ABB 07KT98 GJR5253100R3160编程逻辑控制器
环境要求下表列出了MVME7100环境特性的当前可用规范。MVME7100基板的完整功能描述见第4章“功能描述”。2.3.2电源要求MVME7100仅使用VMEbus背板的+5.0V。车载电源为各种IC产生所需的电压。MVME 7100将+12V和-12V电源从背板连接到PMC站点，而向PMC站点提供的+3.3V电源来自+5.0V背板电源。PMC现场最多可获得10 A的+3.3V电源，但必须遵守90W+5.0V的限制以及任何冷却限制。工作温度是指在电路板周围循环的空气的温度，而不是部件温度。工作温度0°C至+55°C（32°F至131°F），强制空气冷却时进入空气–40°C至+85°C
Environmental Requirements The following table lists the currently available specifications for the environmental characteristics of the MVME7100. A complete functional description of the MVME7100 baseboard appears in Chapter 4, Functional Description. 2.3.2 Power Requirements The MVME7100 uses only +5.0V from the VMEbus backplane. On board power supplies generate the required voltages for the various ICs. The MVME 7100 connects the +12V and -12V supplies from the backplane to the PMC sites while the +3.3V power supplied to the PMC sites comes from the +5.0V backplane power. A maximum of 10 A of +3.3V power is available to the PMC sites, however the 90W +5.0V limit must be observed as well as any cooling limitations. Operating temperatures refer to the temperature of the air circulating around the board and not to the component temperature.Operating temperature 0°C to +55°C (32°F to 131°F) entry air with forced-air cooling –40°C to +85° C (-40°F to 185°F) Temperature change +/-0.5° C/min according to NEBS Standard GR-63-CORE Relative humidity 5% to 90% noncondensing 5% to 90% noncondesning
