Danfoss VLT FCD 302 Operating Manual page 61

Operating Guide | VLT® Decentral Drive FCD 302
ALARM 81, CSIV Corrupt
Cause
The CSIV file has syntax errors.
ALARM 82, CSIV Parameter Error
Cause
CSIV failed to initialize a parameter.
ALARM 83, Illegal Option Combination
Cause
The mounted options are incompatible.
ALARM 84, No Safety Option
Cause
The safety option was removed without applying a general reset.
Troubleshooting
Reconnect the safety option.
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ALARM 88, Option Detection
Cause
A new option configuration has been detected.
Troubleshooting
Set parameter 14-89 Option Detection to [1] Enable Option Change, and power cycle the drive to accept the new configuration.
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WARNING 89, HOIST BRAKE SLIDING
Cause
This warning occurs when the motor speed feedback is bigger than 10 RPM during torque building time before the brake is open
(parameter 2-27 Torque Ramp Up Time).
Troubleshooting
Check if the mechanical brake is broken or opened before start.
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Check that the feedback is not zero before opening the brake.
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ALARM 90, Feedback Monitor
Troubleshooting
Check the connection to the encoder/resolver option and, if necessary, replace the VLT® Encoder Input MCB 102 or VLT® Resolver
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Input MCB 103.
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.
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ALARM 99, Locked Rotor
Cause
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Operating the Drive
AQ267036816112en-000301 / 130R0208 | 61