Data Sheet for Product

5/16

Siem ens Modulating control valves with magnetic actuators, PN 16 CA1N4455en

Building Technologies 2018-02-05

YF – Function

no function fully open closed

ConnectionsTransferFunction

∂ YF not connected

∂ valve will follow the Y-signal

∂ YF connected to G

∂ valve will fully open

control path A ⇓ AB

∂ YF connected to G0

∂ valve will close control path

A ⇓ AB

1. Hand wheel position MANUAL (open) or OFF (close)

2. Forced control signal YF

3. Signal input Y

The MX..461.. and MX..461..P magnetic valves are

factory-calibrated at 0 % and 100 % stroke.

When commissioning the valves, however, (especially

under extreme conditions of use) there may still be

some leakage via control path A ↑ AB with a 0 %

stroke control signal (DC 0 V, DC 2 V or DC 4 mA).

In this case, the valve can be recalibrated simply and

quickly:

1. Hand wheel [2] in AUTO-position

2. Use a pointed implement (ø 2 mm) to operate the

button in the opening [3] once

3. While recalibration is in progress, the LED [5] is

flashing green for approximately 10 seconds.

The valve will be briefly closed and fully opened.

If the electronics module is replaced, the valve’s

electronics must be recalibrated. For that, the hand

wheel must be set to AUTO.

Forced control input

Signal priority

Calibration