Danfoss VLT AutomationDrive EZ FC 321 Programming Manual page 368

VLT® AutomationDrive EZ FC 321
Programming Guide
5.2.70 ALARM 78, Tracking Error
Cause
The difference between setpoint value and actual value exceeds the value in parameter 4-35 Tracking Error.
Troubleshooting
•
Disable the function or select an alarm/warning in parameter 4-34 Tracking Error Function.
• Investigate the mechanics around the load and motor. Check feedback connections from motor encoder to drive.
• Select motor feedback function in parameter 4-30 Motor Feedback Loss Function.
• Adjust the tracking error band in parameter 4-35 Tracking Error and parameter 4-37 Tracking Error Ramping.
5.2.71 ALARM 79, Illegal Power Section Configuration
Cause
The scaling card has an incorrect part number or is not installed. The MK102 connector on the power card could not be installed.
5.2.72 ALARM 80, Drive Initialized to Default Value
Cause
Parameter settings are initialized to default settings after a manual reset.
Troubleshooting
• To clear the alarm, reset the unit.
5.2.73 ALARM 81, CSIV Corrupt
Cause
The CSIV file has syntax errors.
5.2.74 ALARM 82, CSIV Parameter Error
Cause
CSIV failed to initialize a parameter.
5.2.75 ALARM 83, Illegal Option Combination
Cause
The mounted options are incompatible.
5.2.76 ALARM 88, Option Detection
Cause
A change in the option layout is detected. Parameter 14-89 Option Detection is set to [0] Frozen configuration and the option layout
has been changed.
Troubleshooting
•
To apply the change, enable option layout changes in parameter 14-89 Option Detection.
• Alternatively, restore the correct option configuration.
5.2.77 WARNING 89, Mechanical Brake Sliding
Cause
The hoist brake monitor detects a motor speed exceeding 10 RPM.
5.2.78 ALARM 91, Analog Input 54 Wrong Settings
Troubleshooting
• Set switch S202 in position OFF (voltage input) when a KTY sensor is connected to analog input terminal 54.
368 | Danfoss A/S © 2021.08
Troubleshooting
AU373327181955en-000101 / 130R1208