IS200GGXDG1A模拟量模块
““A”型电源使用0.25“x 1.25”保险丝。“B”和任何更高版本使用5 x 20mm保险丝。过电流/短路保护所有输出都受到过电流和短路保护，故障消除后自动恢复。三个输出中的每一个都提供了电子电流限制。任何输出上的过载将导致电压崩溃，并可能导致其他输出电压崩溃。卸载过载后，将恢复正常操作。VMEbus电源监视器接口定时ACFAIL#当不再提供电源输入时，当ON/OFF开关断开时，或当所需的DC输出电压水平不在规格范围内时，ACFAIL*信号被下拉。ACFAIL#信号在输出低于其指定限值之前至少5ms被断言，以向系统提供即将发生电源故障的充分警告。SYSRESET#RX7i电源不驱动VME背板上的SYSRESET号信号。RX7i CPU模块控制SYSRESET#信号。过热和气流保护RX7i电源具有内部温度感应功能，当过热时可关闭输出通道。一旦装置冷却，超温故障允许自动恢复。低容量电源能够在0至60ºC的全容量（100W）下运行，仅需对流冷却。高容量电源能够在0至60ºC的全容量（350W）下运行，由安装在系统机箱下方的风扇托盘提供70 CFM的强制空气冷却。高容量350W电源只能在对流冷却的情况下以有限的容量运行。参见下一页的温度降额曲线。RX7i电源3 GFK-2237A温度降额曲线负载（%）100 80 60 40 20 0 20 25 30 40 50 60 70温度（°C）85Vac 120Vac 220Vac/240Vac/300Vac负载（%，100 80 60 20 20 25 30 50 60 70℃100Vdc/125Vdc 150Vdc在120/240Vac/125Vdc和350W电源中提供气流传感器，以检测风扇故障或空气堵塞。如果电源检测到气流停止，它将通过关闭所有输出并打开超温LED指示灯做出响应。需要重新通电才能从锁定状态恢复。您可以通过位于电源外部的跳线启用或禁用气流传感器。气流传感器选项已启用（针脚1和2上的跳线），作为每个电源的默认设置。要禁用空气流量传感器，请将跳线置于针脚2和3上。安装在P3针脚1和2上的前面板跳线（气流传感器启用）针脚2和3上的跳线禁用气流传感器。气流传感器跳线的位置–顶视图4 RX7i电源GFK-2237A安装警告当电源或任何外部连接的电源打开时，请勿移除（或插入）模块。可能存在危险电压。可能会导致人身伤害、模块损坏或受控设备或过程的不可预知操作。此电源是一个插件模块，安装在任何标准RX7i机架的最左侧插槽中。有关更多安装信息，请参阅PACSystems RX7i安装手册GFK-2223。现场接线连接输入端子位于电源的前面板上。顶部两个端子（L1|+和L2/N|-）用于120/240 VAC和125 VDC输入。电源输入连接应采用额定温度为75°C（167°F）的AWG#16（1.3 mm2）铜线。每个端子可以接受两条实心或绞合导线，但任何给定端子中的导线应具有相同的类型和尺寸。端子可接受AWG#12的单线连接。所有导线长度应剥除至0.25”（7mm）。较长的剥线长度将导致电线裸露，这是潜在的电击危险。建议将电源的GND（接地）端子连接到机架的GND端子，并使用额定温度为75°C（167°F）的AWG#12（3.3 mm2）铜线接地，以确保充分接地。建议对接地端子上的每条导线使用螺母和星形垫圈。机架接地螺柱（8-32）#12（3.3 mm2）接地线输入75°C铜扭矩12 in-lb（1.3 N-m）导线更换为相同类型和额定值2A/250V L1 120/240VAC
A” version of the power supplies used 0.25” x 1.25” fuses. The “B” and any later versions use 5 x 20mm fuses. Overcurrent/Short Circuit Protection All outputs are protected against overcurrent and short circuit with automatic recovery upon removal of fault. An electronic current limit is provided on each of the three outputs. An overload on any output will cause the voltage to collapse and may cause the other output voltages to collapse. Normal operation will resume after removal of the overload. VMEbus Power Monitor Interface Timing ACFAIL# The ACFAIL# signal is pulled down when the power supply inputs are no longer being provided, when the ON/OFF switch is OFF, or when the required DC output voltage levels are not within specifications. The ACFAIL# signal is asserted at least 5ms before outputs fall below their specified limits to provide sufficient warning to the system of imminent power failure. SYSRESET# The RX7i power supplies do not drive the SYSRESET# signal on the VME backplane. The RX7i CPU module controls the SYSRESET# signal. Over Temperature and Air Flow Protection The RX7i power supplies have internal temperature sensing that shuts down the output channels when overheated. The overtemperature failure allows automatic recovery once the unit cools down. The low capacity power supply is capable of operating at full capacity (100W) from 0 to 60ºC with only convection cooling. The high