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NXPP-06C适配器主板
CM-IWS。2用于监测在纯IT交流系统中符合IEC 61557-8。
测量的是系统线路之间的绝缘电阻和系统接地。当低于可调值时阈值，输出继电器切换到故障状态
状态使用CM-IWS。2叠加直流测量信号为用于测量。根据叠加的直流测量电压及其合成电流
待测系统的绝缘电阻为计算特点：
–电源电压24-240 V AC/DC
–输出1 c/o（15-16/18），闭路原理可通过控制输入配置故障存储/闭锁
–测试：正面按钮或控制输入（S1-S3）
–重置：正面按钮或控制输入（S2-S3）
–测量输入L–PE，外部电压高达400伏交流电
–测量范围：1-100 kΩCM-IWS。1和CM-IWN。1个用于监测绝缘接地电阻符合IEC 61557-8IT交流或直流系统。测量的是绝缘电阻系统线路和系统接地之间。坠落时低于可调阈值时，输出继电器切换到故障状态。使用CM-IWS。1和CM-IWN.1将脉动测量信号输入系统监测并计算绝缘电阻。
特点：–电源电压24-240 V AC/DC
–输出1 c/o（15-16/18）
–闭路原理
–可通过控制输入配置故障存储/闭锁
–测量电路中的断线检测
–测试：正面按钮或控制输入（S1-S3）
–重置：正面按钮或控制输入（S2-S3）
–测量输入L–PE，外部电压高达250 V AC和300 V DC
–测量范围：1-100 kΩ
来自CM-IWS的脉动测量信号。1和CM-IWN公司。1根据绝缘改变其形式电阻和系统泄漏电容。从此处开始绝缘电阻的变化预测当预测绝缘电阻对应于在下一个测量周期中计算的绝缘电阻小于设定的阈值，输出继电器被激活或停用，具体取决于在设备配置上。此测量原理是也适用于对称绝缘的检测故障。
特点：
–电源电压24-240 V AC/DC
–输出1 x 2 c/o或2 x 1 c/o（15-16/18、25-26/28）
–开路或闭路原理可选
–可通过控制输入配置故障存储/闭锁
–可配置非易失性故障存储
–两个阈值（预警）和最终关闭
可配置的
–可配置测量电路中的中断线检测
–测试：正面按钮或控制输入（S1-S3）
–重置：正面按钮或控制输入（S2-S3）
–测量输入L–PE，外部电压高达400 V AC和600 V DC
–测量范围：1-100 kΩ，2-200 kΩ
-连接至电压高达690 V AC和1000 V DC CM-IVN
The CM-IWS.2
is used to monitor insulation resistance in accordance with IEC 61557-8 in pure IT AC systems. Measured are insulation resistances between system lines and system earth. When falling below the adjustable threshold values, the output relays switch into the fault state. With CM-IWS.2 a superimposed DC measuring signal is used for measurement. From the superimposed DC measuring voltage and its resultant current the value of the insulation resistance of the system to be measured is calculated. Characteristics: – Supply voltage 24-240 V AC/DC – Output 1 c/o (15-16/18), closed circuit principle – Fault storage / latching configurable by control input – Test: front face button or control input (S1-S3) – Reset: front face button or control input (S2-S3) – Measuring input L – PE with external voltages up to 400 V AC – Measuring range: 1-100 kΩ
The CM-IWS.1 and CM-IWN.1
serve to monitor insulation resistance in accordance with IEC 61557-8 in unearthed IT AC or DC systems. Measured are insulation resistances between system lines and system earth. When falling below the adjustable threshold values, the output relays switch into the fault state. With CM-IWS.1 und CM-IWN.1 a pulsating measuring signal is fed into the system to be monitored and the insulation resistance calculated. Characteristics: – Supply voltage 24-240 V AC/DC – Output 1 c/o (15-16/18) – Closed circuit principle – Fault storage / latching configurable by control input – Broken wire detection in measuring circuit – Test: front face button or control input (S1-S3) – Reset: front face button or control input (S2-S3) – Measuring input L – PE with external voltages up to 250 V AC and 300 V DC – Measuring range: 1-100 kΩ
The pulsating measuring signal
from CM-IWS.1 and CM-IWN.1 alters its form in dependence of the insulation resistance and the system leakage capacitance. From this altered form the change in the insulation resistance is forecast. When the forecast insulation resistance corresponds to the insulation resistance calculated in the next measurement cycle and is smaller than the set threshold value, the output relays are activated or deactivated, depending on the device configuration. This measuring principle is also suitable for the detection of symmetrical insulation faults. Characteristics: – Supply voltage 24-240 V AC/DC – Output 1 x 2 c/o or 2 x 1 c/o (15-16/18, 25-26/28) – Open or closed circuit principle selectable – Fault storage / latching configurable by control input – Non volatile failure storage configurable – Two threshold values (pre-warning) and final switch off configurable – Interrupted wire detection in measuring circuit configurable – Test: front face button or control input (S1-S3) – Reset: front face button or control input (S2-S3) – Measuring input L – PE with external voltages up to 400 V AC and 600 V DC – Measuring range: 1-100 kΩ, 2-200 kΩ – Coupling unit for connection to systems with voltages up to 690 V AC and 1000 V DC CM-IVN
