16-6* Inputs/Outputs
16-60 Digital Input 18,19,27,33
0–1111
16-61 Digital Input 29
0–1
16-62 Analog Input 53 (volt)
16-63 Analog Input 53 (current)
16-64 Analog Input 60
16-65 Analog Output 42 [mA]
16-68 Pulse Input [Hz]
16-71 Relay Output [bin]
16-72 Counter A
16-73 Counter B
16-8* Ser. Com Bus/FC Port
16-86 FC Port REF 1
0x8000–0x7FFFF
16-9* Diagnosis Readouts
16-90 Alarm Word
0–0XFFFFFFFF
16-92 Warning Word
0–0XFFFFFFFF
16-94 Ext. Status Word
0–0XFFFFFFFF
18-** Extended Motor Data
18-8* Motor Resistors
18-80 Stator Resistance (High
resolution)
0.000–99.990 ohm * 0.000 ohm
18-81 Stator Leakage Reactance
(High resolution)
0.000–99.990 ohm * 0.000 ohm
Table 1.11
1.6 Troubleshooting
No
.
Description Warning Alarm Trip
Lock
Error Cause of Problem
2 Live zero error X X Signal on terminal 53 or 60 is less than 50% of value set in
6-10 Terminal 53 Low Voltage, 6-12 Terminal 53 Low Currentand
6-22 Terminal 54 Low Current.
4
Mains phase loss
1)
X X X Missing phase on the supply side, or a voltage imbalance that is
too high. Check supply voltage.
7 DC overvoltage1) X X Intermediate circuit voltage exceeds the limit.
8 DC undervoltage1) X X Intermediate circuit voltage drops below the “voltage warning
low” limit.
9 Inverter overloaded X X More than 100% load for too long.
10 Motor ETR overtemperature X X Motor is too hot due to more than 100% load for too long.
11 Motor thermistor overtem-
perature
X X The thermistor or the thermistor connection is disconnected.
12 Torque limit X Torque exceeds the value set in either par. 4-16 or 4-17.
13 Overcurrent X X X Inverter peak current limit is exceeded.
14 Earth fault X X X Discharge from output phases to ground.
16 Short-circuit X X Short-circuit in the motor or on the motor terminals.
17 Control word timeout X X No communication to the adjustable frequency drive.
25 Brake resistor short-circuited X X Brake resistor is short-circuited, thus the brake function is
disconnected.
27 Brake chopper short-circuited X X Brake transistor is short-circuited, thus the brake function is
disconnected.
28 Brake check X Brake resistor is not connected/working
29 Power board overtemp X X X Heatsink cut-out temperature has been reached.
30 Motor phase U missing X X Motor phase U is missing. Check the phase.
31 Motor phase V missing X X Motor phase V is missing. Check the phase.
32 Motor phase W missing X X Motor phase W is missing. Check the phase.
38 Internal fault X X Contact local Danfoss supplier.
44 Earth fault X X Discharge from output phases to ground.
47 Control Voltage Fault X X 24 V DC may be overloaded.
51 AMT check U
nom
and I
nom
X Wrong setting for motor voltage and/or motor current.
52 AMT low I
nom
X Motor current is too low. Check settings.
2.3
2
[59]
Current limit X VLT overload.
63 Mechanical Brake Low X Actual motor current has not exceeded the “release brake”
current in the “start delay” time window.
80 Drive Initialized to Default Value X All parameter settings are initialized to default settings.
84 The connection between drive
and LCP is lost
X No communication between LCP and adjustable frequency drive
85 Button disabled X
See parameter group 0-4* LCP
86 Copy fail X An error occurred while copying from adjustable frequency drive
to LCP or vice versa.
87 LCP data invalid X Occurs when copying from LCP if the LCP contains erroneous
data - or if no data was uploaded to the LCP.
88 LCP data not compatible X Occurs when copying from LCP if data are moved between
adjustable frequency drives with major differences in software
versions.
89 Parameter read-only X Occurs when trying to write to a read-only parameter.
3.5
4
[90]
Parameter database busy X LCP and RS485 connection are trying to update parameters
simultaneously.
91 Parameter value is not valid in
this mode
X Occurs when trying to write an illegal value to a parameter.
Quick Guide
VLT
®
Micro Drive Quick Guide
1-14 MG02B722 - VLT
®
is a registered Danfoss trademark
11
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