HIER466665R0099处理模块,HIER466665R0099使用手册
该模块监控过载条件的输出，并检查开关的实际状态与指令状态相反。万一过载或开关状态错误，块报告：开关故障。短路/过电流保护：诊断保护单个输出电路防止过电流。对于源块，加载通常会对电源的直流侧短路。用于水槽块时，负载通常对直流+侧短路。如果指令输出接通，且电流超过5安培持续1毫秒，电路自动关闭，故障开关消息已发出。
HIER466665R0099处理模块必须通过将电源循环至阻塞，或通过从手持设备发送清除故障命令监视器或总线控制器。浪涌电流：源块和汇块均处理稳态正常运行期间的负载为0.5安培。浪涌电流保护确定在0.5安培之间安全切换负载的条件。首先，该块必须配置手持式监视器，以：输入其设备编号（串行总线地址）。输入其参考号（仅IC600和IC550需要）仅适用于系列PLC）。此外，除非块上的所有电路都是输入，否则块I/O类型必须设置为程序块上的输出或组合ID屏幕。注意：如果块脱机配置，则必须正确接地并在其串行1和串行2之间安装一个75欧姆的电阻器终端。其余功能可以使用手持式监视器，或通过从主持人。和4安培。下表显示了允许的浪涌瞬态。
The block monitors outputs for overload conditions, and checks the
actual state of the switch against the commanded state. In case of
overload or wrong switch state, the block reports: FAILED SWITCH.
Short Circuit/Overcurrent Protection: diagnostics protect individual
output circuits against excess current. For Source blocks, the load
usually gets short-circuited to the DC- side of the supply. For Sink
blocks, the load usually gets short-circuited to the DC+ side.
If the output is commanded to go on and current exceeds 5 Amps for 1
ms, the circuit is automatically turned off and the FAILED SWITCH
message issued. The circuit must be reset by cycling power to the
block, or by sending a CLEAR FAULTS command from the Hand-held
Monitor or the Bus Controller.
Surge Currents: Both Source and Sink blocks handle steady-state
loads of 0.5 Amps during normal operation. Surge current protection
determines conditions for safely switching loads between 0.5 Amps First, the block must be configured with a Hand-held Monitor to:
Enter its Device Number (serial bus address).
Enter its Reference Number (required only for IC600 and IC550
series PLCs only).
In addition, unless all circuits on the block will be inputs, the Block I/O
Type must be set to either Outputs or Combination on the Program Block
ID screen.
Note: If a block is configured offline, it must be properly grounded and
have a 75 Ohm resistor installed across its Serial 1 and Serial 2
terminals.
The rest of the features can be configured either using a Hand-held
Monitor, or by sending a Write Configuration datagram to the block from
the host.and
4 Amps. The following chart shows allowable surge transients.
