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(gè)該信號的時(shí)間常數可單獨調整：
上下方向通過(guò)兩個(gè)電位計。指定的斜坡時(shí)間是指100%的命令值步長(cháng)，并且可以是大約1s或5s，取決于通過(guò)DIL開(kāi)關(guān)2的設置）。如果小于100%的命令值步長(cháng)切換到斜坡發(fā)生器輸入，或者如果衰減器[3]有效，斜坡時(shí)間將相應地更短。對于類(lèi)型VT-VSPA1-1，以下適用：外部“上升/下降”觸點(diǎn)，向上和向下斜坡時(shí)間可單獨設置為其最小值（約30ms）。
對于VT-VSPA1K-1型，以下適用：外部“斜坡關(guān)閉”觸點(diǎn)，向上和向下斜坡時(shí)間可設置為其最小值（約30ms）。斜坡發(fā)生器[4]輸出信號被轉發(fā)到求和放大器[5]作為電流指令值。在這里+6 V的電壓對應于指令值為100%。
在求和放大器[5]中
特性曲線(xiàn)生成器[6或7]添加到命令值（可通過(guò)DIL選擇開(kāi)關(guān)2）取決于要控制的閥）。這個(gè)電流指令值可通過(guò)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，電流指令值還被調制使用時(shí)鐘發(fā)生器信號[10]（頻率可以使用DIL開(kāi)關(guān)2編程）。在閥螺線(xiàn)管中，時(shí)鐘實(shí)際電流值的作用類(lèi)似于恒定電流
具有疊加的抖動(dòng)信號。VT-VSPA1-1型具有：內部命令值和實(shí)際值。
對于命令值：+6 V，以下為真：? 100%
以下為實(shí)際值：1 mV? 1毫安
“運行準備就緒”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(diǎn)亮：
? 電磁線(xiàn)圈導體不存在短路，并且輸出級沒(méi)有過(guò)載，
? 命令值可用（電纜斷裂檢測），
? 電磁線(xiàn)圈導線(xiàn)沒(méi)有電纜斷裂。對于VT-VSPA1-1型（組件系列10）
BR22開(kāi)關(guān)必須設置為“ON”，并且必須將“R130”電位計旋轉到左側止動(dòng)位置，以便設置校正特性曲線(xiàn)。
VT-VSPA1-1型（來(lái)自部件系列11）和VT-VSPA1K-1型，開(kāi)關(guān)S21和S22沒(méi)有任何效應無(wú)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.
