ABB ACH550-UH HVAC User Manual - Page 3

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ABB ACH550-UH HVAC User Manual
ACH550-UH User's Manual
Fault
Code
5
6
7
8
9
10
11
12
14
15
Fault Name In
Panel
R
Not used.
ESERVED
Intermediate circuit DC voltage is not sufficient. Check for and correct:
DC UNDERVOLT
• Missing phase in the input power supply.
• Blown fuse.
• Undervoltage on mains.
1
Analog input 1 loss. Analog input value is less than
AI
LOSS
Check for and correct:
• Source and connection for analog input.
• Parameter settings for
2
Analog input 2 loss. Analog input value is less than
AI
LOSS
Check for and correct:
• Source and connection for analog input.
• Parameter settings for
Motor is too hot, based on either the drive's estimate or on temperature
MOT TEMP
feedback.
• Check for overloaded motor.
• Adjust the parameters used for the estimate (3005...3009).
• Check the temperature sensors and Group 35 parameters.
Panel communication is lost and either:
PANEL LOSS
• Drive is in local control mode (the control panel displays HAND or OFF),
or
• Drive is in remote control mode (AUTO) and is parameterized to accept
start/stop, direction or reference from the control panel.
To correct check:
• Communication lines and connections
• Parameter 3002
• Parameters in Group 10: START/STOP/DIR and Group 11:
REFERENCE SELECT (if drive operation is AUTO).
The motor ID run was not completed successfully. Check for and correct:
ID RUN FAIL
• Motor connections
• Motor parameters 9905...9909
Motor or process stall. Motor is operating in the stall region. Check for and
MOTOR STALL
correct:
• Excessive load.
• Insufficient motor power.
• Parameters 3010...3012.
1 Digital input defined to report first external fault is active. See parameter
EXTERNAL FLT
3003
EXTERNAL FAULT
2 Digital input defined to report second external fault is active. See parameter
EXTERNAL FLT
3004
EXTERNAL FAULT
Description and Recommended Corrective Action
1
AI
FLT LIMIT
2
AI
FLT LIMIT
PANEL COMM ERROR
1.
2.
1
(3021).
AI
FLT LIMIT
(3021) and 3001
<
AI
MIN FUNCTION
2
(3022).
AI
FLT LIMIT
(3022) and 3001
<
AI
MIN FUNCTION
.
Diagnostics
1-283
.
.