Md anderson project No. XX-XXXX md anderson project name



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from a Master Menu. The display and control panel shall be mounted on the control section door. The display panel shall be 640 X 200 pixels, Liquid Crystal Display, capable of providing a full 80 characters by 25 lines of information.

  • Logic. System logic and control programming shall be resident in Application Specific Integrated Circuits. Rectifier, inverter, and system control logic shall be solid state. Switches, contacts, and relays shall only be used to signal the logic system as to the status of mechanical devices or to signal user control inputs. Relays shall be used to isolate the logic for customer external status and alarm Signaling.

  • Metered Values. A microprocessor shall control the display and memory functions of the monitoring system. All three phases of three-phase parameters shall be displayed simultaneously. All voltage and current parameters shall be monitored using true RMS measurements for accurate (±1%) representation of non-sinusoidal waveforms typical of computers and other sensitive loads. The following parameters shall be displayed:

                1. Multi-Module Unit.

                  1. Input voltage

                  2. Input current

                  3. Battery voltage

                  4. Battery charging/discharging current

                  5. Bypass input voltage

                  6. Bypass input frequency

                  7. Output voltage

                  8. Output frequency

                  9. Load current

                  10. Load kW

                  11. Load kVA

              1. Power Flow Indications. A power flow diagram shall graphically depict whether the load is being supplied from UPS, bypass, or battery and provide, on the same screen, the status of the following components must be indicated on the UPS Module.

                1. AC input circuit breaker

                2. Battery circuit breaker

                3. Inverter output circuit breaker

                4. Bypass and UPS output circuit breakers

                5. Static Bypass Switch (Connected, Disconnected)

                6. Module Off Line

                7. Time to overload transfer/shutdown

              1. Battery Status Indicator. A battery status indicator at the multi-module unit shall display DC alarm conditions, shutdown voltages, the present battery voltage, and battery time remaining during discharge. A graphical representation of the battery voltage during the discharge shall be displayed. The graphical representation shall remain in the monitoring system memory until the next discharge occurs and shall be available for review of the battery performance.

              2. Battery Cycle Monitor. The UPS shall have a BCM (Battery Cycle Monitor) built into system firmware to document the cycle service of the battery. It shall collect and retain information on the last 132 events that involved discharging the UPS battery.

                1. Cycle Categories. Each battery discharge cycle is to be put into one of four categories, depending on the duration of the event.

                  1. 0-30 seconds discharge

                  2. 31-90 seconds discharge

                  3. 91-240 seconds discharge

                  4. Over 240 seconds discharge

                2. Battery Cycle Data. The BCM shall collect and retain this information for each discharge cycle.

                  1. System time and date

                  2. Event number

                  3. Duration of cycle (seconds)

                  4. Lowest DC bus voltage

                  5. Highest DC bus current

                  6. KW carried by the batteries at the start of cycle

                3. Battery Environment Ambient Temperature. In addition, the BCM shall retain summary information on the total number of events, the cumulative ampere hours and the total discharge time since a given date.

                4. Data Storage Capacity. The BCM shall be capable of storing information for up to 132 discharge cycle events in its data buffer. When the buffer approaches its capacity, a warning message

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