Burkert 8681 - Page 41

41
24VDC - Design
Solenoid valves:
  Typ.switchingcapacity:     0.9W(persolenoidvalve,for200msafterswitchingon)
  Typ.continuousoutput:     0.6W(persolenoidvalve,from200msafterswitchingon)
Power consumption per solenoid valve: 50 mA at 12 V DC
25 mA at 24 V DC
22 mA at 28 V DC
  Operatingmode:     Long-termoperation(100%ED)
Central display of switching statuses: approx. 42 mA with a power supply of 24 V DC per illuminated
display;
colour switching see chapter “21LEDColourAssignments”
Outputs/binary feedback signals: S1 out - S4 out
Design: Normally open contact, PNP output
short-circuit-proof,
with self-clocking short-circuit protection
Switchable output current: max. 100 mA per feedback signal
Outputvoltage-active:     ≥(operatingvoltage-2V)
Output voltage - inactive: max. 1 V in unloaded state
Input / proximity switches (external initiator: S4 in):
Power supply: Voltage present at the control head - 10%
Current carrying capacity sensor supply: max. 90 mA
Short-circuit protection
Design: DC 2- and 3-conductor,
          NOorNC(factorysettingNO),PNPoutput
Input current 1 signal: ISensor > 6.5 mA, limited internally to 10 mA
Input voltage 1 signal: USensor > 10 V
Inputcurrent0signal:     ISensor<4mA
Inputvoltage0signal:     USensor<5V
Inputs valve actuation (Y1 - Y3):
Signal level - active: U > 10 V, max. 24 V DC + 10%
  Signallevel-inactive:     U<5V 
Impedance: > 30 kOhm
english
Control Head Type 8681