HONEYWELL 51308353-175 CC-TAOX11 DCS工控模塊備件
查看所有已編程報警或跳閘的RTD，并確定RTD是否存在短路或非常低的溫度（低于–50°C）。任何沒有跳閘或報警的RTD都將被忽略。當檢測到短路/低溫時，指定的輸出繼電器將工作，顯示屏上將顯示一條信息，識別導致報警的RTD。建議使用此功能時，將報警編程為鎖定，以便檢測到間歇性RTD并采取糾正措施。n打開RTD傳感器n[ENTER]更多打開RTD傳感器：關閉范圍：關閉，鎖定，未鎖定分配報警繼電器：報警范圍：報警，報警和輔助2，報警和輔2和輔3，報警和副3，輔助2，輔2和輔助3，輔助3打開RTD傳感器報警事件：關閉范圍；打開，關閉n RTD短路/低溫n[ENTEP]更多RTD短路/低溫度報警：關閉范圍，鎖定，未鎖定的ASSIGN ALARM RELAYS（分配報警繼電器）：報警范圍：報警、報警和輔助2、報警和輔2和輔3、報警和副3，總線未通電時報警或跳閘。如果該設定點編程為“是”，則任何報警/跳閘至少有一個電壓必須大于額定銘牌電壓額定值的20%。如果負載具有高慣性，則可能需要使電機離線跳閘或在線路電壓完全損失的情況下防止電機啟動。將該設定點編程為“否”可確保電機跳閘，只有在總線重新通電后才能重新啟動。如果啟用了欠壓報警或跳閘功能，一旦運行時Va、Vb或Vc的幅值低于拾取電平，或啟動時啟動拾取電平（延遲指定的時間段），將發(fā)生跳閘或報警（拾取電平是電機銘牌電壓的倍數(shù)）。當電機停止且U/V ACTIVE ONLY IF BUS ENERGIZED（僅當總線通電）設定點編程為“否”時，運行拾取水平也適用。在恒定負載下運行的電機上的欠壓會導致電流增加。繼電器熱模型通常會發(fā)現(xiàn)這種情況并提供充分的保護。然而，該設置點可與時間延遲一起使用，以提供額外的保護，該保護可編程為跳閘提前警告。當電源電壓已經(jīng)下降時，嘗試啟動大型電機也可能是不可取的。啟動電機時持續(xù)存在的嚴重欠壓可能會阻止電機達到額定轉速。這對于同步電機來說尤其重要。此功能可與時間延遲一起使用，以在開啟、關閉欠壓跳閘之前為欠壓條件提供保護：關閉范圍：關閉、鎖定、未鎖定分配跳閘繼電器：跳閘范圍：跳閘、跳閘和輔助2、跳閘和輔2和輔助3、跳閘和附屬3欠壓跳閘拾?。?.80 x額定范圍：0.60至0.99 x，或Vc在延遲指定的時間段內高于拾取電平，則會發(fā)生跳閘或報警（拾取電平是電機銘牌電壓的倍數(shù)）。在恒定負載下運行的電機上的過電壓會導致電流降低。然而，鐵和銅損失增加，導致電機溫度升高。電流過載繼電器不會檢測到這種情況并提供足夠的保護。因此，過電壓元件可用于在持續(xù)過電壓情況下保護電機。4.10.3相位反轉路徑：設置點×S9電壓元件×相位反轉469可檢測三相電壓的相位旋轉。如果所有三相電壓均大于電機銘牌電壓的50%時，相位反轉功能開啟，且三相電壓的相位旋轉與設定值不同，則跳閘和閉塞啟動將在500至700毫秒內發(fā)生。啟用單VT操作時，此功能不起作用。n過壓n[ENTER]了解更多過壓報警：關閉范圍：關閉、鎖定、未鎖定分配報警繼電器：報警范圍：報警、報警和輔助2、報警和輔2和輔3、報警和副3、輔助2、輔助2和輔助3、，輔助3過電壓報警傳感器：1.05 x額定1.10 x額定范圍：1.01至1.10 x額定值，步長為0.01過電壓跳閘延遲：3.0 s范圍：0.5至60.0 s，步長為0.1 n相位反轉n[ENTER]，更多相位反轉跳閘：關閉范圍：關閉、鎖定、未鎖定分配跳閘繼電器：跳閘范圍：跳閘、跳閘和輔助2、跳閘和Aux2和Aux3，跳閘和輔助設備3輸入ESCAPE?信息退出信息退出信息離開信息退出信息脫離信息退出信息進入信息退出信息注意GE Multilin 469電機管理繼電器4-59 4設定值
look at all RTDs that have either an alarm or trip programmed and determine if an RTD has either a short or a very low temperature (less than –50°C). Any RTDs that do not have a trip or alarm associated with them will be ignored for this feature. When a short/low temperature is detected, the assigned output relay will operate and a message will appear on the display identifying the RTD that caused the alarm. It is recommended that if this feature is used, the alarm be programmed as latched so that intermittent RTDs are detected and corrective action may be taken. n OPEN RTD SENSOR n [ENTER] for more OPEN RTD SENSOR: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3 OPEN RTD SENSOR ALARM EVENTS: Off Range: On, Off n RTD SHORT/LOW TEMP n [ENTER] for more RTD SHORT/LOW TEMP ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Alarm & Auxiliary3, alarms or trips when the bus is not energized. If this setpoint is programmed to "Yes", at least one voltage must be greater than 20% of the nominal nameplate voltage rating for any alarm/trip. If the load is high inertia, it may be desirable to trip the motor off-line or prevent it from starting in the event of a total loss of line voltage. Programming "No" for this setpoint ensures that the motor is tripped and may be restarted only after the bus is re-energized. If the undervoltage alarm or trip feature is enabled, once the magnitude of