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Actuator for modulating control AME 85QM | Dew Point

Actuator for modulating control AME 85QM

Actuator for modulating control AME 85QM

Actuator for modulating control AME 85QM

Description

AME 85QM actuator is used together with large pressure independent balancing and control valves type AB-QM  DN 200 and DN 250

Special features:

  • Position indication
  • Automatic adaptation of stroke to the valve’s end position to reduce commissioning time (self stroking)
  • Advanced design incorporates load related “switch off” to ensure that actuators and valves are not exposed to overload
  • Manual operation

Main data:

  • Nominal voltage:
    – 24 VAC, 50 Hz/60 Hz
  • Control input signal:
    – 0(4)…20 mA
    – 0(2) …  10 V
  • Force: 5.000 N
  • Stroke: 40 mm
  • Speed: 8 s/mm
  • Max. medium temperature: 200 °C

Ordering

Technical data

Power supply: 24 VAC, +10 to –15%
Power consumption: 12.5 VA
Frequency: 50 Hz / 60 Hz
Control input Y: 0  … 10 V (2 … 10 V) Ri = 50 Ω,
                             0 … 20 mA (4 … 20 mA) Ri = 500 Ω
Output signal X: 0 … 10 V (2 to 10 V)
EMC: IEC 801/2 – 5
Close of force: 5000 N
Max. stroke: 40 mm
Speed: 8 s/mm
Max. medium temperature: 200 °C
Ambient temperature: 0 … 55 °C
Storage and transport temperature: –40 … +70 °C
Degree of protection: IP 54
Protection class: II
Weight: 9.8 kg
CE- marking in accordance with standards: Low Voltage Directive (LVD) 2006/95/EC: 60730-1, EN 60730-2-14 EMC Directive 2004/108/EC : EN 61000-6-2, EN 61000-6-3

Installation

Mechanical
Installation of the valve with the actuator is allowed in horizontal position or upwards. Installation downwards is not allowed. Use the 57 mm castellated nut (supplied) to fit the actuator to the valve body. While the actuator is being fitted, a 8mm Allan key can be used to tighten the pinch screw in the valve body ring to stop the valve turning.

Allow for necessary clearance for maintenance purposes.

Electrical
Electrical connections can  be accessed by removing the actuator cover. Two cable gland entries with thread (M20 x 1.5 and M16 x 1.5) are prepared for cable glands.

Note: Cable and cable gland used must not compromise the actuator’s IP rating, and must ensure the connectors are fully strain relieved. Please observe local rules and regulations as well.

Wiring

SP  24 V~ ………………….Power supply

SN  0 V ……………….Common

Y    0 to 10 V………………Input signal

     (2 to 10 V)

     0 to 20 mA

     (4 to 20 mA)

X     0 to 10 V ………………………………..Output signal

      (2 to 10 V)

Automatic self stroking feature
When power is first applied, the actuator will automatically adjust to the length of the valve stroke. Subsequently, the self stroking feature can be re-initialised by changing position  of SW9.

Diagnostic LED
The red diagnostic LED is located on the pcb under the cover. It provides indication of  three operational states: Actuator Healthy (Permanently ON), Self Stroking (Flashes once per second), Error (Flashes 3 times per second – seek technical assistance).

DIP switch setting
The actuator has a function selection  DIP switch under the removable cover. In particular, if SW6 is set to ON, the actuator will perform  as 3-point actuator.

The switch provides the following functions:

SW1: U/I – Input signal type selector:
If set to OFF position, voltage input is selected. If set to ON position, current input is selected.

SW2: 0/2 – Input signal range selector:
If set to OFF position, the input signal is in the range from 2 V to 10 V (voltage input) or from 4 mA to 20 mA (current input). If set to ON position, the input signal is in the range from 0 V to 10 V (voltage input) or from 0 mA to 20 mA (current input).

SW3: D/I – Direct or inverse acting  selector:
If set to OFF position, stem retracts  as voltage increases. If set to ON position, stem extends  as voltage increases.

SW4: —/Seq – Normal or sequential mode selector:
If set to OFF position, the actuator is working in range 0(2)..10V or 0(4)..20mA. If set to ON position, the actuator is working in sequential range; 0(2)..5 (6)V or (0(4)..10 (12)mA) or (5(6)..10V)or (10(12)..20mA).

SW5: 0..5V/5…10V – Input signal range in sequential mode:
If set to OFF position, the actuator is working  in sequential range 0(2)..5 (6)V or 0(4)..10 (12)mA. If set to ON position, the actuator is working  in sequential range; 5(6)..10V or 10(12)..20mA.

SW6: Prop./3-pnt – Modulating  or 3-point mode selector:
If set to OFF position, the actuator is working normally according to control signal. If set to ON position, the actuator is working as 3-point actuator.

When DIP switch SW6 is set to ON than all functions from other DIP switches  become inactive.

SW7: LOG/LIN – Equal percentage or linear flow through valve selector1:
If set to OFF position, the flow through valve is equal percentage. If set to ON position, the flow through valve is linear according to control signal.

SW8: 100% Kvs /Reduced Kvs
To be set to OFF position.

SW9: Reset:
Changing this switch position will cause the actuator to go through a self stroking  cycle.

Commissioning
Complete the mechanical and electrical installation and perform the  necessary checks and tests:

  • Isolate control medium. (e.g. self stroking in a steam application without suitable mechanical isolation could cause a hazard).
  • Apply the power. Note that the actuator will now perform the self stroking function.
  • Apply the appropriate control signal and check the valve stem direction is correct for the application.
  • Ensure that the actuator drives the valve over its full stroke, by applying the appropriate control signal. This action will set the valve stroke length.

The unit is now fully commissioned.

Commissioning / testing  feature
The actuator can be driven to the fully open  or closed positions (depending on valve type)  by connecting SN to terminals 1 or 3.

Manual operation
The manual operation is applied by rotating  the 8 mm Allan key (not supplied) to the required position. Observe the direction  of rotation symbol.

  • Disconnect power
  • Remove grommets and push the button
  • Adjust valve position using an 8 mm Allan key
  • Set valve to closed position
  • Restore power

Note: Actuator will restore  position required by Y signal.

Actuator – valve combination

Dimensions  (mm)

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