No. Description Warning Alarm/Trip Alarm/Trip Lock Parameter Reference
66 Heat sink Temperature Low X
67 Option Configuration has Changed X
69 Pwr. Card Temp X X
70 Illegal FC configuration X
71 PTC 1 Safe Stop X
X
1)
72 Dangerous Failure
X
1)
73 Safe Stop Auto Restart
76 Power Unit Setup X
79 Illegal PS config X X
80 Drive Initialized to Default Value X
91 Analog input 54 wrong settings X
92 NoFlow X X 22-2*
93 Dry Pump X X 22-2*
94 End of Curve X X 22-5*
95 Broken Belt X X 22-6*
96 Start Delayed X 22-7*
97 Stop Delayed X 22-7*
98 Clock Fault X 0-7*
201 Fire M was Active
202 Fire M Limits Exceeded
203 Missing Motor
204 Locked Rotor
243 Brake IGBT X X
244 Heatsink temp X X X
245 Heatsink sensor X X
246 Pwr.card supply X X
247 Pwr.card temp X X
248 Illegal PS config X X
250 New spare parts X
251 New Type Code X X
Table 9.2: Alarm/Warning code list
(X) Dependent on parameter
1) Can not be Auto reset via par. 14-20
Reset Mode
A trip is the action when an alarm has appeared. The trip will coast the motor and can be reset by pressing the reset button or make a reset by a digital
input (parameter group 5-1* [1]). The original event that caused an alarm cannot damage the frequency converter or cause dangerous conditions. A trip
lock is an action when an alarm occurs, which may cause damage to frequency converter or connected parts. A Trip Lock situation can only be reset by
a power cycling.
LED indication
Warning yellow
Alarm flashing red
Trip locked yellow and red
Table 9.3: LED Indication
VLT HVAC Low Harmonic Drive Operating In-
structions
9 Troubleshooting
MG.16.A1.02 - VLT
®
is a registered Danfoss trademark 171
9
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