GE DS3800XAIB1E1E输出模块
•U/V操作所需的相位：选择在所选输出继电器运行之前必须检测到欠压条件的最小相位数。如果VT接线设置为单相直接，则该设置点不可见。•检测电压低于20V：如果需要电压损失指示，则选择该设置点的“是”。如果选择NO（否），且任何一个电压输入施加的电压小于20 V，则将禁用欠压功能。•过压继电器：过压可以禁用，用作报警或过程控制。如果不需要此功能，则将此设置点设置为关闭。选择报警继电器将使报警继电器激活，并在出现过电压情况时显示报警信息。选择辅助继电器将导致辅助继电器在过电压条件下激活，但不会显示任何信息。这用于过程控制。
• PHASES REQ’D FOR U/V OPERATION: Select the minimum number of phases on which the undervoltage condition must be detected before the selected output relay will operate. This setpoint is not visible if VT WIRING is set to SINGLE PHASE DIRECT. • DETECT UNDERVOLTAGE BELOW 20V: If an indication is required for loss of voltage, select YES for this setpoint. If NO is selected and any one of the voltage inputs has less than 20 V applied, the undervoltage feature will be disabled. • OVERVOLTAGE RELAY: Overvoltage can either be disabled, used as an alarm or as a process control. Set this setpoint to off if the feature is not required. Selecting alarm relay will cause the alarm relay to activate and display an alarm message whenever an overvoltage condition exists. Selecting auxiliary relay will cause the auxiliary relay to activate for an overvoltage condition but no message will be displayed. This is intended for process control.
