About
Component series 1X
Analog, Euro-card format
For valves: 4WS2EE 10, 4WRD 16-3X, 4WRD 25-3X
Features
Voltage input
Controller for valve flow and main control spool position
Oscillator/demodulator for inductive position feedback
Enable input
Output stage with dither signal
Measuring instrument for valve flow display
Reverse polarity protection for the operating voltage
The valve amplifiers operate with a push-pull output stage with bipolar transistors. The output of this output stage can be connected or disconnected by means of an enable circuit (relay K2). The enable is indicated by the LED "H2" on the front plate being illuminated. The switching voltage of all relays is defined by means of jumpers J12 and J13 to either 0 V or +UB (factory +UB).
The output stage consists of an I controller with connected dither signal generator. The amplitude of the dither signal is set by means of R7. The pre-stage (current command value) is controlled via a PD controller. The actual current value returned is simultaneously indicated by the instrument on the front plate.
PARAMETERS
| Parameter Name | Parameter Value |
|---|---|
| AC/DC |
DC
|
| Type |
analog
|
| Output signal |
analog
|
| Product applications |
for valves
|
| Voltage (V) |
24 - 24
|
