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Troubleshooting guide – Red Lion LEGEND User Manual

Page 47

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TROUBLESHOOTING GUIDE

For further technical assistance, contact technical support at the appropriate company numbers listed.

PROBLEMS

POSSIBLE CAUSE

REMEDIES

NO DISPLAY

1. Power off

1. Verify power.

2. Improperly wired

2. Check wiring.

3. Voltage selector switch in the wrong position.

3. Check switch position.

4. Power in a Brown out condition.

4. Verify voltage reading.

5. If powered by +12 VDC source, not enough current

to drive Legend unit.

5. Verify Source current rating.

CHECKSUM
ERROR 1 OR 2 ON DISPLAY

1. Data error detected by processor.

1. Press “ENT” key.

a. Check all programming parameters.

2. Check signal lines for possible noise sources.

UNIT DOES NOT COUNT

1. No input signal.

1. Check sensor connections.

a. Verify power to sensor.

2. Type of input signal incorrectly selected.

2. Check DIP switch setting on side of unit.

3. Count inhibited.

3. Disable count inhibit.

4. Scale factor and/or multiplier value too small.

4. Check scale factor value and scale multiplier

values.

UNIT WILL NOT ACCEPT THE DESIRED
PRESET

1. When a count scale factor greater than 1 is used,

the preset value must be evenly divisible by
the scale factor.

1. Unit automatically adjusts preset to be evenly

divisible by the scale factor.

UNIT COUNTS INCORRECTLY

1. Input signal type incorrectly selected.

1. Check DIP switches. Set HI/LO FRQ. switch to LO

for a count speed of less than 50 Hz.

2. Inputs improperly connected.

2. Check sensor input connections.

3. Electrical noise interference.

3. Check power source for noise.

a. Check signal wire routing.

4. Incorrect counting mode.

4. Verify programming in “Program Cntr Module”.

5. Scale factor incorrect.

5. Verify scale factor value.