AME 855 Electrical Actuator

Brand: Danfoss

Actuator is primarily designed to regulate valve in the respond to the demand of a controller in district heating/cooling, heating, ventilation and air conditioning systems. 

Actuator AME 855 can be controlled by electronic controllers with modulating or 3-point control output. Actuator can be used with VF3 valves (DN 200-300).
Features
  • 3-point or modulating control
  • Easy to use manual operation ( monitoring on terminal R)
  • Position indication
  • LED signaling
  • Direct or inverse function
  • Automatic adaptation of stroke to valve's end positions which reduces commissioning time
  • Voltage or current input Y
  • Voltage or current output X (for current output, accessory is needed)
  • Frost protection function (for detailed information read the Functions section in the data sheet)
  • Blockage detection
  • Internal temperature control – integrated heater + overheat protection
  • Wire break detection (only modulating actuator)
  • Selectable hysteresis
  • Auto test function
  • Auto pause function
  • Potential-free position switches (accessory)
  • Remote reset possibility

Specifications

Brand

Ambient Temperature Range

  • -10° to 50° C (14° to 122° F)

Applications

  • Air Conditioning Systems
  • District Heating / Cooling
  • Heating Systems
  • Ventilation Systems

Approvals & Certifications

  • CE Directive 2006/42/EC, Council Directive (2004/108/EC, 2006/95/EC)

Class

  • Protection Class II

Consumption

  • 50 VA at 24 V - Power Consumption
  • 63 VA at 230 V - Power Consumption

Electrical Connectors

  • Cable Gland
  • M16 x 1.5

Environmental Protection

  • IP54

Frequency

  • 50/60 Hz

Function

  • 3-Point Control Mode
  • Auto Pause
  • Auto Test
  • Blockage Detection
  • Frost Protection Function
  • Hysteresis Setting
  • Internal Temperature Control
  • Modulating Control Mode
  • Wire Break Detection

Indication

  • Green LED
  • Position Indicator
  • Red LED

Input

  • Control Input: 0-10 Vdc, 77 kiloohms
  • Control Input: 0-20 mA, 510 ohms
  • Control Input: 2-10 Vdc, 77 kiloohms
  • Control Input: 4-20 mA, 510 ohms

Operation

  • Mechanical Operation (Manual)

Output

  • Control Output: 0-10 Vdc, ≥ 1,200 ohms, 8 mA Current, Max.
  • Control Output: 0-20 mA, ≤ 500 ohms
  • Control Output: 4-20 mA, ≤ 500 ohms

Power Supply

  • 115/230 Vac, ± 10 %
  • 24 Vac, ± 10 %

Process Temperature

  • 130° C (266° F) Max.

Speed

  • 2 sec/mm

Storage Temperature

  • -20° to 65° C (-4° to 149° F)

Switch Type

  • DIP Switches

  • District heating/cooling
  • Heating
  • Ventilation
  • Air conditioning system

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