | Battery capacity test being performed. |
Relay inputs are not faults with the UPS. They are external events reported to or through the UPS. These events can influence UPS operation. | ||
Relay Input: Generator Active | Relay Board 1 Input 1 Input for indicating that a generator is active. This will be used to reduce the charge power. This also activates the use of online delay. | |
Relay input: Battery Room Ventilation Fault | Relay Board 1 Input 2 Input for indicating that the ventilation in battery rooms is defect. This will be used to reduce the charge power. | |
Relay input: DC Ground fault detection | Relay Board 1 Input 3 | |
Relay input: Plant clock synchronization | Relay Board 1 Input 5 | |
Relay input: Power tie detection | Relay Board 1 Input 6 Input from PLC to detect if power tie is active. | |
Relay input: forced battery operation on | Relay Board 1 Input 7 This input will force the unit to battery operation when activated in normal operation and report it in the event log. | |
Relay input: Lock Requested Bypass | Relay Board 1 Input 8 When the system is in bypass it will get locked in bypass | |
Relay input: Remove charge derating on generator | Relay Board 2 Input 1 Input for deactivate charge derating when on generator (Relay input 1 board 1). Will activate derating when load is over 90% and deactivate under 80% load. |
Released for: Schneider Electric Egypt and North East Africa




Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales enquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Center
Find support resources for all your needs, in one place.
什么是信息安全解决方案和服务?
信息安全解决方案和服务包括旨在降低IT和OT网络风险、保护数据免受未经授权访问、网络攻击和破坏的广泛措施。这一综合方法包括威胁监控、事件响应、安全评估、渗透测试、安全意识培训和全球合规性等,涵盖人员、流程和技术。通过利用施耐德电气的信息安全解决方案和服务,组织能够有效地降低其数字资产的风险敞口,并确保其数据的机密性、完整性和可用性。在当今互联世界中,网络威胁不断演进,这些解决方案和服务在帮助企业降低风险和维护安全数字环境方面起着关键作用。
什么是信息安全解决方案和服务?
我们的信息安全解决方案和服务框架由五个关键部分组成,旨在显着增强您的企业的信息安全态势。这些部分包括安全咨询、设计和实施、监控、维护和培训。我们专门定制的信息安全解决方案和服务旨在确保政策和程序管理合规性、资产清单、差距分析、深度防护、安全架构、资产管理、系统加固和解决方案集成。这些解决方案和服务的核心是设备和威胁管理、防火墙安全、OT SIEM支持以及OT安全服务。通过实施系统升级、安全补丁和事件响应,施耐德电气使您的企业能够主动维护安全,同时提高安全意识,为安全工程师和管理员提供培训,提升您团队的专业技能。
为什么合理管理的安全服务治理和遵守全球标准对您的业务有帮助?
适当管理的安全服务治理和遵守全球标准对您的业务至关重要,因为它们为降低安全风险、确保法规遵从性、保护敏感数据以及加强客户和利益相关方之间的总体信任和信心提供了一个强有力的框架。它还表明您致力于维护高安全标准,这将成为您在市场中的竞争优势。