Danfoss ABNM A5 LOG, ABNM A5 LIN Data sheet

Data sheet

Actuator ABNM A5 LOG/LIN

Description

The ABNM A5 0-10V thermal actuator has been specifically designed for use with AB-QM valves DN10-32/½-1¾ inch in heating and cooling applications.

Actuator convincing features are:

• Stroke 5.0 mm or 6.5 mm

• Detection of AB-QM opening and closing point

• Available as normally closed (NC) or normally open (NO)

• Power consumption 1/1.2 W

• Plug-in halogen free cable

• Simple snap-on installation

• IP54 in any installation position

• First-Open function (NC versions)

• Compact size, small dimensions

• LIN and LOG versions

• 24V AC and DC versions

• All round function indicator

• Noiseless and maintenance-free

• Certified by TÜV

Control is done by a 0-10 V signal, which is provided either by a room thermostat or, in most cases, by a central direct digital control (DDC) system. The actuator converts the 0-10 V signal into a proportional actuator travel, which can be either linear (ABNM A5 LIN) or logarithmic/equal percentage (ABNM A5 LOG). For fan coil unit or chilled ceiling application choice of logarithmic version is recommended (water to air heat exchanger). The result will be linear system response and thus optimal room temperature control.

Ordering

Accessories

Typ e Supply voltage Stroke

5 mm

ABNM A5, with VA41 adapter, without cable

24 V AC

6.5 mm

24 V DC

Normal ly Open/

Normally Closed

NC LOG 08 2F116 0 NC LIN 08 2F1161 NC LOG 082 F116 2 NO LOG 08 2F116 3 NC LIN 08 2F11 64 NO LIN 082 F116 5 NC LOG 08 2F116 6 NO LOG 08 2F1167

LOG/LIN Code No.

Adapter VA41 for AB-QM is included with actuator. In case you wish to use ABNM A5 actuator with RA valves, order adapter VA78 separately.

Adapter Code No.

VA78 082F1071

Cables are not included and should be ordered separately. All cables are made from halogen free material.

Cables Code No.

1 meter 082F1081 5 metres 082F1082 10 me tres 082F1083

VD.SK.J3.02 | 1

Data sheet Actuator ABNM A5 LOG/LIN

Function The actuator mechanism of the ABNM actuator

uses a positive temperature coefficient (PTC) resistor heated wax element and a compression spring. The wax element is heated by applying the operating voltage and moves the integrated piston. The force generated by this movement is transferred to valve spindle and thus opening or closing the valve. The actuator provides active regulation in a defined range (see characteristic curve between 0.5 V and 9.5 V). The function display (all-round display) of the ABNM shows at the first glance whether the valve is “open” or “closed”.

First open function (for NC versions only)

In its delivery condition ABNM is partly open due to the first open function (filling). This enables heating/cooling operation during the carcass construction phase even when the electric wiring is not yet complete. During the later electrical start-up, the first open function is unlocked by applying the power supply for more than 6 minutes.

Version NC “normally closed”

In case of the normally closed version, valve is closed when de-energized. Valve is opened steadily upon switching on the power supply, setting control signal to 10 V and after expiry of the dead time.

Power

Function display for NC versions extends proportionally with actuator opening from 0 mm to 5-6 mm.

Version NO “normally open”

In case of the normally open version, valve is open when de-energized. Valve is closed steadily upon switching on the power supply, setting control signal to 0 V and after expiry of the dead time.

Automatic initial calibration (for NC and NO versions)

Automatic initial calibration is done at the first power on of the actuator (new actuator). If the actuator is switched off within 8 hours after the calibration is performed, each restart of the actuator begins with a new initial calibration, which last about 30 minutes. The power supply needs to be applied for 30 min. (± 10 min.) in order to finalize the calibration phase, which includes valve opening and closing point detection. This ensures an optimum match with the AB-QM valve used at any preset between 20% and 100%. Active control range is thus between 0.5 V and 9.5 V what ensures precise flow and temperature control. Automatic initial calibration stores calibration parameters in the actuators non-volatile memory after 8 hours. The information remains in the actuators memory, also if actuator actuator power supply is disconnected.