capacity power supply is capable of operating at full capacity (350W) from 0 to 60ºC with 70 CFM forced air cooling provided by a fan tray mounted below the system chassis. The high capacity 350W power supply can operate at a limited capacity with only convection cooling. See the temperature derating curves on the next page. RX7i Power Supplies 3 GFK-2237A Temperature Derating Curves Load (%) 100 80 60 40 20 0 10 20 25 30 40 50 60 70 Temperature (°C) 85Vac 120Vac 220Vac/240Vac/300Vac Load (%) 100 80 60 20 0 10 20 25 30 40 50 60 70 Temperature (°C) 100Vdc/125Vdc 150Vdc An airflow sensor is provided in the 120/240VAC/125VDC and 350W power supplies to detect a fan failure or air blockage. If the power supply senses a cessation of air flow, it responds by latching off all outputs and turning on the overtemperature LED indicator. A power cycle is required to recover from this latched condition. You can enable or disable the airflow sensor via a jumper located on the outside of the Power Supply. The airflow sensor option is enabled (jumper on pins 1 and 2) as the default for each power supply. To disable the airflow sensor, place the jumper on pins 2 and 3. Front Panel Jumper installed on pins 1 & 2 of P3 (Airflow sensor enabled) Jumper on pins 2 & 3 disables airflow sensor. Location of Airflow Sensor Jumper – Top View 4 RX7i Power Supplies GFK-2237A Installation Warning Do not remove (or insert) modules when the power supply or any externallyconnected power sources are on. Hazardous voltages may exist. Personal injury, damage to the module, or unpredictable operation of the device or process being controlled may result. This Power Supply is a plug-in module that is installed in the leftmost slot of any standard RX7i rack. For additional installation information, refer to PACSystems RX7i Installation Manual, GFK-2223. Field Wiring Connections The input terminals are located on the front faceplate of the power supply. The top two terminals (L1|+ and L2/N|-) are for 120/240 VAC and 125 VDC inputs. Power input connections should be made with copper AWG #16 (1.3 mm2 ) wire rated for 75°C (167°F). Each terminal can accept two solid or stranded wires, but the wires into any given terminal should be the same type and size. The terminal can accept a single wire connection up to AWG #12. All wire lengths should be stripped to 0.25” (7mm). Longer stripping lengths will result in exposed power wires, which is a potential shock hazard. It is recommended that the GND (ground) terminal on the power supply be connected to the GND terminal on the rack and to earth using copper AWG #12 (3.3 mm2 ) wire rated for 75°C (167°F) to ensure adequate grounding. Use of a nut and star washer for each wire on the ground terminal is recommended. Rack Grounding Stud (8-32) #12 (3.3 mm2 ) Ground Wire INPUT 75°C Copper Torque 12 in-lb (1.3 N-m) Conductors Replace with same type and rating 2A/250V L1 120/240VAC
