Basic Function - Burkert 8605 KK Instructions De Service

6.1.2 leds during operation without operating unit
During operation of the Control Electronics 8605 without operating unit, the
operating status is indicated by two LEDs.
Illustration 6-2: LEDs on version without operating unit
6.2 Basic function
The Control Electronics, Type 8605, is suitable for the control of all Bürkert
proportional valves with a max. current in the range from 40 to 2000 mA.
It transforms an external standard signal into a pulse-width modulated volt-
age signal (PWM) that is supplied to the solenoid coil of the proportional
valve (see Illustration 6-3: Basic function of the Control Electronics, Type
8605). A given value of the average coil current is thereby assigned to each
value of the input signal. The proportional opening of the valve can be set via
the coil current.
0 ... 5/10 V
0/4 ... 20 mA
Illustration 6-3: Basic function of the Control Electronics, Type 8605
0 to 5 V, 0 to 10 V, 0 to 20 mA or 4 to 20 mA can be set as standard sig-
nals.
16 - 8605
LED green
LED yellow
standard
p
1
Legend
1 green: Device in operation
2 yellow: Current through valve Current through valve
load