SYMPTOM
POSSIBLE CAUSE
CORRECTIVE ACTION
FOLLOWING ERROR
Speed proportional gain too low.
Increase SPEED PROP GAIN parameter setting.
FAULT
Current limit set too low.
Increase CURRENT LIMIT parameter setting.
Accel/decel time(s) too short.
Lengthen ACCEL/DECEL parameter time(s).
Excessive load.
Verify sizing of motor and control for application.
FAILS RESOLVER
Resolver miswired.
Check wiring.
AUTO
Excessive noise on resolver lines.
Check resolver connections.Separate resolver
TUNING TEST
leads from power wiring. Cross power leads at
90°.
GND FAULT
Improper wiring.
Disconnect wiring between control and motor.
Retry. If cleared, reconnect motor and control
and try again. Call factory if problem remains.
INT-OVERTEMP FLT
Motor overloaded.
Correct motor loading.
Verify sizing of motor and control for application.
Ambient temperature too high.
Relocate control to cooler operating area.
Add cooling fans or air conditioner to control
cabinet.
INVERTER BASE ID
Power base with no output leg current
Replace power base with one having output leg
sensors being used.
current feedback. Contact factory.
LOGIC SUPPLY FLT
Power supply malfunctioned.
Replace logic power supply.
LOW INIT. BUS V
Improper line voltage.
Disconnect DB hardware and retry.
Check input voltage level.
LOST USER DATA
Battery backed Ram parameters lost or
Reload all parameters and cycle input power.
corrupted.
Call factory if problem remains.
MEMORY ERROR FLT EPROM error occurred.
Push RESET key. Contact factory if fault
remains.
mP RESET
Power was cycled before bus bled
Press RESET key. Contact factory if fault
completely down.
remains. Allow time between power cycling for
bus to bleed completely down.
Continued on next page...
4-10 DIAGNOSTIC INFO AND TROUBLESHOOTING
MN723H-10/95 11/28/95 1:14 AM Page 94 (Black plate)
Summary of Contents for 23H Series
Page 11: ...1 8 GENERAL INFORMATION MN723H 10 95 11 28 95 1 07 AM Page 12 Black plate...
Page 83: ...3 30 KEYPAD PROGRAMMING AND OPERATION MN723H 10 95 11 28 95 1 13 AM Page 84 Black plate...
Page 99: ...4 16 DIAGNOSTIC INFO AND TROUBLESHOOTING MN723H 10 95 11 28 95 1 14 AM Page 100 Black plate...
Page 125: ...5 26 APPENDIX G MN723H 10 95 11 28 95 1 21 AM Page 126 Black plate...
Page 126: ...MN723H 10 95 11 28 95 1 21 AM Page 127 Black plate...