Functions And Signals At The Lcp; Maintenance; Motor And Gears; Adjusting The Brake - ABB Contrac PME120AI Instructions Manual

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:
10

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
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
17