ABB DriveIT ACH550-UH - Page 214

214 ACH550-UH User’s Manual
Diagnostics
5 OVERLOAD Inverter overload condition. The drive output current exceeds the ratings
given in "Ratings" on page 225.
6
DC UNDERVOLT Intermediate circuit DC voltage is not sufficient. Check for and correct:
• Missing phase in the input power supply.
• Blown fuse.
• Undervoltage on mains.
7
AI1 LOSS Analog input 1 loss. Analog input value is less than AI1FLT LIMIT (3021).
Check for and correct:
• Source and connection for analog input.
• Parameter settings for AI1FLT LIMIT (3021) and 3001 AI<MIN FUNCTION.
8 AI2 LOSS Analog input 2 loss. Analog input value is less than AI2FLT LIMIT (3022).
Check for and correct:
• Source and connection for analog input.
• Parameter settings for
AI2FLT LIMIT (3022) and 3001 AI<MIN FUNCTION.
9
MOT TEMP Motor is too hot, based on either the drive’s estimate or on temperature
feedback.
• Check for overloaded motor.
• Adjust the parameters used for the estimate (3005…3009).
• Check the temperature sensors and Group 35 parameters.
10
PANEL LOSS Panel communication is lost and either:
• Drive is in local control mode (the control panel displays HAND), or
• Drive is in remote control mode (REM) and is parameterized to accept
start/stop, direction or reference from the control panel.
To correct check:
• Communication lines and connections
• Parameter 3002
PANEL COMM ERROR.
• Parameters in Group 10: Command Inputs and Group 11: Reference
Select (if drive operation is REM).
11
ID RUN FAIL The motor ID run was not completed successfully. Check for and correct:
• Motor connections
12 MOTOR STALL Motor or process stall. Motor is operating in the stall region. Check for and
correct:
• Excessive load.
• Insufficient motor power.
• Parameters 3010…3012.
13 R
ESERVED Not used.
14 EXTNAL FLT 1 Digital input defined to report first external fault is active. See parameter
3003
EXTERNAL FAULT 1.
15
EXTERNAL FLT 2 Digital input defined to report second external fault is active. See parameter
3004
EXTERNAL FAULT 2.
16
EARTH FAULT The load on the input power system is out of balance.
• Check for/correct faults in the motor or motor cable.
• Verify that motor cable does not exceed max. specified length.
17
UNDERLOAD Motor load is lower than expected. Check for and correct:
• Disconnected load.
• Parameters 3013
UNDERLOAD FUNCTION…3015 UNDERLOAD CURVE.
Fault
Code
Fault Name In
Panel
Description and Recommended Corrective Action