Power amplifier for proportional valves with manual adjustment
Supply voltage 12… 30V
Input signal ranges (+/-) 10V or 4… 20mA, different signals selectable,
Input resistance analog and digital inputs min. 25 kOhm
Working resistance for 4… 20mA of 390 Ohm
Max. output current 50 mA (digital) and 10mA (reference)
Controller cycle time 1ms
Current controller cycle time 167 µs
PWM generated solenoid current of max. 2.6 A
PWM frequency of 80.... 340 Hz or 2kHz
Optional Dither of 60Hz
Power stage
Analog demand signal setting
PWM controlled output for two solenoids (directional)
PWM controlled output for one solenoid
Technical
Documentation
Application Note:
Commissioning of
power amplifiers
Overview
Power amplifier
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