Danfoss AME 85 QM Operating Guide

Safety Information

⚠️ To avoid injury to persons and damage to the device, it is absolutely necessary to read and observe these instructions carefully.

Necessary assembly, start-up, and maintenance work must be performed by qualified and authorized personnel only.

Please comply with the instructions of the system manufacturer or system operator.

⚠️ Do not remove the cover before the power supply is fully switched off.

Mounting

Fix the AME 85, AME 86 on the valve ❶. Admissible Installation Positions ❷.

[Diagram Description: Illustration showing the AME 85/86 actuator being mounted onto a valve, with indicators for permissible installation positions.]

Manual Override

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

[Diagram Description: Image depicting the use of an 8mm Allen key ? to operate the manual override on the actuator.]

Wiring

* 24 V AC: Connect via safety isolating transformer.

⚠️ Do not touch anything on the PCB! Switch off the power line before wiring the actuator! Lethal voltage! Wire the actuator according to the wiring diagram.

[Diagram Description: A detailed wiring diagram showing connections to various terminals (SN, SP, Y, X) for power supply, control signal input, and output signal, with labels and voltage/current specifications.]

Control and Output Signals

Control Signal: Control signal from the controller must be connected to terminals Y (input signal) and SN (common) on the AME printed board.

Output Signal: Output signal from the terminal X can be used for indication of the current position. Range depends on the DIP switch settings.

Supply Voltage: Supply voltage (24V~ -15 to +10 %, 50 Hz) must be connected to the terminals SN and SP.

DIP Switch Settings

Factory settings: ALL switches are on OFF position! ❶

Note: All combinations of DIP switches are allowed. All functions that are selected are added consecutively. There is only one logic override of functionality, i.e., the switch No. 6 Proportional/3 point, which sets the actuator to ignore the control signal and works as a "simple" 3-point actuator.

[Diagram Description: A visual representation of the DIP switch bank (switches 1 through 9) with labels indicating their functions: U/I, 2-10V/0-10V, Direct/Inverse, Sequential, Proportional/3-point, LOG/LIN flow, 100% Kvs/RED. Kvs, and Reset.]

SW1: U/I

Factory setting: Voltage control signal (0-10 V).

SW2: 2-10 V/0-10 V

Factory setting: 2-10 V.

SW3: Direct/Inverse

Factory setting: DIRECT

SW4: ---/Sequential

Two actuators can be set to work parallel with one control signal. If SEQUENTIAL is set, the actuator responds to a split control signal (see 0(2)-5(6) V/5(6)-10 V).

Note: This combination works with switch No. 5: 0(2)-5(6)V/5(6)-10 V.

SW5: 0(2)-5(6) V/5(6)-10 V

Note: This function is available if switch No. 4: ---/Sequential is set.

SW6: Proportional/3 point

When DIP 6 is OFF: actuator needs to perform self-stroking prior to changing DIP 6 to ON. Output signal depends on DIP 2, 3 & 5 settings.

Actuator can operate in modulating (DIP 6 to OFF) or in "simple" 3-point mode, if the 3-point function is selected (DIP 6 to ON).

Connect power supply on terminals SN and SP. DIP 6 factory setting is OFF for modulating operation.

Actuator's stem will run to its totally extended or retracted position by bridging SN signal to terminals 1 or 3 and will remain in this position as long as potential is present.

Set DIP 6 to ON for operating actuator in 3-point mode.

Note: If 3-point function is selected, actuator does not respond to any control signal on port Y. It only rises and lowers spindle if power is supplied on port 1 or 3.

SW7: LOG. flow/LIN. flow

Factory setting: LOG. Flow (characteristic of valve is unchanged).

Note: If used with non-logarithmic valves, the characteristic will be the anti-logarithm of the valve's characteristic (e.g., a linear characteristic will be transformed to quick-open).

SW8: 100 % Kvs/RED. Kvs

Note: This function works properly only with logarithmic (equal percentage) valves.

SW9: Reset

After power supply connection, the actuator starts the self-adjustment procedure. The indicator LED flashes until self-adjustment is finished. The stroke length is stored in memory. To restart self-adjustment, change the position of the RESET switch (No. 9).

If the supply voltage is switched off or falls below 80% for more than 0.1 s, the current valve position will be stored in memory.

Function Test

The indicator light shows whether the positioner is in operation or not, and indicates control status and faults.

• Constant light: Normal operation
• No light: No operation or no power supply
• Intermittent light (1 Hz): Self-adjusting mode
• Intermittent light (3 Hz): Power supply too low, insufficient valve stroke (<20 s), or end-position cannot be reached.

Dimensions

[Diagram Description: Technical drawing showing the AME 85 QM actuator with overall height, width, depth, and connection port dimensions labeled in millimeters. Includes a sub-diagram for AME 85 QM + AB-QM (DN 200, 250) with valve connection sizes.]

Hazardous Substances Table

O: Indicates that this hazardous substance contained in all of the homogeneous material for this part is below the limit requirement in GB/T 26572;

X: Indicates that this hazardous substance contained in at least one of the homogeneous material for this part is above the limit requirement in GB/T 26572;