DO880 3BSE028602R1指示LED和模块的隔离屏障
The outputs are currentlimited and protected
against over temperature. Each output channel consists of a current
limited and over temperature protected high side driver, EMC
protection components, inductive load suppression, output state
indication LED and an isolation barrier to theModulebus.
Features and benefits
16 channels for 24 V d.c. current sourcing outputs in one isolated group
Redundant or single configuration
Loop monitoring, supervision of short and open loadwith configurable limits (see table Table 97).
Diagnostic of output switches without pulsing on outputs
Advanced on-board diagnostics
Output status indicators (activated/error)
Degraded mode for normally energized channels (supported fromDO880 PR:G)
Currentlimitation at short circuit and over-temperature protection of switches
Faulttolerance of1(as defined in IEC 61508) for output drivers. For ND (Normally De-energized)
systems, outputs can still be controlledwith error on output drivers
输出受到电流限制和保护
防止温度过高。每个输出通道由一个电流组成
有限和过热保护的高侧驱动器,EMC
保护组件、电感负载抑制、输出状态
指示LED和模块的隔离屏障。
功能和优点
一个隔离组中用于24 V直流电流源输出的16个通道
冗余或单一配置
回路监测,具有可配置限值的短负载和开路负载的监督(见表97)。
输出开关无脉冲的诊断
高级车载诊断
输出状态指示灯(激活/错误)
正常通电通道的降级模式(由DO880 PR:G支持)
开关短路电流限制和过热保护
输出驱动器的容错率为1(如IEC 61508中所定义)。对于ND(正常断电)
系统,输出仍然可以通过输出驱动器上的错误进行控制
根据IEC 61508认证SIL3
根据EN 954-1认证为4类
