ABB Contrac PME120AI Petunjuk Manual - Halaman 17

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9.3

Functions and signals at the LCP

Change-over to adjustment mode:

Press and hold both drive buttons for approx. 5

seconds

Moving to an end position

Use associated drive button on LCP

Saving the first end position

Press button 0% or 100%

Saving the second end position

Press button 0% or 100%

Confirm settings

Press 0% and 100% buttons simultaneously

Normal operation: MAN / AUT

Driving with button on CSF

Priority over control system

Electronic is in bootstrap mode during the data trans-

fer of e. g. firmware, objects or motor charcteristics;

use ECOM688 software for this procedure.

Reset:

Resets fault indications

Table 8:

Maintenance

Contrac actuators have a robust construction. As a result, they are highly reliable and require only little

maintenance. The maintenance intervals depend upon the effective load and are therefore not speci-

fied here.

The built-in microprocessor evaluates the actual load factors (e.g. torques, temperatures, etc.) and de-

rives the remaining operating time until the next routine maintenance is required. Use the configuration

program for viewing this information.

10.1 Motor and gears

All maintenance work must be carried out by qualified specialists who have been trained for this task.

As a rule, perform the following routine maintenance works:

- Check the shafts and gears.

- Check the motor pinion gear and the respective mating gear.

- Replace the motor's rotary shaft seal and ball bearings.

- Check the position sensor.

- Change the oil; then make a visual check and check for proper operation.

10.2 Adjusting the brake

CAUTION

The actuator setting may be changed accidentally by the repelling power of the valve when the brake

is released!

In automatic mode the brake is permanently released. Therefore, it is not exposed to wear and does

not require any re-adjustment.

A68-2005-003 EN

Electrical Part Turn Actuators for Continuous Modulating Control PME120AI (Contrac)

Function

Adjustment

Bootstrap mode

Fault (both LEDs flash alternately at 4Hz)

Both LEDs flash synchronously at approx 4Hz

after time has expired.

Both LEDs continue to flash at 4Hz while driv-

ing.

The associated LED flashes at approx. 2Hz,

the other continues at 4Hz.

The associated LED flashes at approx. 2Hz

synchronously to the first one.

Both LEDs are briefly „ON" together and then

extinguish.

Operation

LED off

Both LED are „ON"; actuator is not available

If no „Failure" conditions exist, both LEDs ex-

tinguish (if the actuator had been moved out of

its operating range, drive it back prior to the re-

set).

Maintenance

Indication