Eaton ER9.3-10 - Features

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Features
The digital amplifier and controller card ER9.3-10 is used for displacement control SP of EATON
variable piston pumps in X and W design. The swash plate is positioned by a Vickers Proportional
Valve KDG4V-3. The digital amplifier and controller card meet the industrial standard for EMC
EMV 89/336/EEC, which ensures a high interference security and low interference emission. The
electronic card is tested according to DIN EN 60068-2-6 (vibration) and DIN EN 60068-2-27
(mechanical shock). The electronic card features a display and six buttons to change the card
parameters. Parameterisation of the digital amplifier and controller card is also possible by using the
enclosed software tool ER9.3-Tool via a serial RS232 interface.
The system features are:
• Differential amplifier input for set points in the range of 0 … ± 10V, 14 bit resolution.
• Additional single ended, independent set point inputs, (one for the range of 0 … ± 10V, 14 bit
resolution; the other for the range of 0 ... 20 mA / 4 ... 20 mA , 14 bit resolution).
• Integrated reference supply voltage of ± 10 V (10 mA max.), to supply set point potentiometer or
actual value transducer.
• Four storable and adjustable digital set points (one additional point is optional)
• Two, independent, analog set point inputs with 14 bit resolution and a high adjustment range
(depending on input 0 ... 12 V or 0 ... 20 mA / 4 ... 20 mA).
• Direction externally set through “+“ and “-“ inputs.
• Enable signal for output stages.
• Ramp function and Reset-Ramp for fast ramp function zeroing.
• Status outputs: Error and Comparator
• All digital inputs and outputs are optically isolated for functional security.
• Four 7-segment displays and six buttons for display and functionality ease.
• Function indication through front panel by LEDs.
• Additional switching output (24 V, max 1A) to directly disable safety valve.
• Additional front panel test jacks for easy commissioning.
• Serial interface RS232.