Issue This document attempts to explain correct methods of wiring RS485 communication networks in industrial environments based on various application notes and technical articles. Environment RS485 Serial Modbus Communications Resolution 1. RS-485 (EIA/TIA-485) Differential Data Transmission...
Before submitting the RMA, please check if the warranty is still valid. Warranty detail can be found on apc.com>find product description in website>Technical Specification>Conformance>Standard warranty Please input the customer information, delivery address (if not same as above) and...
Issue: Connecting SoMove to the VFD using the Ethernet network connection. Product Line: ATV61 ATV71 ATV630 ATV930 ATV320 ATV340 ATV32 ATV320 Environment: Ethernet IP or Profinet option installed. VW3A3316, VW3A3320, VW3A3627 VW3A3720 Cause: Drive is not detected when attempting to connect....
Utilization categories According to IEC 60947-2, Utilization category of a circuit breaker shall be stated with reference to whether or not it is specifically intended for selectivity by means of an intentional time delay with respect to other circuit breakers in series on the load side under...
Issue Register list for Modbus communication Product Line PM5110, PM5330, PM5340, PM5560, PM5563, PM56xx, PM57xx Environment Power Meter Communications Modbus Register List Cause PM5000 series register list is needed for Modbus communication Resolution See the attached documents for...
Issue You wish to upgrade your Network Management Card's (NMC) firmware or have been instructed to. You have a device such as a Smart-UPS, Smart-UPS Ultra, Easy UPS On-Line, Easy UPS 3-Phase, Rack PDU, AV unit, or environmental monitoring unit with an embedded NMC that you wish to upgrade. You had...
Issue: Which Smart Slot Accessories are compatible with the SRT series of Smart-UPS Online products? Product Line: Smart-UPS Online Environment: All SRT models, All Serial Numbers Cause: The SRT series is an all-new generation of Double Conversion Online Smart-UPS. The updated UPS...
Issue: APC 3 Phase UPS; Installation of dual mains or two sources input to UPS; where does the neutral conductor get terminated? Product line: APC 3 Phase UPS Environment: All models, all serial numbers Cause: Installation of dual mains or two sources input to UPS; where does the neutral conductor...
Issue: How do I remember the relationship of voltage, current and resistance in an electrical system? Environment: N/A Solution: Voltage (unit of measurement - volt) is like the water pressure in the pipe. When you turn on a faucet, the water pressure makes the water flow out. Similarly, voltage...
Issue: What is an electrical "ground loop" and how does it affect my equipment? Environment: Ground loops can occur in any situation where multiple electrical devices are interconnected, especially when those devices are powered from different sources or located in different places with varying...
Issue: What is Power Factor Correction (PFC) - Does it help conserve energy? Answer: Explanation 1: Power Factor Correction (PFC) doesn't directly reduce the overall electric consumption of a device or system, but it does play a role in optimizing the efficiency of electrical systems, which can...
Register the Easy UPS with APC by Schneider Electric customer support. This is a one time process required to be done only during initial installation. The Easy UPS output cannot be turned on without successfully completing registration process. After successful completion of the registration...