Manual re-calibration (for NC and NO versions)

In case you change valve type or valve preset after initial calibration is finished, apply 0 V control voltage for 60 min. for closing point detection and 10 V control voltage for 60 min. for new opening point detection. Please note the actuator stores this information in non-volatile memory 8 hours after re-calibration. If power is lost within 8 hours after re-calibration, then this information is lost, and you need to repeat the re-calibration procedure.

Automatic re-calibration (for NC and NO versions)

In case you change valve type or valve preset after initial calibration is finished and exact timing of re-calibration is not important, manual re-calibration procedure can be avoided. Controller will during normal course of operation sooner or later give control signal 0 V and 10 V. Actuator will automatically detect new closing point when control signal is 0 V for 60 min. and new opening point when control signal is 10 V for 60 min. We cannot guarantee duration of this procedure, as it depends from control signal from controller.

2 | © Danfoss | 2019.01

Power

Function display for NO versions extends only when valve is fully closed by approx. 0.5 mm.

Operation after power-off

If power is lost within 8 hours after 8 calibration, then you need to repeat re-calibration procedure.

VD.SK.J3.02

Data sheet Actuator ABNM A5 LOG/LIN

Data

ABNM A5 type 5 mm versions AC 6.5 mm versions AC 6.5 mm versions DC

Versions NC, LOG/LIN NC/NO, LOG/LIN NC/NO, LOG

Voltage

24 V AC 50/60 Hz

(-10 % to +20 %)

24 V AC 50/60 Hz

(-10 % to +20 %)

24 V DC

(-20 % to +20 %) Max. inrush current < 300 mA for max. 2 min. < 300 mA for max. 2 min. < 300 mA for max. 2 min. Operating power 1 W

1.2 W

Control voltage 0-10 V DC 0-10 V DC 0-10 V DC Input resistance 100 k Ω 100 k Ω 100 k Ω

Actuator travel

5 mm

(- 0.5 mm overclosing)

6.5 mm

(- 0.5 mm overclosing)

6.5 mm

(- 0.5 mm overclosing)

Actuating force 100 N + 10 % 125 N ±5 % 125 N ±5 %

Closing (NC) or opening (NO) time when de-energized

Speed 30 s/mm

Calibration time (including First Open for NC)

Delay when energizded (heat up time)

Fluid temperature 0 - 100 °C

3-5 min. 3-5 min. 3-5 min.

30 ± 10 min.

30 s/mm

30 ± 10 min.

2-3 min. 2-3 min. 2-3 min.

0 - 100 °C

Storage temperature -25 to 65 °C -25 to 65 °C -25 to 65 °C Ambient temperature 0 to 60 °C 0 to 60 °C 0 to 60 °C Ambient humidity 95 % r.h., non-condensing

Degree/class of protection

IP543)/III safety extra-Iow

voltage

IP543)/III safety extra-Iow

voltage

IP543)/III safety extra-Iow

voltage

CE conformity according to EN60730 EN60730 EN60730 UL certification UL60730 UL60730 UL60730

Connecting cable (no included)

3 x 0.22 mm² halogen free

Adapter (included) VA 41 VA 41 VA 41 Overvoltage resistance EN60730-1 min. 1 kV min. 1 kV min. 1 kV Weight 111 g 111 g 111 g Housing material Polyamid / white Polyamid / white Polyamid / white

Measured with pr ecision power meter LMG95.

Measured at amb ient temperature 20°C . Due to thermal working pri nciple of actuator some p arameters vary with amb ient temperature . At higher ambient temperat ures actuator opening i s faster and closing slower. At lower ambie nt temperatures actuator clo sing will be faster and openin g slower.

In all installati on positions with cable plugg ed in.

VD.SK.J3.02

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