Okuma BL2-D axis servo drive troubleshooting
Contents
1. TROUBLESHOOTING OKUMA BL2D BLIID BL4D AXIS DRIVES Use camera to document drives especially all the dip switches before you start Make sure you leave machine configured as original after troubleshooting Do not swap control cards only swap whole drives for troubleshooting purposes Generally you can swap up or down one drive size 30A for a 50A etc Exercise caution when troubleshooting Lethal voltages are present in drive cabinets and on the drives Make sure the DC bus is discharged and machine is powered off at source before swapping any drive BL2 D Axis Servo Drive Troubleshooting gt Main machine power on CNC control NOT on Some BL2 D drives have Green LED lit o Suspect Drive has no lit LED Replace drive o Any Red Alarm LED lit on BL2 D drive Replace drive gt After CNC control started machine runs other axis move OK Moving suspect axis causes alarm Check alarm LED on drive LOSS LED lit Internal drive power supply defective Replace drive IOCS IOCM LED lit Over current alarm Alarms only on RAPIDS amp ALARM Resets May not be drive problem Call for troubleshooting o IOCS IOCM LED lit Usually fatal Megger motor possibly motor toasted drive Swap entire drive to known good axis to verify Replace drive LV Low Voltage LED lit Check circuit breaker swap drive to known good axis HV High Voltage LED lit Usually on rapids de acceleration Swap drive to known good axis of exact same size Replace drive This guid2. e is appropriate for the following CNC part number Okuma part number 1006 number Okuma U number Description BL2 DI15A BLII DI5A 1006 0610 Single 15 amp BL2 D30A BLII D30A 1006 0611 Single 30 amp BL2 D50A BLII D50A 1006 0612 Single 50 amp BL2 D75A BLII D75A 1006 0613 Single 75 amp BL2 D100A BLII D100A 1006 0614 Single 100 amp BL2 D150A BLII D150A 1006 0615 1006 0645 Single 150 amp BL2 D200A BLII D200A 1006 0616 BL2 D1515 BLII D15 15A 1006 0620 Dual 15 15 amp BL2 D3030A BLII D30 30A 1006 0625 Dual 30 30 amp BL2 DS5015A BLII D50 15A 1006 0622 Dual 50 15 amp BL2 D5030A BLII D50 30A 1006 0626 Dual 30 30 amp BL2 D7530A BLII D75 30A 1006 0627 Dual 30 30 amp BL2 D5050A BLII D50 50A 1006 0629 Dual 30 30 amp BL2 D7550A BLII D 75 50A 1006 0630 Dual 30 30 amp BL2 D7575A BLII D 75 75A 1006 0632 Dual 75 75 amp BL4 D200A BLIV D U0213 0006 Universal Single BL4 D7575A BLIV D U0632 0006 Universal Dual sales cncrepair com Phone 408 331 1970 USA Fax 855 272 376 2015 www cncrepair com
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