ABB LME620-AI 사용 설명서 - 페이지 3

{카테고리_이름} ABB LME620-AI에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. ABB LME620-AI 15 페이지. Electrical linear actuators for continuous modulating control

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2. General

2.1 Proper use

Control actuators are intended to be used exclusively for actuating final control elements (valves,

vanes, etc.). Do not use these actuators for any other purpose. Otherwise, a hazard of personal injury

or of damage to or impairment of the operational reliability of the device may arise.

2.2 Safety and precautions

When mounting the actuator in areas which may be accessed by unauthorized persons, take the re-

quired protective measures.

- Control actuators perform movements for positioning vanes and valves. Handle properly and with

care. Otherwise, a hazard of bruise injuries may arise.

- When changing the oil of the actuator, thoroughly remove any oil that may have run down on the

floor during the procedure to avoid accidents.

- Dispose of the waste oil in compliance with the respective local regulations. Make sure that no waste

oil reaches the water cycle.

- Only qualified specialists who have been trained for these tasks are authorized to mount and adjust

the control actuator, and to make the electrical connection.

- When working on the actuator itself or its electronics always observe the locally valid accident pre-

vention regulations and the regulations concerning the construction of technical installations.

3. Storage

Contrac actuators may be stored under moist and aggressive condition for a short time. The equipment

is protected against external corrosive influences. However, direct exposure to rain, snow, etc. must be

avoided.

Actuators, equipped with an anti condensation heater, are additionally protected by desiccant placed

in the connector (and in the terminal box of the separate electronics, if present). The desiccant guaran-

tees sufficient protection for approximately 150 days. It can be regenerated at a temperature of 90° C

within 4 h.

The desiccant must be removed prior to commissioning the actuator or the electronics.

3.1 Long-time storage

If you intend to store or transport the device for a longer time, we recommend to wrap it in plastic foil

and add desiccant. Regularly check if the desiccant is still active.

4. Delivery State

If not otherwise specified by the customer, Contrac actuators are delivered with the following standard

configuration:

Behavior in 0/100% position:

Setpoint function:

Input (setpoint):

Function:

Output (actual value):

Digital inputs :

Digital outputs:

Range:

The configuration of your actuator may differ from the standard configuration specified above. It can be

called up for display using the configuration program.

Not available for bus communication

Shut-off with rated torque / force

Linear; setpoint = positioning value

4 ... 20 mA

Positioner, parameter: setpoint

4 ... 20 mA

DI 1 switch-over manual/automatic and v.v.

DI 2 / DI 3 manual control +/-

DO 1 ready to operate, DO 2/3 end position signalling

Not adjusted