Specified switch-on sequence
Seite 10 von 16 Application Note – Quick Start Guide for fault clearance and troubleshooting – 1.10
4.2 Operating voltage
If the pressure is on, the operating voltage can be switched on. After switching on the operating voltage the valve
runs a self-test. The red and green LEDs light for approx. 6 s during the test. If the self-test is completed, the green
LED flashes (speed 1 hertz) and displays ready for operation.
4.3 Enable signal
If operating pressure and operating voltage are applied to the valve, the enable signals can be generated. (More
detailed information on this can be found in chapter 5 in this script and in the operating instructions in Section 5).
4.4 Monitored start
If your system is fitted with an additional manual start pushbutton, make sure that the pulse of the pushbutton is
between 0.1 s and 2 s. The start pulse must not be received by the valve until 1 s after the enable signals, otherwise
it will not be acknowledged.
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