MAINTENANCE AND TROUBLESHOOTING
vacon • 80
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10
70
LCL Temperature LCL Overtemp trip from digital input.
Check the LCL filter
and signal
connection. Check fan
---
72
AC VoltMax Trip
AC voltage on line side is above the
max limit.
Check AC Voltage
Delayed
73
AC VoltMin Trip
AC voltage on line side is below the
min limit.
Check AC Voltage
Delayed
74
FreqOverLimit
AC frequency on line side is above the
max limit.
Check AC Frequency
Delayed
75
FreqUnderLimit
AC frequency on line side is below the
min limit.
Check AC Frequency
Delayed
76
DC Ground Warn-
ing
DC Insulation measurement signal
has
gone above the warning limit.
Check DC Insulation
---
77
DC Ground Fault
DC Insulation measurement signal
has
gone above the fault limit.
Check DC Insulation
Delayed
83
Surge Alarm
Surge alarm from digital input.
Remove fault situation
from
external device.
---
85
Fieldbus
Heartbeat signal from touchpad panel
is missing while running in array con-
figuration.
Warning = inverter not active
Fault = inverter active
Check touchpad panel.
Check the
control place
Delayed
86
Input Switch
Input Switch in wrong state
Check the input Switch
---
90
High Voltage
Time limit at HIGH voltage level
reached. Grid Code
Check grid voltage
---
91
Low Voltage
Time limit at LOW voltage level
reached. Grid Code
Check grid voltage
---
92
High Frequency
Time limit at HIGH frequency level
reached. Grid Code
Check grid frequency
---
93
Low Frequency
Time limit at LOW voltage level
reached. Grid Code
Check grid frequency
---
94
Re Connect Time Grid has been faulty and Unit has
delay
when that is reconnection to grid.
Wait 0-10minutes
depending Grid
standard.
---
95
Emergency
Switching
Command for emergency stop
received
from digital input.
New run command is
accepted
after reset.
---
97
Power Limit
Warning
Power is limited by temperature.
Temperature
is over 75degrees
Check Cooling sys-
tems.
---
Fault
code
Fault
Possible cause
Correcting measures
Auto
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