Fault
code
Fault ID Fault name Possible cause How to correct the fault
9 80 Undervoltage (fault) The DC link voltage is lower
than the limits.
•
The supply voltage is
too low
•
a defective component
•
a defective input fuse
•
the external charge
switch is not closed
NOTE!
This fault becomes active
only if the drive is in Run
state.
If there is a temporary supply volt-
age break, reset the fault and
restart the drive.
Do a check of the supply voltage. If
the supply voltage is sufficient,
there is an internal fault.
Examine the electrical network for
fault.
Ask instructions from the distribu-
tor near to you.
10 91 Input phase
•
supply voltage mal-
function
•
a defective fuse or mal-
function in the supply
cables
The load must be a mini-
mum of 10-20% for the
supervision to work.
Do a check of the supply voltage,
the fuses and supply cable, the
rectifying bridge and the gate con-
trol of the thyristor (MR6->).
11 100 Output phase super-
vision
The measurement of cur-
rent tells that there is no
current in 1 motor phase.
•
a motor or motor
cables malfunction
•
a filter (du/dt, sinus)
malfunction
Do a check of the motor cable and
the motor.
Do a check of the du/dt or sinus fil-
ter.
13 120 AC drive undertem-
perature (fault)
The temperature is too low
in the heatsink of the power
unit or in the power board.
The ambient temperature is too
low for the drive. Move the drive in
a warmer position.
FAULT TRACING VACON · 369
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11
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