Siemens REV-R.03/1 Bedienungsanleitung PDF herunterladen (Seite 3)

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Siemens Electromotoric actuators CE1N4540en

Building Technologies 05.11.2009

• The valve opens / closes in proportion to the control signal at Y or R.

• At DC 0 V or 0 Ω the valve is closed (A  AB).

• When power supply is removed, the actuator maintains its current position.

Connector S1 (under the cover, on the printed circuit board) can be repositioned to

change the flow characteristic of valves from "equal percentage" to "linear"; in all cases

the flow characteristic relates to the through-port of the valve.

S1 connected to A and C:

equal-percentage flow characteristic

S1 connected to B and C:

linear flow characteristic

(factory setting)

4573Z02

R - M

A C B

C B

Volumetric flow rate

4540D01

100

0 V

10 V

1000 Ω

Positioning signal

Relationship between the DC 0…10 V or

0…1000 Ω positioning signal and the

volumetric flow rate

Control signals:

Y = DC 0...10 V

R = 0...1000 Ω; cut through R − M bridge

Flow characteristic

log = Equal-percentage valve characteristic

(factory setting)

lin = Linear valve characteristic

Flow range

100

= Volumetric flow 100%

= Volumetric flow 0 %

Positioning signal Y

DC 0…10 V

Signal R

0…1000 Ω

Position / stroke

The Y positioning signal

is valued.

The R signal is valued. Signal addition Y and R

Position feedback U

DC 0…10 V DC 0…10 V DC 0…10 V

Use with 0…1000 Ω signal indicator, e.g. frost protection. For details see connection diagram.

• Electromotoric actuator, maintenance-free

• Reversible synchronous motor

• Antilocking gear train

• Load-dependent switch-off in stroke limit positions

Engineering notes

The actuators must be electrically connected in accordance with local regulations and

the connection diagrams.

Safety regulations and restrictions designed to ensure the safety of people and

property must be observed at all times.

Admissible temperatures refer to "Technical data" (page 5).

If an auxiliary switch is required, its switching point should be indicated on the plant

schematic.

SQD65

DC 0…10 V o

0…1000 Ω control signal

Selecting the flow charac-

teristic

Position of S1

Flow characteristic

Priority of signals

Features and benefits

Caution

1 2 3 4 5 6 7 8

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