VLT
®
Series 3500
103
TRIP000000000000
UNDER0VOLTAGE000
ALARM
Reset Messages
Reset messages appear in the second line of the display.
Reset messages
Alarm messages
Automatic Restart (RESTART):
When “automatic reset” has been selected in parameter
309, this message indicates that the drive is trying to restart
automatically after having tripped. The time delay before
the restart is set by parameter 312.
Trip (TRIP):
The drive has tripped and manual resetting has been se-
lected by parameter 309. Manual resetting can be carried
out by means of the reset key on the keyboard, a digital in-
put to terminal 16, 17 or 27, or through the serial interface.
Trip Locked (TRIP LOCKED):
The drive has tripped and resetting is only possible by re-
moving and reapplying AC power, and then resetting as in
Trip, above. A trip lock fault is considered serious and the
cause of the fault should be corrected before resetting.
Alarm Messages
Alarm messages appear in the third line of the display and
describe the reason for the fault trip.
Undervoltage (UNDER VOLTAGE):
Error code 3
The DC bus voltage is below the undervoltage limit of the
drive, see the table on the previous page.
Overvoltage (OVER VOLTAGE):
Error code 2
The DC bus voltage is above the overvoltage limit of the
drive, see the table on the previous page.
Current Limit (CURRENT LIMIT):
Error code 9
The motor current has exceeded the value of parameter
209 for a longer time than that permitted in parameter 310.
Overcurrent (OVER CURRENT):
Error code 4
The peak current limit of the inverter, approximately 250%
of the rated current, has been exceeded for more than 7 to
11 secs. This causes a Trip Locked fault.
Ground Fault (GROUND FAULT):
Error code 5
There is a current path from the output phases to the
ground, either in the wiring between the drive and the mo-
tor, or within the motor. This causes a Trip Locked fault.
Overtemperature (OVER TEMP):
Error code 6
Too high a temperature has been measured within the
drive. A cool-down period is required before resetting is
possible. This causes a Trip Locked fault.
Inverter Overloaded (OVERLOAD):
Error code 7
The electronic thermal inverter protection reports that the
drive has tripped because of overload (too high a current
for too long). The counter for electronic thermal inverter
protection has reached 100%.
Motor Overloaded (MOTOR TRIP):
Error codes 8 and 15
The motor electronic thermal relay (ETR) protection reports
that the motor is too hot. “Trip” must be selected in param-
eter 315 for this alarm to activate.
Inverter Fault (INVERT FAULT):
Error code 1
There is a fault on the power side of the drive.
Fault Messages
The fault messages listed below are shown on the third line
of the display and indicate that a prohibited change is being
attempted.
The display will show KEY DISABLED if an attempt is
made to change a parameter when Factory Setup had been
selected in parameter 001. Change to setup 1, 2, 3, or 4 to
change the parameters.
If the display reads ONLY IN STOP when an attempt is
made to change data, this means that the function cannot
be changed with the drive running. Press Stop/Reset and
then change the parameter.
If the display reads LOCK OPEN when an attempt is made
to change a parameter, the mechanical keypad lockout is
open. Switch pin 01 must be closed before any parameter
is changed.
If the display reads LIMIT when a parameter is being
changed, it means one end of the permissible range has
been reached.
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