GE通用電氣VMIVME-3125A-200000卡件產(chǎn)生

下行斜坡發(fā)生器[4]從給定的階梯輸入信號生成斜坡形輸出信號。這個該信號的時間常數(shù)可單獨調(diào)整：

上下方向通過兩個電位計。指定的斜坡時間是指100%的命令值步長，并且可以是大約1s或5s，取決于通過DIL開關(guān)2的設(shè)置）。如果小于100%的命令值步長切換到斜坡發(fā)生器輸入，或者如果衰減器[3]有效，斜坡時間將相應(yīng)地更短。對于類型VT-VSPA1-1，以下適用：外部“上升/下降”觸點，向上和向下斜坡時間可單獨設(shè)置為其最小值（約30ms）。

對于VT-VSPA1K-1型，以下適用：外部“斜坡關(guān)閉”觸點，向上和向下斜坡時間可設(shè)置為其最小值（約30ms）。斜坡發(fā)生器[4]輸出信號被轉(zhuǎn)發(fā)到求和放大器[5]作為電流指令值。在這里+6 V的電壓對應(yīng)于指令值為100%。

在求和放大器[5]中

特性曲線生成器[6或7]添加到命令值（可通過DIL選擇開關(guān)2）取決于要控制的閥）。這個電流指令值可通過可連接低通濾波。電流輸出級[9]由電流控制器[8]控制。在電流控制器中，電流指令值還被調(diào)制使用時鐘發(fā)生器信號[10]（頻率可以使用DIL開關(guān)2編程）。在閥螺線管中，時鐘實際電流值的作用類似于恒定電流

具有疊加的抖動信號。VT-VSPA1-1型具有：內(nèi)部命令值和實際值。

對于命令值：+6 V，以下為真：? 100%

以下為實際值：1 mV? 1毫安

“運行準(zhǔn)備就緒”信號輸出，“H2”LED

前板上（帶VSPA1-1）或“H2”LED

（帶VSPA1K-1）在以下情況下點亮：

? 電磁線圈導(dǎo)體不存在短路，并且輸出級沒有過載，

? 命令值可用（電纜斷裂檢測），

? 電磁線圈導(dǎo)線沒有電纜斷裂。對于VT-VSPA1-1型（組件系列10）

BR22開關(guān)必須設(shè)置為“ON”，并且必須將“R130”電位計旋轉(zhuǎn)到左側(cè)止動位置，以便設(shè)置校正特性曲線。

VT-VSPA1-1型（來自部件系列11）和VT-VSPA1K-1型，開關(guān)S21和S22沒有任何效應(yīng)無需操作“Zw”電位計。

The down-stream ramp generator [4] generates a rampshaped output signal from a given stepped input signal. The

time constant of this signal can be separately adjusted for

the upwards and downwards direction by means of two

potentiometers. The specified ramp time refers to a command value step of 100 % and may be approx. 1 s or 5 s,

depending on the setting by means of a DIL switch 2). If

a command value step of less than 100 % is switched to the

ramp generator input or if the attenuator [3] is effective,

the ramp time will be correspondingly shorter.

To type VT-VSPA1-1, the following applies: By means of the

external "ramp up/down off" contacts, the upwards and

downwards ramp times can be separately set to their minimum value (approx. 30 ms).

To type VT-VSPA1K-1, the following applies: By means of

the external "ramp off" contact, the upwards and downwards ramp times can be set to their minimum value

(approx. 30 ms) together.The ramp generator [4] output signal is forwarded to the

summing amplifier [5] as current command value. Here,

a voltage of +6 V corresponds to a command value

of 100 %.

In the summing amplifier [5], the output signals of the

characteristic curve generators [6 or 7] are added to the

command value (can be selected by means of DIL

switches 2) depending on the valve to be controlled). The

current command value can be filtered by means of a connectible low pass. The current output stage [9] is controlled using the current controller [8]. In the current controller, the current command value is moreover modulated

with the clock generator signal [10] (frequency can be

programmed using the DIL switch 2)). In the valve solenoid,

the clocked actual current value acts like a constant current

with superimposed dither signal. Type VT-VSPA1-1 has

measuring sockets for the internal command value and the

actual value.

The following is true for the command value: +6 V ? 100 %

The following is true for the actual value: 1 mV ? 1 mA

The "ready for operation" signal is output and the "H2" LED

on the front plate (with VSPA1-1) or the "H2" LED

(with VSPA1K-1) is illuminated if:

? there is no short-circuit of the solenoid conductors and

no overload of the output stage,

? a command value is available (cable break detection),

? there is no cable break of the solenoid conductor.With type VT-VSPA1-1 (component series 10), the

BR22 switch must be set to "ON" and the "R130" potentiometer must be rotated to the left stop in order to set the

correct characteristic curve.

With type VT-VSPA1-1 (from component series 11) and

type VT-VSPA1K-1, switches S21 and S22 do not have any

effect. The "Zw" potentiometer does not have to be operated.