ABB ACS800 Series Firmware Manual page 178

166
Warning Cause
POINTER ERROR Source selection (pointer) parameter points to
non existing parameter index.
(FFD0)
->POWEROFF! Inverter type (e.g. sr0025_3) has been
changed. Inverter type is usually changed at
(FF39)
factory or during drive implementation.
PP OVERLOAD Excessive IGBT junction to case temperature.
This can be caused by excessive load at low
(5482)
frequencies (e.g. fast direction change with
excessive load and inertia).
REPLACE FAN Running time of inverter cooling fan has
exceeded its estimated life time.
(4280)
START INHIBI Optional start inhibit hardware logic is
activated.
(FF7A)
02.15 AW 1 bit 0
START INTERL No Start Interlock signal received.
(FF8D)
SYNCRO SPEED Value of motor nominal speed set to parameter
99.08
(FF87)
synchronous speed of motor. Tolerance is
0.1%. This warning is active only in DTC mode.
TEMP DIF xx y Excessive temperature difference between
several parallel connected inverter modules.
(4380)
xx (1...12) refers to inverter module number
and y refers to phase (U, V, W).
Alarm is indicated when temperature difference
is 15 °C. Fault is indicated when temperature
difference is 20 °C.
Excessive temperature can be caused e.g. by
unequal current sharing between parallel
connected inverters.
THERMISTOR Motor temperature is excessive. Motor thermal
protection mode selection is THERMISTOR.
(4311)
02.15 AW 1 bit 02
(programmable
Fault Function
30.04...30.05)
T MEAS ALM Motor temperature measurement is out of
acceptable range.
(FF91)
02.15 AW 1 bit 06
UNDERLOAD Motor load is too low due to e.g. release
mechanism in driven equipment.
FF6A)
02.16 AW 2 bit 01
(programmable
Fault Function
30.13)
Fault tracing
is not correct: Value is too near
What to Do
Check source selection (pointer) parameter
settings.
Switch control board power off to validate
inverter type change.
Increase ramp time.
Reduce load.
Replace fan.
Reset fan run time counter 01.44.
Check start inhibit circuit (AGPS board).
Check circuit connected to Start Interlock input
on RMIO board.
Check nominal speed from motor rating plate
and set parameter 99.08 exactly accordingly.
Check cooling fan.
Replace fan.
Check air filters.
Check motor ratings and load.
Check start-up data.
Check thermistor connections to digital input
DI6.
Check connections of motor temperature
measurement circuit. See chapter
features for circuit diagram.
Check for problem in driven equipment.
Check Fault Function parameters.
Program