ABB EBN853 Istruzioni - Pagina 3

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3. General

3.1

Proper Use

Power electronic units EBN853 and EBN861 may be used exlusively for triggering electrical actuators

of the RSDE... or RHDE ... series. Do not use them for any other purpose. Otherwise, a hazard of per-

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

3.2

Safety and Precautions

When mounting the electronic units in areas which may be accessed by unauthorized persons, take the

required protective measures.

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

the electronic units, and to make the electrical connection.

- When working on the electronic units always observe the locally valid accident prevention regula-

tions and the regulations concerning the construction of technical installations.

- Switch-off the voltage supply; make sure that unintentional switching on is not possible

- Make sure that cutting off the voltage supply does not affect the plant process

- Consider restoring process forces from the final control element when cutting off the voltage

4. Storage

The devices may be stored under moist and aggressive condition for a short time. The equipment is

protected against external corrosive influences. However, avoid direct exposure to rain, snow, etc.

Condensation may occur in the terminal box. Therefore, it is protected by a desiccant, which ensures

sufficient protection for approximately 150 days. The desiccant can be regenerated at a temperature of

90° C within 4 h.

Remove the desiccant prior to commissioning the electronic units.

4.1

Actuator operation via frequency converter

- The frequency converter (electronic unit) may not be installed or operated within the hazardous area.

- Check the electronic unit for proper parameter settings.

- Make sure that the electronic unit is connected to tho associated actuator.

- The actuator default settings include the acivation of the positioning loop monitoring. A later de-ac-

tivation is not allowed.

- The hand wheel must be locked with a cotter pin in order to avoid accidental operation. Disconnect

the power supply prior to manual operation.

- Actuators in explosion-proof design do not allow for rapid traverse operation. This function will be

ignored if you select it via the user interafce.

4.2

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.

5. Delivery settings

Behavior in 0/100% position:

Setpoint function:

Input (setpoint):

Function:

Positioning loop monitoring:

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 a notebook / PC and the related configuration program.

not with fieldbus communication.

Keep closed with rated torque

Linear; setpoint = positioning value

4 ... 20 mA

Positioner, parameter: setpoint

activated

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 (to be adjusted during commissioning)