Jet IBG-8VSB Operating Instructions Manual

Contents

12Symptom Possible Cause Correction *Motor slows. Motor overloaded. Reduce load to motor; do not press sohard.Low line voltage. Check power line for proper voltage.Loose electrical connections. Inspect connections.Frequent fuse or circuitbreaker failure.Motor overload. Reduce load to motor; do not press sohard.Electrical circuit overload; too manyelectrical machines running on samecircuit.Turn off other machines and try again.Incorrect fuse or circuit breaker Have electrician upgrade service to outlet.Excessive vibration. Wheel(s) out of balance; wobbling ornot rotating concentric to arbor.Rake the wheel or replace it. Adjustwobble by rotating flange as needed.Improper mounting. Secure machine firmly to bench or stand.10.2 Digital readout error codesTable 4Message Possible Cause Correction *OCL Internal electronic overload has been tripped. Do not overload motor; reduce pressure ofworkpiece against wheels.OH IGBT protection activated.Inspect wire connections to U/V/W for possibleshort circuits. Verify that motor ratingcorresponds to AC motor drive output power.OE Excessive input voltage (exceeds AC driverlimits). Use correct voltage.LE1Low voltage; AC motor driver detects that DCbus voltage has fallen below minimumthresholdMake sure input voltage falls within range of ACmotor input voltage range. Check for abnormalload in motor.LP1 Low input voltage (below AC driver limits) Use correct voltage.* WARNING: Some corrections may require a qualified electrician.