Mirco GF1-10TVD-100微型创新屏,GF1-10TVD-100产品重量
•校准模式启用必须设置为禁用，<S11>=0。
•LVDT状态必须良好。要执行空检查：
1.转到S7中指定的块地址。将LVDT设置为空将主LVDT变压器的模式检查为1。
2.转到S11中指定的块地址。设置校准模式启用为1。这将IMHSS03模块置于校准模式。
3.转到S12中指定的块地址。设置通过/保持选择至1（GO）。
4、等待所选LVDT变压器处于零位标志在块输出N+7位7中设置。
Mirco GF1-10TVD-100微型创新屏5、对伺服阀和LVDT位置，将致动器调整至其机械零位位置对于最大LVDT线性，LVDT零点应发生在执行器的中行程位置。当S12为在GO模式下，执行器斜坡至LVDT并保持在LVDT零点（LVDT二次电压相等）。而致动器保持在LVDT零位，机械零位开启LVDT变压器可以调整，直到致动器处于其中点位置。
6.如果有冗余LVDT变压器，请转至模块S7中规定的地址。将LVDT null check mode设置为2备用LVDT变压器。
7.重复步骤4和5。
8.调整完成后，设置GO/HOLD select将校准模式启用设置为0（保持），然后将校准模式启用设置为0（禁用）将null check设置为0（禁用）。自动调谐（功能代码55）要开始自动调谐，MFP模块必须与IMHSS03模块通信，并满足以下条件必须满足：•涡轮机离线。•伺服阀或I/H转换器（用于涡轮机液压系统）必须处于控制位置并正常工作正确地
•多功能处理器模块的功能代码为55在其配置中。
•
Calibrate mode enable must be set to disable, <S11> = 0.
•
LVDT status must be good.
To perform the null check:
1. Go to the block address specified in S7. Set the LVDT null
check mode to 1 for the primary LVDT transformer.
2. Go to the block address specified in S11. Set the calibrate
mode enable to 1. This places the IMHSS03 module into cali
brate mode.
3. Go to the block address specified in S12. Set the GO/HOLD
select to 1 (GO).
4. Wait until the selected LVDT transformer at null point flag
is set in block output N+7, bit 7.
5. Make the necessary adjustments to the servo valve and the
LVDT position to adjust the actuator to its mechanical null
position. For maximum LVDT linearity, the LVDT null point
should occur at the actuator’s midtravel position. When S12 is
in the GO mode, the actuator ramps to and holds at the LVDT
null point (LVDT secondaries have equal voltages). While the
actuator is held at the LVDT null point, the mechanical zero on
the LVDT transformer can be adjusted until the actuator is at
its midpoint position.
6. If there are redundant LVDT transformers, go to the block
address specified in S7. Set the LVDT null check mode to 2 for
the backup LVDT transformer.
7. Repeat Steps 4 and 5.
8. When the adjustments are complete, set GO/HOLD select
to a 0 (HOLD), set calibrate mode enable to a 0 (DISABLE) and
set null check to 0 (DISABLE).
AUTOMATIC TUNING (FUNCTION CODE 55)
To start automatic tuning, the MFP module must be communi
cating with the IMHSS03 module and the following conditions
must be met:
•
The turbine is off-line.
•
The servo valve or I/H converter (for turbine hydraulic sys
tem) must be in the controlling position and functioning
properly.
•
The multi-function processor module has function code 55
in its configuration.
