Burkert Type 8681 Manual de usuario descargar pdf (Pagina 32)

24 V DC - Design

Solenoid valves:

Power input per solenoid valve: max. 0.8 W (0.9 W during activation)

Power consumption per solenoid valve

: 67 mA at 12 V DC

34 mA at 24 V DC

29 mA at 28 V DC

Operating mode: Long-term operation (100 % ED)

Central display of the switching states: 42 mA with a power supply of 24 V DC per illuminated display;

Color switching see chapter 16. LED - Color 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

Output/analog S3 out feedback signal (separate order variant "Analog"!):

Signal output: S3 out (binary feedback signal S3out not available)

Type: Current source (4 to 20 mA)

Max. burden: ≤ 500 Ohm

Max. fault: ±1 mm (incl. measurement fault by the position measuring system)

Input / proximity switches (external initiator: S4 in):

Power supply: Voltage present at control head - 10 %

Current carrying capacity, sensor power 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: I

Sensor

> 6.5 mA, limited internally to 10 mA

Input voltage 1 signal: U

Sensor

> 10 V

Input current 0 signal: I

Sensor

< 4 mA

Input voltage 0 signal: U

Sensor

< 5 V

Valve control inputs (Y1 - Y3):

Signal level - active: U > 10 V, max. 24 V DC + 10 %

Signal level - inactive: U < 5 V

Impedance: > 30 kOhm

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Control Head Type 8681

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Burkert Type 8681 Manual de usuario Pagina 32

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