Section 1
General Information
Troubleshooting 5-9
MN1230
Table 5-5 Troubleshooting
Continued
INDICATION
POSSIBLE CAUSE
CORRECTIVE ACTION
New Base ID
Software parameters are not
initialized on newly installed
control board.
Press “RESET” key on keypad to clear the fault condition. Reset
parameter values to factory settings. Re-enter the Parameter Block Values
you recorded in the User Settings at the end of this manual. Autotune the
control.
Over Current FLT
Current Limit parameter set too low.
Increase PK Current Limit parameter in the Level 2
Output Limits block.
ACCEL/DECEL time too short.
Increase ACCEL/DEC parameters in the Level 1
ACCEL/DECEL Rate block.
Excessive noise on resolver lines.
Check encoder connections.
Separate encoder leads from power wiring.
Cross encoder wires and power leads at 90
°
.
Electrically isolate encoder from motor.
Install optional Isolated Encoder Feedback expansion board.
Electrical noise from external DC
coils.
Install reverse biased diodes across all external DC relay coils as shown in
the Opto Output circuit examples of this manual. See Electrical Noise
Considerations in Section 5 of this manual.
Electrical noise from external AC
coils.
Install RC snubbers on all external AC coils. See Electrical Noise
Considerations in Section 5 of this manual.
Excessive load.
Reduce the motor load.
Verify proper sizing of control and motor.
Overload
Peak output current exceeded 2.5
second rating.
Check PK Current Limit parameter in the Level 2 Output Limits block.
Change Overload parameter In the Level 2 Protection block
from Trip to Foldback.
Check motor for overloading.
Increase ACCEL time.
Reduce motor load.
Verify proper sizing of control and motor.
Over Speed
Motor exceeded 110% of MAX
Speed parameter value.
Check Max Output Speed in the Level 2 Output Limits block.
Increase Speed PROP Gain in the Level 1 Brushless Control block.
Summary of Contents for 29M
Page 1: ...Series 29M Servo Control Installation Operating Manual 1 98 MN1230 AC SERVO DRIVE...
Page 5: ...Section 1 General Information iv Table of Contents MN1230...
Page 7: ...Section 1 General Information 1 2 Receiving Inspection MN1230...
Page 45: ...Section 1 General Information 3 34 Installation MN1230...
Page 94: ...Section 1 General Information Specifications and Product Data 7 7 MN1230 Dimensions...
Page 102: ...Appendix B Appendix B 1 MN1230...