KSB SMARTRONIC MA R1310, Инструкция пользователя

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SMARTRONIC MA
IX - Operating faults - Causes and solutions
Operating faults Causes Corrections
On power up, the display does not come on
after 3 seconds
- Check the current loop:
incorrect wiring and loop current I < 3.8 mA
- Adjust the contrast
- Electronic board out of service
- Set the installation in conformity
- Turn the blue potentiometer
- Replace the board (see Spare parts kit)
On power up, the display turns black
- Adjust the contrast
- Electronic board out of service
- Turn the blue potentiometer
- Replace the board (see Spare parts kit)
The positioner is not controlled by the 4- 20mA
signal
- SMARTRONIC MA not calibrated
- SMARTRONIC MA in manual mode
- Insufficient motor air pressure
- Valve blocked
- Actuator blocked or destroyed
- Electrodistributor defective
- Electronic board defective
- Start the autocalibration procedure
- Change the operating mode to
AUTO (see § VII - 3 - 1 )
- Check the supply pressure
7 bar > P > 2 bar
- Check that the valve can move freely
- Check / replace the actuator
(see § XI - Spare parts kit)
- Replace the pilots or the electrodistributor
(see § XI Spare parts kit)
- Replace the board (see § XI - Spare parts
kit)
Positioner shifts or oscillates slowly with a
stable input signal
- ” P ” leak to one of the chambers:
unit not fastened correctly to the actuator
- ” P ” leak to one of the chambers:
leak from the actuator piston seal
- ” P ” leak to one of the chambers:
leak inside the electrodistributor
- The regulation parameters (gain, dead
bands) are not suitable
- Screw the unit attachment without
exceeding the maximum torque
- Repair or replace the actuator
- Replace the distributor: spare parts kit
(see § XI Spare parts kit)
- Restart an auto-calibration procedure (see
§ VII - 4 auto-calibration)
- Adjust the regulation parameters manually
(see § VII - 6 - 1 Manual calibration)
Operating time too long
- Insufficient air pressure (< 2 bar)
- Dynamic sealing damaged between the
chambers of the actuator cylinder
- The distributor does not provide the flow
rate of 400 L/min
- The actuator displacement does not
correspond to the required operating time
- Restore a correct pressure
- Repair or replace the actuator
- Check the minimum operating times of the
actuators
- Check the minimum operating times of the
actuators