5X00354G01 模块备件

5X00354G01 

542plus开关间保护和控制单元
手册第3部分：安装和调试
1VTA10004 en DMS，2001-10-04参考542 Plus：安装和调试45/80
表12：工厂测试模式下的所有可用命令
命令描述
s将时间设置为RTC
a设置a/D校准参数
p显示A/D校准参数
w测试DSP看门狗
f测试快速I/O和DSP跳闸中断
g GPS IRIG-B测试
b测试二进制I/O板
k进入DSP校准模式
r读通信板版本
u显示DSP RAM测试结果
h显示帮助（如当前表格）
从表中可以看出，可以通过选择进入校准模式
在该模式下，可以补偿REF542plus单元中用于进一步处理模拟输入信号的信号调节链的偏移误差。此外，可以定义到连接器X80的连接。之后
校准数据存储在模拟输入板上的EEPROM上。
校准程序需要进行以下准备：

正弦发电机，如第6.2.1章所述。

插入跳线X12，该跳线位于背板连接器附近。
6.3.3.1变压器输入板
该板必须在X80连接器处提供，并具有：
1A，50Hz，1A电流输入引脚的精度等级为0.5

0,2A，50Hz，0,2A电流输入引脚的精度等级为0.5，常开
输入通道7和/或8

100 V RMS，50 Hz。电压输入的精度等级为0.5
注：在校准过程中，所有用于校准的信号必须同相！
6.3.3.2传感器输入板
该板必须在X81…X88连接器处同时提供2V、50Hz的信号，精度等级为0.5
注：在校准过程中，所有用于校准的信号必须同相！
REF 542plus开关间保护和控制单元
手册第3部分：安装和调试
1VTA10004 en DMS，2001-10-04参考542 Plus：安装和调试46/80
6.3.3.2混合输入板
在这种情况下，必须在以下位置提供电路板：

X80电流输入，1A，50Hz，精度等级0.5

X80电压输入，100V，50Hz。精度等级为0.5

X81..X86，2 V，50 Hz精度等级0.5
注：在校准过程中，所有用于校准的信号必须同相！
6.3.3.4校准程序
在开始校准程序之前，保护装置外壳必须：
接地的。除此之外，模拟输入板上的屏蔽螺钉也必须在。
注意：在开始校准程序之前，必须将跨接导线X12插入
打开所有用于运行校准程序的输入信号后，可以：
起动。对于每个可能的模拟输入通道（从1到8），以下选择：
必须做到：
如果所述输入是电流互感器（1A）。

v，如果输入是电压互感器（100V）。

s，如果输入为传感器（2V）

x，如果您想跳过通道的校准。
输入第8通道输入设置后，校准程序自动开始
校准系数的计算，几秒钟后结束。报告
在相应的输入线上显示具有通道精度的校准结果。在里面
如果输入连接错误，将报告相位错误。以下
图显示了相位误差情况下校准程序返回的消息。

5X00354G01 

5X00354G01 

542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04 REF542plus: Installation and Commissioning 45 / 80
Table 12: All available commands on the factory test mode
Command Description
s set time to RTC
a set A/D calibration parameter
p display A/D calibration parameter
w test DSP watchdog
f test fast I/O and DSP trip interrupt
g GPS IRIG-B test
b test binary I/O board
k enter DSP calibration mode
r read communication board version
u show DSP RAM test result
h show help (e.g. the present table)
As can be seen from the table the calibration mode can be entered by selecting the
command k. In this mode the offset errors of the signal conditioning chain for the further processing of the analog input signals in the REF542plus unit can be compensated. Moreover the connections to the connector X80 can be defined. Afterwards the
calibration data are stored on the EEPROM on the Analog Input Board.

The calibration procedure needs the following preparation:

Sinusoidal generator as already mentioned in chapter 6.2.1.

Put in the jumper X12, which is located near to the back plane connector.
6.3.3.1 Transformer Input Board
The board must be supplied at X80 connector with:

1A, 50 Hz with accuracy class 0.5 at the 1A current inputs pins

0,2A, 50 Hz with accuracy class 0.5 at the 0,2A current inputs pins, normally on
input channel 7 and/or 8

100 V RMS, 50 Hz. with accuracy class 0.5 at the voltage inputs

Note During the calibration procedure all signals used calibration must be in phase!
6.3.3.2 Sensor Input Board
The board must be supplied at the X81…X88 connectors at the same time with signals of 2V, 50 Hz with an accuracy class 0.5

Note During the calibration procedure all signals used calibration must be in phase! 
REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04 REF542plus: Installation and Commissioning 46 / 80
6.3.3.3 Mixed Input Board
In this case the board must be supplied at

X80 current inputs with 1A, 50 Hz with accuracy class 0.5

X80 voltage inputs with 100V, 50 Hz. with accuracy class 0.5

X81..X86 with 2 V, 50 Hz accuracy class 0.5

Note During the calibration procedure all signals used calibration must be in phase!
6.3.3.4 Calibration procedure
Before starting the calibration procedure, the protection unit housing must be
grounded. Beside that, the shielding screw on the analog input board must also be in.

Caution Before starting the calibration procedure, the jumper X12 must be put in
After switching on all the input signals for running the calibration procedure can be
started. For each possible analog input channel (from 1 to 8) the following selection
must be done:

c, if the input is a current transformer (1A).

v, if the input is a voltage transformer (100V).

s, if the input is a sensor (2V)

x, if you like to skip the calibration for the channel.
After entered 8th channel input settings the calibration procedure starts automatically
the calculation of calibration factors and after some seconds, it ends. The report
shows at the corresponding input lines the calibration result with channel accuracy. In
case of wrong connections to the input a phase error will be reported. The following
figure shows the returned messages of the calibration procedure in case of phase error.