1407-CGCM模塊,1407-CGCM如何使用
觀察輸出塊N處的LVDT二次電壓并等待值停止更改。
8.如果輸出塊N的100%位置大于8.5 V，然后通過將規(guī)范S16設(shè)置為下一個較低的增益來降低解調(diào)器增益值，并重復(fù)步驟7。
在步驟4中確定：a、 轉(zhuǎn)到S6中指定的塊，并將其調(diào)整為0%。
b、 觀察輸出塊N處的LVDT二次電壓并等待值停止更改。當(dāng)值停止更改，讀取最終值并驗證其是否正確可接受。LVDT 0%值均不應(yīng)大于小于-5 V，LVDT 100%值均不應(yīng)為小于5 V。
1407-CGCM模塊10.如果存在冗余LVDT變壓器，則對備用LVDT變壓器重復(fù)此步驟。選擇備份方式更改S3的值以選擇其他LVDT變壓器。
對于冗余LVDT變換，使用兩個增益中的最低增益。驗證兩個LVDT變壓器仍在范圍內(nèi)。
如果任何LVDT變壓器不在范圍內(nèi)，請參閱第6節(jié)和表6-5以獲取有關(guān)糾正LVDT的信息回答
在調(diào)諧控制增益之前，校準(zhǔn)LVDT變壓器。有關(guān)詳細(xì)信息，請參閱初始校準(zhǔn)（功能代碼55）
LVDT校準(zhǔn)程序
Observe the LVDT secondary voltage at the output block N
and wait until the value stops changing.
8. If the 100% position at output block N is greater than
8.5 V, then decrease the value of the demodulator gain by setting specification S16 to the next lower gain and repeat Step 7.
9. If the demodulator gain has been changed from the value
determined in Step 4:
a. Go to the block specified in S6, and tune it to 0%.
b. Observe the LVDT secondary voltage at output block N
and wait until the value stops changing. When the value
stops changing, read the final value and verify that it is
acceptable. None of the LVDT 0% values should be greater
than -5 V and none of the LVDT 100% values should be
less than 5 V.
10. If there are redundant LVDT transformers, repeat this procedure for the backup LVDT transformer. Select the backup by
changing the value of S3 to select the other LVDT transformer.
Use the lowest of the two gains for redundant LVDT transformers. Verify that both LVDT transformers are still within range.
If any LVDT transformer is not within range, refer to Section 6and Table 6-5 for information on correcting the LVDT
response.
11. Calibrate the LVDT transformer before tuning the controller gain. Refer to Initial Calibration (Function Code 55) for
the LVDT calibration procedure.
