Section 1
General Information
5-6 Troubleshooting
MN718
Table 5-2 Troubleshooting
Continued
INDICATION
POSSIBLE CAUSE
CORRECTIVE ACTION
External Trip
Motor ventilation insufficient.
Clean motor air intake and exhaust.
Check external blower for operation.
Verify motor’s internal fan is coupled securely.
Motor draws excessive current.
Check motor for overloading.
Verify proper sizing of control and motor.
No thermostat connected.
Connect thermostat.
Verify connection of all external trip circuits used with thermostat.
Disable thermostat input at J1-16 (External Trip Input).
Poor thermostat connections.
Check thermostat connections.
External trip parameter incorrect.
Verify connection of external trip circuit at J1-16.
Set external trip
parameter to “OFF” if no connection made
at J1-16.
Following ERR
Speed proportional gain set too low.
Following error tolerance band set too narrow.
Increase Speed PROP Gain parameter value.
Current limit set too low.
Increase Current Limit parameter value.
ACCEL/DECEL time too short.
Increase ACCEL/DECEL parameter time
Excessive load.
Verify proper sizing of control and motor.
GND FLT
Improper wiring.
Wiring shorted in conduit.
Motor winding shorted.
Disconnect wiring between control and motor. Retry test.
If GND FLT is cleared, reconnect motor leads and retry the test.
Rewire as necessary.
Repair motor.
If GND FLT remains, contact Baldor.
INT Over-Temp
Motor Overloaded.
Correct motor loading.
Verify proper sizing of control and motor.
Ambient temperature too high.
Relocate control to cooler operating area.
Add cooling fans or air conditioner to control cabinet.
Invalid Base ID
Control does not recognize HP and
Voltage configuration.
Press “RESET” key on keypad. If fault remains, call Baldor.
Inverter Base ID
Power base with no output phase
current sensors being used.
Replace power base with one that has output leg current
feedback. Contact Baldor.
Logic Supply FLT
Power supply malfunctioned.
Replace logic power supply.
Lost User Data
Battery backed memory failure.
Parameter data was erased. Disconnect power to control and
apply power (cycle power). Enter all parameters.
Cycle power. If problem persists, contact Baldor.
Low INIT Bus V
Improper AC line voltage.
Disconnect Dynamic Brake hardware and retry test.
Check input AC voltage level.
Memory Error
EEPROM memory fault occurred.
Press “RESET” key on keypad. If fault remains, call Baldor.
m
P Reset
Power was cycled before Bus
voltage reached 0VDC.
Press “RESET” key on keypad.
Disconnect power and allow at least 5 minutes for
Bus capacitors to discharge before applying power.
If fault remains, call Baldor.
Summary of Contents for 18H Series
Page 1: ...SERIES 18H AC Flux Vector Control Installation Operating Manual 9 97 MN718 VECTOR DRIVE ...
Page 105: ...Section 1 General Information 5 18 Troubleshooting MN718 ...
Page 109: ...Section 1 General Information 6 4 Manual Tuning the Series 18H Control MN718 ...
Page 144: ...Appendix C Appendix C 1 MN718 ...