data/datapdf/ML7430E, ML7435E

ML7430E/ML7435E

ELECTRIC LINEAR ACTUATORS

FOR MODULATING CONTROL

GENERAL

The ML7430E and ML7435E Electric Linear Actuators are designed to provide modulating control in closed control loops together with the small linear valves V5832B/V5833A

(DN25...DN40) and V5825B/V5872B for high-differential pressure.

These valve-actuator combinations are suitable especially for integration into compact or conventional stations for direct or indirect district heating connections, air handling units and roof top units for zone control, and domestic hot water applications.

The actuators are microprocessor-controlled for exact positioning. The direction of movement is reversible. The

V5825B or V5872B valve and ML7435E actuator combination provides safe close-off function and is approved according to

DIN EN 14597.

SPECIFICATION DATA

FEATURES

• 0...10 Vdc / 2...10 Vdc signal input

• Fast run-time

• Low power consumption

• Quick and easy installation

• No separate linkage required

• No calibration

• Force-limiting end switches

• Spring return (ML7435E)

• Manual operator

• Synchronous motor

• Direct / reverse action adjustable

• Maintenance-free

SPECIFICATIONS

Temperature Limits

Ambient operating limits 0...+50 °C at 5 to 95% rh

Ambient storage limits -40...+70 °C at 5 to 95% rh

Medium valve temperature max. +130 °C

Signals

Input voltage range

Input resistor

Y = 0...10 Vdc or 2...10 Vdc

R i

= 100 kΩ

Signal source output register Max. 1 kΩ

Safety

Protection standard

Protection class

Pollution degree

Rated impulse voltage

Flame retardant

Software class

Operating mode

Wiring

Terminals

Cable entry

IP54 as per EN60529

II as per EN60730-1

2

500 V

V0 as per UL94 (optional with metal cable gland)

A as per EN 60730-1

See Table 1 on pg. 2

1.5 mm

2

M20x1.5

Weight 0.37 kg / 0.5 kg

Dimensions See Fig. 2 and Fig. 3

Material

Cover

Base

ABS-FR

Glass fiber-reinforced plastic

 U.S Registered Trademark

Copyright © 2011 Honeywell Inc. • All Rights Reserved EN0B-0260GE51 R0611

ML7430E/ML7435E ELECTRIC LINEAR VALVE ACTUATORS – SPECIFICATION DATA

Table 1. Specifications, by model

OS-number supply voltage power consumption signal input 0(2) Vdc (factory setting) signal input 10 Vdc (factory setting) nominal stroke run-time at 50 Hz nominal stem force spring return time (6.5 mm stroke) spring return direction operating mode (as per EN 60730-1, 6.4)

OPERATION

General

The drive of a synchronous motor is converted into linear motion of the actuator stem by using a spur gear transmission. Actuator and valve are directly connected by a nut.

An integrated mechanism limits the stem force. Installed microswitches switch off the actuator precisely when the specified stem force is reached.

The close-off position is self-adjusting by means of an automatic synchronization function. Synchronization is performed when the applied control signal is 0 V or 10 V. The actuator then checks its end position every 20 minutes. Any manual operation will be detected within 20 minutes, at the latest, and the actuator will return to its end position after that control cycle.

Manual Operation for ML7430E

The actuators are equipped with a manual operator. Manual operation is possible only after the power supply has been switched off or disconnected. It should be used only to check the valve operation. To operate, turn the manual operator knob clockwise to move the stem downward and counterclockwise to move the stem upward.

Manual Operation for ML7435E

The actuators are equipped with a manual operator (for 8 mm

Hex Key). Manual operation is possible only after the power supply has been switched off or disconnected. It disables the actuators safety function and should be used only to check the valve operation. The manual operator is located under the cover.

Electrical Installation

To avoid the voltage drop influence of the cabling, it is recommended that you wire control signal Y and 24 V⊥ separately from power supply wiring.

ML7430E1005 ML7435E1004

24 Vac -15/+20%, 50/60 Hz

4 VA 4 VA actuator stem retracts actuator stem extends

6.5 mm

15 s

--

-- type 1

60 s

400 N max. 20 s actuator stem retracts at power failure type 1.AB

Input Signal Range

The range of the analog input signal Y (0...10 Vdc or

2...10 Vdc) can be selected by changing the position of jumper plug W2 (see Fig. 1). The factory set is at 0...10 Vdc.

Direction of Action

The direction of action (direct or reverse) can be selected by changing the position of jumper plug W1 (see Fig. 1). It is set by the factory such that the stem extends at increasing signal and retracts at decreasing signal (direct action).

W2

2...10 V 0...10 V

W1

10 V

10 V

Fig. 1. Jumper plugs W1 and W2

NOTE: Jumper plugs W1 and W2 are accessible after the cover has been removed (see Fig. 1).

EN0B-0260GE51 R0910 2

ML7430E/ML7435E ELECTRIC LINEAR ACTUATORS – SPECIFICATION DATA

Y-Signal Override

To override the Y-signal and force the actuator in 0% or

100% stroke position, inputs 1 and 2 (see Fig. 4 and Fig.

5) must be connected as follows:

• 0% stroke position (stem fully retracted):

24 V⊥ applied to input Y

• 100% stroke position (stem fully extended):

24 V

∼

applied to input Y

• or vice versa if reverse action is selected

Y-Signal break

In the event of a wire break at the Y-signal input, the actuator is moved into the 0 V signal position (safety position).

Spring Return (ML7435E1004, only)

The ML7435E1004 spring return actuator provides a defined safety position of the valve in case of power failure.

DIMENSIONS

126

In the event of a power failure, the actuator retracts its stem.

Suitable Valves

DN15 DN20 DN25 DN32 DN40 order no. closeoff pressure in kPa

1600 -- 1600 --

-

-

-- V5872B

-- 1600 1200 1000 V5832B

-- 1600 1200 1000 V5833A

2500 2500 2500 2500 -- V5825B

Approvals

NOTE: Actuator ML7435E1004 in combination with the following valves is approved according to DIN EN

14597: valve OS-no. DIN registration no.

V5825B 1F152/08

108

33

126

Fig. 2. ML7430E (dimensions in mm)

108

33

33

Fig. 3. ML7435E (dimensions in mm)

3

33

EN0B-0260GE51 R0910

ML7430E/ML7435E ELECTRIC LINEAR ACTUATORS – SPECIFICATION DATA

WIRING

0(2) … 10 VDC

W2 W1

10 V 10 V

M

3 Y

2 24 V

1 24 V ~

0(2) … 10 VDC

0%

100%

24 V

24 V ~

Fig. 4. ML7430E, wiring

0(2) … 10 VDC

W2 W1

10 V 10 V

M

3

2

1

Y

24 V

24 V ~

Fig. 5. ML7435E, wiring

0(2) … 10 VDC

0%

100%

24 V

SAFETY SWITCH (OPENS

24 V ~

IF TEMPERATURE EXCEEDS

SAFETY LIMIT)

Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Rolle, Z.A. La Pièce 16, Switzerland by its Authorized Representative:

Automation and Control Solutions

Honeywell GmbH

Böblinger Strasse 17

71101 Schönaich

Germany

Phone: (49) 7031 63701

Fax: (49) 7031 637493 http://ecc.emea.honeywell.com

Subject to change without notice. Printed in Germany

EN0B-0260GE51 R0611