Flowserve 1000 Series Digitial Positioner Bedienungsanleitung PDF herunterladen (Seite 15)

FCD AXAIM0064-00 (AUTO-64) 08/04 Page: 15 of 16

Logix Series 1000 Digital Positioner

Installation, Operation and Maintenance Instructions

Flowserve Corporation 1350 N. Mountain Springs Parkway 1978 Foreman Dr.

Flow Control Division Springville, Utah 84663-3004 Cookville, TN 38501

www.flowserve.com Phone: 801 489 2233 Phone: 931 432 4021

Failure Problem Cause Corrective action

No LED is blinking 1. Current source below 3.2 mA 1. Verify current source is

2. Incorrect wiring polarity outputing at least 3.2 mA

3. Stroke/actuator calibration in 2. Check wiring for correct polarity

progress 3. Normal operation

Erratic communications 1. Current source bandwidth not 1. Maximum allowable current

limited to 25Hz source rate of change is 924 mA

2. Maximum cable length or cable per second

impedance exceeded 2. Check cable conductor size,

3. HART modem connected to PC length and capacitance.

RS-232 port not receiving Reference page 4, ‘Cable

enough power Requirements.’

4. Interference with Intrinsically 3. Verify battery is not low if using

Safe barrier a laptop PC

4. Must use HART compatible

Intrinsically Safe barrier

Unit does not respond to analog 1. Unit is in digital command mode 1. Switch to analog command

commands 2. Error occurred during calibration mode.

Red LED blinking 2. Correct calibration error

Recalibrate

Valve position reading is not 1. Stem position sensor mounting 1. Remove feedback sensor

correct is off 180 degrees Rotate so that the dot on shaft

2. Stroke not calibrated faces wiring.

3. Tight shutoff is active 2. Calibrate valve stroke

4. Custom characterization or soft 3. Verify tight shutoff setting

stops active 4. Verify custom settings

Position is driven fully open or 1. Stroke not calibrated 1. Calibrate valve stroke

closed and will not respond to 2. Inner-loop hall sensor not 2. Verify hardware connections

command connected 3. Check ATO (Air-to-open) and

3. Wrong air action entered in ATC (Air-to-close) settings.

software Recalibrate

4. Actuator tubing backwards 4. Verify ATO/ATC actuator tubing

5. Pressure modulator minimum 5. Check minimum pressure

pressure too high setting and adjust if necessary

6. Control parameter inner-loop 6. Adjust inner-loop and see if

offset is too high/low proper control resumes

Sticking or hunting operation of the 1. Contamination of the spool valve 1. Check air supply for proper

positioner assembly filtering and meeting ISA

2. Control tuning parameters not specifications S7.3

correct 2. Lower proportional gain settings

Positioner is not responding when 1. Refer to page 11 1. Refer to page 11

Quick-Cal button is pressed

Troubleshooting Logix 1200 Positioner Systems

(AXAIM0096-00) Logix 1000 IOM 8/6/04 3:34 PM Page 15

1 2 ... 10 11 12 13 14 15 16

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