either Va, Vb, or Vc falls below the pickup level while running or starting pickup level while starting (for a period of time specified by the delay), a trip or alarm will occur (pickup levels are multiples of motor nameplate voltage). The running pickup level also applies when the motor is stopped and the U/V ACTIVE ONLY IF BUS ENERGIZED setpoint is programmed to "No". An undervoltage on a running motor with a constant load results in increased current. The relay thermal model typically picks up this condition and provides adequate protection. However, this setpoint may be used in conjunction with the time delay to provide additional protection that may be programmed for advance warning by tripping. Attempting to start a large motor when the supply voltage is already down may also be undesirable. An undervoltage of significant proportions that persists while starting a motor may prevent the motor from coming up to rated speed. This may be especially critical for a synchronous motor. This feature may be used in with a time delay to provide protection for undervoltage conditions before On, Off UNDERVOLTAGE TRIP: Off Range: Off, Latched, Unlatched ASSIGN TRIP RELAYS: Trip Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3, Trip & Auxiliary3 UNDERVOLTAGE TRIP PICKUP: 0.80 x RATED Range: 0.60 to 0.99 x ?× OVERVOLTAGE If enabled, once the magnitude of either Va, Vb, or Vc rises above the pickup level for a period of time specified by the delay, a trip or alarm will occur (pickup levels are multiples of motor nameplate voltage). An overvoltage on running motor with a constant load results in decreased current. However, iron and copper losses increase, causing an increase in motor temperature. The current overload relay will not pickup this condition and provide adequate protection. Therefore, the overvoltage element may be useful for protecting the motor in the event of a sustained overvoltage condition. 4.10.3 PHASE REVERSAL PATH: SETPOINTS ?× S9 VOLTAGE ELEMENTS ?× PHASE REVERSAL The 469 can detect the phase rotation of the three phase voltage. If the Phase Reversal feature is turned on when all 3 phase voltages are greater than 50% motor nameplate voltage, and the phase rotation of the three phase voltages is not the same as the setpoint, a trip and block start will occur in 500 to 700 ms. This feature does not work when single VT operation is enabled. n OVERVOLTAGE n [ENTER] for more OVERVOLTAGE ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3 OVERVOLTAGE ALARM PICKUP: 1.05 x RATED 1.10 x RATED Range: 1.01 to 1.10 x RATED in steps of 0.01 OVERVOLTAGE TRIP DELAY: 3.0 s Range: 0.5 to 60.0 s in steps of 0.1 n PHASE REVERSAL n [ENTER] for more PHASE REVERSAL TRIP: Off Range: Off, Latched, Unlatched ASSIGN TRIP RELAYS: Trip Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3, Trip & Auxiliary3 ENTER ESCAPE e e MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE MESSAGE ESCAPE ENTER ESCAPE e e MESSAGE ESCAPE NOTE GE Multilin 469 Motor Management Relay 4-59 4 SETPOINTS
