Optimized control of proportional valves with PWM

The EL2535-xxxx output terminals are specially designed for the

precise control of single and double-coil proportional valves and

proportional solenoid valves. They regulate the output current

through pulse width modulation (PWM) of the supply voltage

and are electrically isolated from the E-bus. The current values

(0 to maximum output current) are specified by the automation

device through a 16-bit value. The output stages are protected

against overload and short circuit. Each EtherCAT pulse width

current terminal contains two channels whose signal state is

indicated by LEDs. The light emitting diodes simplify local

diagnosis by displaying typical load and wiring faults.

Special features:

• 2 PWM outputs with push-pull output stage

• suitable for inductive loads > 1 mH

• max. output current ±2 A per channel at 24 V DC nominal voltage