Control Techniques Commander SE Advanced User's Manual page 80

10.19
This flag is set if any of the drive alarms are active, i.e. Drive temperature alarm, Overload alarm or Dynamic brake alarm.
10.19 = 10.18 or 10.17 or 10.12.
10.20
10.21
10.22
10.23
10.24
10.25
10.26
10.27
10.28
10.29
Parameter 10.20 is the most recent trip and 10.29 the oldest. When a new trip occurs all the parameters move down one, the
new trip is put in 10.20 and the oldest trip disappears from the bottom. Possible trips are:
Trip Code
UU
OU
OI.AC**
OI.br**
Et
O.SP
tunE
It.br
It.AC
Oht1
Oht2†
th
O.Ld1*
80
General drive alarm
0 or 1
Last trip
Second last trip
Third last trip
Fourth last trip
Fifth last trip
Sixth last trip
Seventh last trip
Eighth last trip
Ninth last trip
Tenth last trip
0 ~ 200
Trip
Condition
Number
1 DC link under voltage
2 DC link over voltage
3 AC instantaneous over current trip
4 Overcurrent on braking IGBT
6 External trip
7 Over speed
18 Auto-tune failure
19 Ixt on braking resistor
20 Motor overload on current x time
21 Overheat
22 Overheat (heatsink thermistor)
24 Over temperature (Motor thermistor)
26 +24V or digital output overload
RO Bit
RO Uni Txt S
Possible Cause
Low AC supply voltage
Low DC link voltage when supplied by external DC
power supply
Excessive inertia in the machine during deceleration
Deceleration rate set too fast for inertia of machine
Insufficient ramp times
Phase to phase or phase to earth short-circuit at
drive output
Drive requires autotuning to motor or motor
connections changed, re-autotune drive to motor
(see parameter 5.12)
Excessive current in braking resistor
Braking resistor value too small
(Does not apply to Size 1 units)
External trip terminal opened (when programmed)
Excessive motor speed (typically caused by the
mechanical load driving the motor) Standard ramp
voltage set too low, see parameter 2.08
Motor loaded or no motor connected
Excessive braking resistor energy
(Does not apply to Size 1 units)
Too much mechanical load
High impedance phase to phase or phase to earth
short circuit at drive output drive requires autotuning
to motor. Motor or motor connections changed, re-
autotune drive to Motor (see parameter 5.12)
Overheat thermal model
Temperature exceeds 95°C (203°F), 100°C (212°C)
for Size 4
Excessive motor temperature
Excessive load or short circuit on +24V output
Commander SE Advanced User Guide
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Issue Number: 4